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Add a line after last matched expression

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Top Forums UNIX for Advanced & Expert Users Add a line after last matched expression
# 15  
Old 08-26-2012
On OS X, adding a slash gives the error:
Code:
sed: 1: "14  a \My Network 192.1 ...": extra characters after \ at the end of a command

The standard says:
Code:
[1addr]a\
text	    Write text to standard output as described previously.

The following works, but it is now a two-liner instead of a one-liner:
Code:
sed "$(awk '/^ACL localnet/ {n=NR} END{print  n}' infile)  a \\
My Network 192.168.1.1" infile

Note that two backslashes are needed due to the shell's escape processing in double quoted strings.
# 16  
Old 08-30-2012
As a quick answer i would say :
Code:
sed + back references + sed commands

should be a good part of a working and simple.

I'll try to give you a more comprehensive answer if i found some time for that.

EDIT :

Sorry i just did not notice there were more than one page... Forget about this answer (some comprehensive answers had already been given.
Last edited by pierpier; 08-30-2012 at 06:53 PM.. Reason: i am a trou du cul !
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