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How to Change Text Color in a Linux Terminal

by Chris Maunder

A quick overview and a simple bash script to make your script output a little more lively

Proper Bash Scripting on Windows: Associate SH Scripts to WSL (Windows 10) (Enable drag-and-drop to .sh) (+other Linux Executables)

by Alex the Green Apple

Guide to properly set up Windows 10 for Shell scripting

Create, Connect and Add Custom Domain to WordPress Bitnami Ready-to-Run Virtual Machine in Microsoft Azure

by Ahmed Khateeb

In this article, I will describe how to Create WordPress Bitnami VM, how to connect to VM, how to add Custom Domain to that VM and important steps to follow after fresh installation.

Effective Shell Part 1: Navigating the Command Line

by Dave Kerr

Text in the command line can quickly get unwieldy. Here are some simple tricks you can use to navigate in the command line.

Latest Articles

How to build FFmpeg 7 from source and what you can do with its new features

by V. Subhash

Compile FFmpeg v7.0 CLI from source and check out some of its new features

FFmpeg Filters Every Youtuber Needs

by V. Subhash

A simple fix for excessively bright video and low-volume audio

Change Default Crontab Editor in bash shell for Raspberry Pi

by ToughDev

This post shows a way to change the default crontab editor in bash shell for Raspberry Pi.

How to Compile FFmpeg 6.0 in Linux and What New Things Can Be Done With It

by V. Subhash

How to get compile the latest FFmpeg source code and try out some new features

All Articles

Bash

How can I separate some repeated patterns in a row into multiple rows using bash script?

14 Oct 2013 by 101zeeshan101

You can use sed like this:Solution:s='1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4'p='1 2 3 4'echo "$s"|sed "s/$p\s*/&\n/g"1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4You can use infinite while loop and use the input file and iterate through each line to use this logic for murtiple lines.Live...

Linux replacement command by index

26 May 2015 by _Asif_

I have not tried it myself but it seems that this could help you out[^]

Create, Connect and Add Custom Domain to WordPress Bitnami Ready-to-Run Virtual Machine in Microsoft Azure

25 Oct 2016 by Ahmed Khateeb

In this article, I will describe how to Create WordPress Bitnami VM, how to connect to VM, how to add Custom Domain to that VM and important steps to follow after fresh installation.

Bash script that detects if a file is the correct size

23 Jun 2015 by Aiden.JP

I'm trying to make this bash script dispatch and email when it detects that a certain type of file (files ending in ".gz"), which was last modified 24 hours ago, is below a certain size in a directory, I currently have it running on my entire computer. (I have it set to 10 kilobytes).It just...

IS PYTHON a Replacement for a Linux Shell? Is it a SHell language?

25 Aug 2013 by AjithKp560_

Python is not a shell. It is programming language. You can program many exploits using this programming language. So, the exploits that will spawn control over remote computers are also called as "SHELLS". Like this you can program exploits using perl, ruby, php like programming languages......

Please identify what this is intended to do

22 Feb 2017 by Albert Holguin

So, that doesn't appear to be valid bash code, starting a line with "58..62" is invalid, as it's not a command or shortcut... but if it's pseudo-code I'd guess it's attempting to run nslookup on a range of IP addresses.This gets you the same thing that your code appears to be attempting to...

Proper Bash Scripting on Windows: Associate SH Scripts to WSL (Windows 10) (Enable drag-and-drop to .sh) (+other Linux Executables)

28 Jun 2018 by Alex the Green Apple

Guide to properly set up Windows 10 for Shell scripting

Redirecting shell output via grep

23 Nov 2016 by Alexander Mills

I have a node.js script and I want both stdout and stderr to go to a log file, but I want to pass the stdout and stderr through grep first.This works: node a.js > a.log 2>&1But this doesn't:node a.js | grep "error" > a.log 2>&1It doesn't output anything to the file, but worse...

How to send an email with attachment using cygwin

24 Jun 2014 by Alexander24

I am trying to send an email with attachment remotely using cywing. The code below works perfectly with a plain text email. I have tried a few methods a found on the internet, but they don't work. Please can anyone help me#!/bin/bashecho This is a testing email | email -s "hi"...

How to run an script using cron in Windows 7 using cygwin?

