Can I use my own variables within awk and sed for example:
I've written a while loop with a counter $i and I want to use the value of $i within sed and awk to edit certain lines of text within a data file.

I want to use :
sed '1s/$/texthere/g' data.csv
Like this:
sed '$is/$/$age/g' data.csv
but it only displays the name of the variable not the value it contains.

$age is the result of a calculation created within the while loop that I would like to append to the end of each line.
Any help is greatly appreciated

Hi,

shell variables inside '...' are not expanded. You'll have to
use "...". Further use ${i}s instead of $is.

HTH Chris

Works great thank you very much

Hi ,

i used with success the sed command : ( in the date value the slash is protected by \ )

cat crontab-test|sed -e "s/Modifie le : 20\/06\/08/Modifie le : 11\/22\/33/g"

but when i want to put the values in variables

j_modif_old="20/06/08"
j_modif_new="11/22/33"

cat crontab-test|sed -e "s/Modifie le : ${j_modif_old}/Modifie le : ${j_modif_new}/g"

i have the following error :
sed: Function s/Modifie le : 20/06/08/Modifie le : 11/22/33/g cannot be parsed.

how can i do this , protecting the "/" when parsing ?

thanks in advance
Christian

Instead of using s/.../.../ try s^...^...^ or another character.

Thank you very very much !

bye
Christian