I know that by using the "-A NUM" switch I can print specific number of trailing lines after each match. I am just wondering if it’s possible to print trailing lines until a specific word is found after each match. e.g. When I search for “Word A” I want to see the line containing “Word A” and also the lines after it until the one containing “Word D”.
context:
Word A Word B Word C Word D Word E Word F
command:
grep -A10 'Word A'
I need this output:
Word A Word B Word C Word D
Answers:
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Method 1
It seems that you want to print lines between ‘Word A‘ and ‘Word D‘ (inclusive). I suggest you to use sed instead of grep. It lets you to edit a range of input stream which starts and ends with patterns you want. You should just tell sed to print all lines in range and no other lines:
sed -n -e '/Word A/,/Word D/ p' file
Method 2
why not use awk ?
awk '/Word A/,/Word D/' filename
Method 3
perl -lne 'print if /Word A/ .. /Word D/' file
or
cat file | perl -lne 'print if /Word A/ .. /Word D/'
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