26 Jun 2014 by Alexander24

I have installed all the dependencies in cron. My scripts are working properly, and also I have tested cron which I think works properly as well. However, I would like to set up a task to run a script file. Here is where I need help, please can anyone provide me some help? Here is cron code: My...

How to connect mongodb and catch mondodb connection error using try-catch in git bash?

17 May 2021 by Aman Parmar

a)I want to connect to MongoDB b)Surround Mondodb with try-catch block c)catch exceptions. I have to use git to get the latest branch. I have assumed that the below command will run before MongoDB connection: source setenv.sh source...

How do I redirect the welcome message while SSH to a linux server to a file ?

19 Sep 2014 by Anand Shaw

Hi,I want to store welcome message to a file when I do SSH to a unix server.Please tell me how can I redirect the message to a file.Thanks.

How to find the password expiry information without /etc/shadow file access ?

19 Sep 2014 by Anand Shaw

Hi,As a user to a linux server, I don't have access to shadow file. But I want to find out password expiry details for my username.Thanks.

Linux run process in BG

21 Oct 2013 by Andreas Gieriet

The task sounds non-sense to me.Running a process in background means:the stell starts that command as background process (fire and forget) and immediately continues with the next command.I.e. this completes instantly:sleep 100 &echo "done"You may observe the sleep process by...

Need to access a server to copy data.

29 Dec 2011 by Be Yourself

I have two solaris servers having IP10.10.36.20(A) and 10.90.33.22(B)The server B is exposed to internet but server A is intranet server.I want to transfer some files from server B to server A but in order to do this I have to bypass the firewall installed in server A which can raise...

Scheduling a job in server

20 Jan 2012 by Be Yourself

I have a java class to be scheduled in the server to be run in a specified time .Can any one help me how to schedule a execution of a java class in server .I have tried goggling for it but I didn't find any fruitful results.The server is apache server.

server-management

Run a jar file on server.

29 Jan 2012 by Be Yourself

I have a jar file named main.jar with the Manifest entry as:Main-Class : tss.ReportClass-Path : lib/Classes12.jar lib/xlist.jar lib/axis2.jarnow I have the lib folder in the same directory as that of the jar file and I am able to run the jar also from command prompt by using "java -jar"...

Combine Multiple git commits into a Single commit in GIT using Squash

3 Aug 2019 by Benktesh Sharma

How to combine multiple git commits into a single commit in GIT using Squash

Scheduled crontab to echo a basic command to /home/user. The job is not showing in the user's home folder?

16 May 2021 by bob_smith_0101

To familiarise myself with crontab, I scheduled an echo command to run and create a file in a user's home folder (report.txt) and also in a second user's account. Example: * * * * * echo "command" >> /home/user/report.txt * * * * * echo...

Git Bisection Utility Wrapper Script for Memory Corruption Bugs

16 Jul 2020 by cassert24

A single-script git bisection utility wrapper for memory corruption bugs

Append key to json object with jq

1 Aug 2020 by cats n dogs

Hello, i have a list of keys on which i iterate and each time they current is not found in the json object i want to append it to the object. What I have tried: Here is what i have done so far https://jqplay.org/s/risDCfxm5j The problem is...

How to Change Text Color in a Linux Terminal

7 Apr 2022 by Chris Maunder

A quick overview and a simple bash script to make your script output a little more lively

How do I rewrite this bash command line into zsh?

4 Feb 2013 by coffeenet

HiI need to input this command, it is written in bash, but I my terminal is zsh. How do I rewrite it?ssh username@rserver.com -L 127.0.0.1:8888:*:11111Thanx!

Regex pattern for lowercase alphanumeric, hyphen and dot

10 Sep 2023 by ColdSnus

I am currently working on a bash script and I need a regex that allows only lowercase alphanumeric, hyphen and dots. Please help me! What I have tried: So far, I have tried this: "[a-z-]+"

Create a Parrot Drone Web Control Panel: Sound On/Off, Lights On/Off

17 Aug 2017 by D4rkTrick

How to create a web control panel for sound and lights for your Parrot drone (Wi-fi connected)

[BASH] speed test via CLI w/ no addon

18 Jul 2021 by Daniel Pfeffer

Working backwards from the numbers that you give, we get 1 block = 100Mb / 22355 = 4473 bits. This looks close to a 4 Kb (i.e. 512 byte) block size. Adding various header and framing bits make the correspondence even better. I expect that you...

