Dash script to replace text "false" with "TRUE"?

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I need help with a bash script modification. Currently, the script reads the values of file "Install.txt", (sample content):

TRUE 203
TRUE 301
TRUE 602
TRUE 603

The numbers correspond with the same number in file: "ExtraExt.sys", (sample content):

false Styles "Diary Thumbnails" #202
false Styles "My Border Style" #203
false Menus "My Menu" #301
false Decorations "Diary Decor" #501
false Modules "Control Pager Button" #601
false Modules "Dash To Dock" #602
false Modules "Desk Switch" #603

All lines are "false". The script removes the text "false" of the corresponding line that has the same number as in file "Install.txt". For example, TRUE 203 changes the line with #203.

false Styles "My Border Style" #203

to

Styles "My Border Style" #203

This was the sed solution:

search=$(awk 'BEGIN{OFS=ORS=""}{if(NR>1){print "|"}print $2;}' Install.txt)
sed -i -r "s/^false (.*#($search))$/\1/g" ExtraExt.sys

The solution to remove works fine.
This solution is to replace "false" with "TRUE" in the file "ExtInstaller.sh".

What I have tried:

I have tried different codes but cause errors, for example..

sed -i -r "s/^false/TRUE (.*#($search))$/\1/g" ExtInstaller.sh

Posted 10-Mar-22 1:36am

RasatPC

Updated 11-Mar-22 6:47am

v2

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Comments

Richard MacCutchan 10-Mar-22 11:02am

That script will replace "false" with TRUE #(203|301) or similar. I do not think you can do it with a simple sed script like that because the text you are trying to replace is not in the same position as the text found by the regex.

2 solutions

Solution 1

> @Richard MacCutchan: I do not think you can do it with simple sed...

I have this solution but it is too complex.

search=$(awk 'BEGIN{OFS=ORS=""}{if(NR>1){print "|"}print $2;}' Install.txt)
sed -r "s/^false (.*($search))$/\TRUE/g" ExtraExt.sys > Column1.txt

RESULT (Column1.txt):
false Styles "Diary Thumbnails" #202
TRUE
TRUE
false Decorations "Diary Decor" #501
false Modules "Control Pager Button" #601
TRUE
TRUE

Paste Column1.txt and ExtraExt.sys

paste <(awk '{print $1}' Column1.txt) \
      <(awk '{print $2, $3, $4, $5, $6}' ExtraExt.sys) > ExtInstaller.sh

RESULT (ExtInstaller.sh)

false	Styles "Diary Thumbnails" #202 
TRUE	Styles "My Border Style" #203
TRUE	Menus "My Menu" #301 
false	Decorations "Diary Decor" #501 
false	Modules "Control Pager Button" #601
TRUE	Modules "Dash To Dock" #602
TRUE	Modules "Desk Switch" #603

I hope there is a better solution. Any help is appreciated. Thank you.

Posted 10-Mar-22 9:10am

RasatPC

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RasatPC · Accepted Answer · 2022-03-11T06:47:00

Solution 2

I got one good solution.

awk '
    NR==FNR {a["#"$2] = $1; next}
    $NF in a {$1 = a[$NF]}
1' Install.txt ExtInstaller.sh

RESULT same as Solution 1.

Posted 11-Mar-22 6:47am

RasatPC