Issue
I have a file with a certain line, let's say...
AAA BBB CCC
I need to replace that entire line, after finding it, so I did:
q1=`grep -Hnm 1 "AAA" FILE | cut -d : -f 2`
That outputs me the line number of the first occurrence (in q1), because it has more than one occurrence, now, here comes my problem... In a previous step I was using this sed to replace a certain line in the file:
sed -e '3s/.*/WHATEVER/' FILE
To replace (in the example, line 3) the full line with WHATEVER, but now if I try to use $q1 instead of the "3" indicating the line number it doesn't work:
sed -e '$q1s/.*/WHATEVER/' FILE
It's probably a stupid syntax mistake, any help is welcome; thanks in advance
Solution
Try:
sed -e "${q1}s/.*/WHATEVER/" FILE
Answered By - JNevill