Effective Shell Part 1: Navigating the Command Line

11 Jun 2017 by Dave Kerr

Text in the command line can quickly get unwieldy. Here are some simple tricks you can use to navigate in the command line.

Effective Shell Part 2: Become a Clipboard Gymnast

25 Mar 2018 by Dave Kerr

In this article, I'll show you how you can use the shell as an efficient tool to compliment how you use the clipboard.

A Portable and Magic-free Way to Open Pull Requests from the Command Line

10 Oct 2018 by Dave Kerr

A portable and magic-free way to open Pull Requests from the command line

List only common parent directories for files

12 Sep 2014 by DaveAuld

I think this answers your question.http://stackoverflow.com/questions/12340846/bash-shell-script-to-find-the-closest-parent-directory-of-several-files[^]

How to start 2 applications with .desktop short cut file in linux ?

11 Feb 2022 by DoingWork

I want to start 2 applications with one shortcut. One application is GUI based while other is shell based (Terminal=true in .desktop file). What I have tried: For this goal, I created a file name **Starter** having following script in this...

How can I loop through consecutive file directories?

24 Nov 2022 by domestic ivy

i am in directory a. Under directory a there is a fixed directory b. There are d{091....099} directories under the b directory. There are also different *.gz files under this d directory. I need to extract data from these files (filenames) and...

How do I Show a Bash Result in HTML

11 Nov 2014 by Dominic Burford

There may be other ways of doing this, but you could consider using the XMLHttpRequest object as in the example below.xmlhttp=new XMLHttpRequest();xmlhttp.open("GET","temperaure.txt",false);xmlhttp.send();document.getElementById("temperature").innerHTML=xmlhttp.responseText;

How do I match emails with only top level domain using regex

22 Mar 2022 by DrewMc

I've been trying to write a regex pattern to only match top level domain using bash i.e person@email.com or person1@email.uk would be valid but person@email.co.uk would be invalid. What I have tried: grep -E -o...

regular-expression

Does WebHDFS support HAR?

29 Jan 2015 by fausthsu

Does WebHDFS support HAR access?I'm programming a remote control script, and I've searched a lot and made some test, seems it does not?thanks.

Is possible in zenity add combo box and list togeter?

21 Mar 2023 by GiulioRig

hi is possible insert inside of gui created in zenity the combobox for choice what i want ? What I have tried: i try to code but not work #!/bin/bash # Definisce la dimensione della finestra width=800 height=900 # Array contenente le opzioni...

Is possible in zenity add combo box and list togeter?

21 Mar 2023 by GiulioRig

look help nanual in shell and you see : zenity --help-all Usage: zenity [OPTION…] Help Options: -h, --help Show help options --help-all Show all help options ...

Sqlite inb bash if insert data, tell me not have table

12 Feb 2024 by GiulioRig

Hi why my code tell me Error: in prepare, no such table: BinanceCex i have the table i am sure maybe i did do some error in script bash ? #!/bin/bash set -x #RunProgram() { # Aggiungi qui la logica per eseguire il programma #} #...

How can remove comma in bash

18 Feb 2024 by GiulioRig

hi guys i have a code this code print this https://api.binance.com/api/v3/ticker?symbols=["BTCUSDT","BNBBTC",]&windowSize=1d&type=full i want remove the last comma inside a square parentesis i want somthing like this ...

Bash return error in cile for ...why ?

23 Feb 2024 by GiulioRig

hi guys i have a function in bash , for me is correct but i dontknow why continue to tell me ./BBSW.sh: 17: Syntax error: Bad for loop variable anyone can confirm me if is ok or not? urlencode() { local string="$1" local...

Build in bash curl post call

3 Mar 2024 by GiulioRig

Hi , i try to modify this example api-usage-examples/V5_demo/api_demo/Encryption_HMAC.sh at master · bybit-exchange/api-usage-examples · GitHub[^] wiht this code _ByBit_PlaceOrder1() { # Read Bybit API keys and set them as global variables...

