Michelle Konzack said:
Am 2007-04-22 19:32:18, schrieb nicholas:
I've seen the same thing with tail -f, and it confuses me as well.
I look forward to an expert answer!
In this case, sed alone can handle the job, if you want to avoid perl:
tail -f mylog | sed -n '/smtg/s/end/notend/p'
tail -f mylog | sed -n '/smtg/,s/end/notend/p'
^
What is the comma supposed to do? It looks like the start of a range, but
there's no end to it. When I try it, sed complains:
$ tail -f mylog | sed -n '/smtg/,s/end/notend/p'
sed: -e expression #1, char 8: unexpected `,'
$ sed --version
GNU sed version 4.1.2
Copyright (C) 2003 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE,
to the extent permitted by law.
$
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