Grep Without Specific Strings – Display Lines Without Two Strings

greptext processing

For a large logging file, how do I display those lines without "success" or not terminated with "ok"?

Best Answer

To remove lines that contain either string, specifically with grep:

  • In one command, per jordanm's comment:

    grep -Ev 'success|ok$'

    or:

    grep -ve success -e 'ok$'

    or:

    grep -v 'success
ok$'

  • In two commands:

    grep -v success file | grep -v 'ok$'

Example:

$ cat file
success something else
success ok
just something else

$ grep -Ev 'success|ok$'
just something else
$ grep -v success file | grep -v 'ok$'
just something else

To remove lines that contain both strings, specifically with grep:

grep -v 'success.*ok$' file

Example:

$ cat file
success something else
success ok
just something else

$ grep -v 'success.*ok$' file
success something else
just something else
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