Python bash create signature not correct

31 Mar 2024 by GiulioRig

Hi i have this script in bash for huobi exchange (https://www.htx.com/en-us/opend/newApiPages/?id=419[^]) #!/bin/bash # Set API keys access_key="" secret_key="" host="api.huobi.pro" path="/v1/account/accounts" method="GET" # Generates a...

Bash: compare two number read from txt file

26 Jul 2022 by Goutham GSK

Hello Everyone, I am trying to read a file which contains numbers(Floats and integers) line by line, I am able to read the line correctly and it works fine, but when I try to compare it with a different number I am failing at that point ...

Need to access a server to copy data.

31 Dec 2011 by Graham Breach

Do a search for "ssh certificate based authentication" - as long as it is enabled, key-based authentication should allow you to use scp between trusted hosts.

Using Locate Databases on MacOS Unix

14 Oct 2020 by h_wiedey

Using file name databases on MacOS Unix

How to generate number and overwrite in file ?

5 Aug 2023 by headshot9x

Hi, I have log files coming from other servers, the content in file something wrong and I want to rewrite content before move file. I'm not familiar with shell script in linux, but I tried research and learn around. So, I have idea about, but so...

Bash Variable and Sed Help

8 May 2012 by Hex01

Instead of:ENG=$ENG | sed 's/ //g'try:ENG=`echo $ENG | sed 's/ //g'`Note that this uses back-quotes after the equal sign and the last character.

c# execute DOS command and store the results

7 Oct 2014 by Jaxam

In a command prompt I can type "ipconfig" and a list of internet information will appears. I want to do this in a C# console program. Basically, I want to run the C# program and I want to read and store everything that is given in "c:\ipconfig"."ipconfig" is a String in which that I can set...

I tried to compile this script but I always get the following error “command not found”?

19 Apr 2017 by jena_m

i tried running this scriptkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk ! What I have tried:

Redirecting shell output via grep

23 Nov 2016 by Jochen Arndt

Just redirect stderr to stdout before piping to grep:node a.js 2>&1 | grep "error" > a.log When using bash, there is a shorthand for the above:node a.js |& grep "error" > a.log With |&, stdout and stderr of the first command are piped to the second. See the Bash Reference Manual[^].

Error in bash scripting linux for terminal based game

22 Dec 2016 by Jochen Arndt

I did not checked all the code but this looks suspicious:if [ "$score" -ge 1 ]; then Number=$(($RANDOM % 52)) Gokkaart=${KAARTEN[$Number]} oldNumber=$Number echo "De kaart is $Gokkaart2"fiYou are assigning a new random number to $Number. So the old number is no longer...

Need to convert small bash script to PHP

4 Apr 2018 by Jochen Arndt

When you need to include a double quote within a string, you have to escape it as described at PHP: Strings - Manual[^]: exec("sudo tshark -n -r $filename -R rtp -R \"rtp.ssrc == $ssrc\" -T fields -e rtp.payload | tee payloads"); The for loop requires understanding the bash commands: BASH...

What does scan -a 0 -C command will do?

12 Jun 2018 by Jochen Arndt

It is never a good idea to execute an application when not knwowing what it does (especially by passing command line options). Do such at least as normal user and not as root. With many applications there is a man page installed too. So you should first try if such is available: man scan and...

Basic Git Command Line Reference for Windows Users

18 Sep 2012 by John Atten

CodeProjectWhile there are GUI interfaces available for GIT (some good, some bad), familiarity with at least the basics of git’s command line interface can only enhance your ability to use the tool to maximum effectiveness.

Execute script from bash and get all function + variable name and values

21 Dec 2020 by Juljan Haka

Hello, i am kind of a junior developer so please forgive my ignorance. I am using Ubuntu LTS 20.04 at the moment. I have a python script with 4 functions in it. Each function has more than 3 variables. At least on of those variables in each...

[BASH] problem writing script

18 Jan 2020 by k5054

Pay attention to your spaces and capital letters What you want is something more like #!/bin/bash find "$1" -name "*.$2" -exec stat -c "% N % u% U" {} \; I have not tried this to find out if it does what you want, or to find out if the call to stat is right, but note the lack of spaces and...

How to get file size in byte using wc -C

30 May 2020 by k5054

There is no option not to print the file name, you'll need to use a pipe as phil.o showed. Some other options: #use cat cat my_file | wc -c #use cut wc -c my_file | cut -f1 -d ' ' #you could also use stat, if you don't want to use a pipe ...

