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02-20-2001 06:58 PM
02-20-2001 06:58 PM
line 1:abc def gef
line 2:ab cdef hig
How could grep search for the word "ab" only (on line 2) and ignore "abc" (on line 1)?
Thanks.
Solved! Go to Solution.
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02-20-2001 07:48 PM
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02-20-2001 07:57 PM
02-20-2001 07:57 PM
Re: help on grep command
So the following:
grep -x ab testfile
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02-20-2001 08:48 PM
02-20-2001 08:48 PM
Re: help on grep command
According to the man page for grep(1), the -x option matches the entire line, not a whitespace delimited word. Sorry,
--Bruce
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02-20-2001 10:49 PM
02-20-2001 10:49 PM
Re: help on grep command
Victor's suggestion is good, but a more general approach would be with using regular expressions character classes:
(see man 5 regexp for details)
echo "ab c def ghi" | grep -e "[[:space:]]ab[[:space:]]|^ab[[:space:]]|[[:space:]]ab$"
The [:space:] character class matches all characters producing white space on the displayed text
Best regards,
Dan
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02-21-2001 08:21 AM
02-21-2001 08:21 AM