Sed variable not expanding

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# 1  
Old 02-15-2020
Sed variable not expanding

I have also some difficulty calling sed to change a word in a file.

sed -i 's/docTitl/Outline ${docTitl}/g' $ofln

Moderator's Comments:
Mod Comment Moved to new thread, since it is a different question

Last edited by Scrutinizer; 02-15-2020 at 01:04 PM..
# 2  
Old 02-15-2020
You need to use double quotes, rather than single ones in this case. Shell variables inside single quotes do not get expanded.
This User Gave Thanks to Scrutinizer For This Post:
# 3  
Old 02-15-2020
It's best to do so.
Take a variable in double quotes
and enclose the left and right parts of the script body
single quotes
's/docTitl/Outline '     "$docTitl"    '/g'

it turns out such a design
sed -i 's/docTitl/Outline '"$docTitl"'/g' $ofln

# 4  
Old 02-15-2020
Have noticed that using double quotes solves the problems.

sed -i "s/docTitl/Outline ${docTitl}/g" $ofln

Moderator's Comments:
Mod Comment merged from other thread

Last edited by Scrutinizer; 02-16-2020 at 06:32 AM..
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