[Shell script] parse through text file, search on matching values

24 Mar 2021 by k5054

Problem one seems to be a mix of UTF-8 and ASCII quotation marks (") in your code -- assuming you did a cut&paste from your source. Next, your logic is slightly off. You break the while loop and report no matches on the first non-match. One...

Automate C program standard inputs with bash

20 Apr 2021 by k5054

When you use a Here Document, the shell effectively does echo -e "1\n2\n" > /tmp/tempname ./test

[BASH] remove a portion of a string and store it I a new variable

13 Oct 2021 by k5054

You're really close: date2=$(echo $date1 | cut -f3 -d\ ) should do the trick. In this case we're telling cut to return the 3rd field (-f3 flag), with field separator space, (-d\ flag ). Note that for the -d flag you need to make the space...

If a curl request returns a json array, how do I get the number of elements inside that array (.sh/bash script)

6 Jan 2022 by k5054

Parsing JSON using standard tools (grep, awk, sed, etc), is probably more difficult than you imagine. You really need a JSON parser. This is discussed here: bash - Parsing JSON with Unix tools - Stack Overflow[^] Looking at the home page for ...

How do I add octal to integer

19 Jan 2022 by k5054

What you have posted here make no sense. As written, this line result=(( "$result" + "$pathname" )) , seems to be trying to accumulate something to result, but since you have for pathname in CWFiles/**/*.txt then pathname will hold a value...

Bash: compare two number read from txt file

26 Jul 2022 by k5054

You can use normal comparison operators inside a bash [[ ]] expresion. Try if [[ $line > 30 ]]; then ... fi

Updating bash Variables in a Loop

8 Mar 2023 by k5054

How to update a bash variable inside a loop when reading from command output

Sqlite inb bash if insert data, tell me not have table

8 Feb 2024 by k5054

Are you sure you have the BinanceCex table in the SQLite file ConfigDB.db? Check your db file $[k5054@localhost]$ sqlite3 ConfigDB.db .schema CREATE TABLE BinanceCex( id int, ... ); CREATE TABLE StampExchange( ... ); $[k5054@localhost]$ Are...

Python bash create signature not correct

31 Mar 2024 by k5054

You bash script already seems to print out the URL it sends in send_request(), but I can't see that your python script does the same. The first thing I would do, is get the python script to print out the URL and compare. If you want to see...

How to send automatic email for diff results in git bash

26 Jan 2021 by Khairi Khaled

• In my work, network element configuration files downloaded automatically in hourly basis to the 3rd party server, I have configured the folder where the files downloaded on it as local Repo. • Recently, git schedule created to check the...

What does : mean in the variable assignment bash?

4 Mar 2018 by khorshidpour

what does : mean in the beginning of variable assignment? : ${var:=value} What I have tried: what is different between these two in bash script? : ${var:=value} ${var:=value}

Compare two files then add below same line number

21 Mar 2022 by Luc Pattyn

Maybe this article is a good starting point: LPTextFileDiff: another textfile compare utility.[^] :)

Linux bash provide arguments to pdfunite

22 May 2018 by lukeer

Hi forum, a bash script I wrote behaves unexpectedly (read: "There's a bug in it.") and I just don't get it. Say there's that variable PAGES which contains " page0.pdf page1.pdf page2.pdf". And there is $1 which contains "result.pdf". I want to merge all those single-page pdf files into one...

How to get file size in byte using wc -C

30 May 2020 by M.S.S.E

when I use the command to get the file size in bye using wc -c the command return two values, the size in byte and the file name, ex: the output for wc -c my_file is 322 my_file I need to get only the first value to use it if condition, and I...

How to get file size in byte using wc -C

30 May 2020 by M.S.S.E

I did it using this : wc -c

How to send an email with attachment using cygwin

24 Jun 2014 by Maciej Los

Have a look here: Sending Emails with Attachments from the Command Line Revisited [^]As per i understand you need to install 2 packages (Email and MTA). After configuration, you'll be able to send email with attachment(s).

c# execute DOS command and store the results

7 Oct 2014 by Maciej Los

Why to torture yourself by sending some command to the 'command prompt'?Isn't better to use .net classes, objects?Please, see:Network Programming in the .NET Framework[^]NetworkInterface Class[^]Quite often used alternative is WMI[^], which provides functionality to get information...

Need to strip the beginning ./ characters in a function

23 Jul 2016 by magic_owl

for f in ./*.mp3; do sox "$f" "${f%%.mp3}processed.mp3" silence 1 0.02 1% -1 0.02 1%; doneThis is a script I'm using to process audio files. The problem is that it keeps going in a loop, processing the new audio files as well. I'd like to fix this by having the output go in a subfolder, so I...

I can't verify that the environment variable “SECRET_KEY_BASE” is properly set in linux with this command: $ printenv | grep SECRET_KEY_BASE

27 Jul 2021 by Marchan4

My ruby version is 2.6.6, my mysql version is 8.0.23, my mysql2 version is 0.5.3, my bundler version is 2.2.21, my rails version is 5.0.7.2, and my Xcode version is 12.5. I use macOS Big Sur(version 11.4) and the text editor "Atom". I'm...

If a curl request returns a json array, how do I get the number of elements inside that array (.sh/bash script)

6 Jan 2022 by mc96

So far my bash script is as follows: #!/bin/sh sessionnumber=0 curl --data '{"command":"listsessions","transaction":"123","adminsecret":"secret"}' -H "Content-Type: application/json" http://127.0.0.1:8088/admin This successfully returns the...

Jq - assign variable from jq output of length of array

11 Jan 2022 by mc96

I have a bash shell script that performs a cURL command, and gets the raw output of an array inside the json array. I can also successfully echo the number of elements in the array Why can I not assign the amount of elements inside the array to...

Jq - assign variable from jq output of length of array

11 Jan 2022 by mc96

SOLVED! realoutput=$(echo $output | jq '. | length') echo "OK|janusSessions=$realoutput" Produces: OK|janusSessions=2

IS PYTHON a Replacement for a Linux Shell? Is it a SHell language?

24 Aug 2013 by Mehdi Gholam

Python is a programming language : http://en.wikipedia.org/wiki/Python_%28programming_language%29[^]However it can be used within a shell.

How Can I Check My Application Is Running In Ios Simulator Using Bash Script

21 Jan 2014 by Member 10066562

i am working in iPad application automation. Now i am facing a problem that how can i check that my application is running that is automate in iOS Simulator(iPad/iOS 6.1) using bash script. My OS is Mac OS X (Version: 10.7.5). Please help.

How can I separate some repeated patterns in a row into multiple rows using bash script?

12 Oct 2013 by Member 10272533

I have some problem with bash script.I've got a string which has some repeated patterns like this.1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 ...Each fields is separated by tab key.I want it to look like this...1 2 3 41 2 3 41 2 3 4...How can I solve this problem using bash...

How to curl_multi_perform from /usr/bin/curl process in bash on OS X?

2 Nov 2015 by Member 10308543

Hey guys,I am working on an Illustrator extension project which uses HTML5 for UI and JavaScript for implementing functionalities.Apart from HTML5 I am also using JQuery and AngularJS.Illustrator SDK has an special feature where you can execute a process using it.I need to pack a PDF...

How do I sed to retrieve URLs within single quotes?

10 Nov 2014 by Member 10440553

How do I sed to retrieve URLs within single quotes?Currently, it can only retrieve URLs which starts with HTTP/HTTPS.urls=$(sed -ne 's/.*\(http[^"]*\).*/\1/p' 's/.*\(https[^"]*\).*/\1/p' /url/to/path)

How to get the 4th to the last value in a file?

8 Sep 2014 by Member 10946242

Hi,I would like to ask how to get the 4th to the last value in a file. I don't have problem on extracting a value from the beginning of the file using this sed (e.g. sed -n 'p' filename) only have a trouble when parsing value using the last part of the file.

regular-expression

How do I Show a Bash Result in HTML

11 Nov 2014 by Member 11224763

Hello,I have a project where I have to show the current temperature on a website.I already created a script in bash that "echo" me the current temperature, but I don't really know how to display that result on my website.Sincerly,Yvan MLS

Linux replacement command by index

26 May 2015 by Member 11612625

stuck. very stuck. why? because i can't figure out a replacement command that works by giving an indexwhat i'm doing now is: rpl "oldstring" "newstring" "filename"ofcourse this changes all the search results. what i need is something like this: rpl "index" "newstring"...

Printing out the statistics of commands in terminal - bash (no awk or sed)

28 Apr 2015 by Member 11649315

Tried finding an answer on stackoverflow but can't. All answers were with awk and sed which I'm not allowed to use! So once again, I ask you to help me.Basically I need to write a script that prints out the history of all used commands in the linux terminal. The commands are saved in a file...

Using Bzip2 to compress web pages

23 Sep 2015 by Member 12006086

In JavaScript, what code do I need to implement Bzip2 in a browser in order to compress web pages on the fly?How can I also change the compression level of Bzip2 in source code?

training of lbp classifiers sometimes succeds and other times not

11 Nov 2015 by Member 12131950

I have the following directory strucure: project root/ negatives/ the negatives files ngest/ 00palmo/ 1510 positives files 01pugno/ 1431 positive files 02indice/ 1073 positive files 03v/ ...

How to overwrite variable value in linux

16 May 2016 by Member 12485314

i want to overwrite value of variable s1 from "abc" to ---> [more /home/mohsin/Desktop/system_usage_bash_file | grep TIME | awk 'BEGIN {FS=","} {print $3}']but when i echo i get "abc" on both echos,means it is not overwrittenWhat I have tried:#!/bin/bashs1="abc"s2="USED"echo...

I am having trouble getting bash to match my regex

29 Sep 2016 by Member 12767270

I am learning bash scripting and I am trying to understand how regex works with bash. In my simple program, I have a file of various different lines but want to match a simple int pair with the format of the two numbers separated by a comma and a space as so: 123, 123. I also want to match the...

Please help me.....i am facing an error with my bash code

3 Oct 2016 by Member 12773538

I have a bash script to login into one of my storage device and execute couple of commands and saves output into one text file. Here's the code.plink.exe -ssh root@10.10.10.10 -pw password1 "storage-controllers" >> Cluster1_%date:~-4,4%%date:~-7,2%%date:~-10,2%.txtecho. >>...

Error in bash scripting linux for terminal based game

22 Dec 2016 by Member 12917493

Hello everybody,I have been working with Debian for a couple of months for school and because it seems really handy to work with. but now I want to make a game for in the terminal. A Higher or Lower card game (also for school but I wanted to make it before I was given this task). You have to...

Please identify what this is intended to do

22 Feb 2017 by Member 13017232

58..62 | % { nslookup 192.168.1."$_"}I'm confused as to what the two successive periods represent. I understand the pipe and nslookup command but not the rest.Thanks.What I have tried:58..62 | % { nslookup 192.168.1."$_"}I'm confused as to what the two successive periods...

Create just a window frame

4 May 2018 by Member 13811640

Hello, I am new to Xlib, so don't know pretty much all of it. :D I would like to create a window frame across the screen, just that, just a window frame (something like the border of the marquee when you select with the mouse). I like that window frame to show up on the screen, let's say in...

What does scan -a 0 -C command will do?

12 Jun 2018 by Member 13820729

i wonder what does this command do, can any one know what is it about? What I have tried: i have tried it on mac bash terminal but i cant find out what it does

Script to batch-convert dirs of either fn.webloc or fn.url hyperlinks to lists using http://[…]/fn.htm format?

6 Nov 2022 by Member 14032085

I have a folder with 1700+ hyperlinks using the proprietary .webloc format created by the anti-standardizing Apple OS. I want to run a script which converts the lines to the standard format so that they will also run when clicked on a Unix, Linux, or TrueOS/FreeBSD/OpenBSD system. Search engines...

[BASH] problem writing script

18 Jan 2020 by Member 14720175

Hello, I'm a beginner in programming and I'm having trouble writing a script. Write a script with two parameters: file name mask and directory name. The script's task is to display a list of file names from the given directory, matching the given mask together with the name of the owner and his...

[Shell script] CURL download speed yields inaccurate and inconsistent results

25 Jan 2022 by Member 15513062

I tried to increase the no. of records per run and computed for records/sec == throughput, ofcourse given the time_total. And expect curl to increase throughput per run, which explains the increase per run, in this case. When i plot Bytes...