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Top Forums UNIX for Dummies Questions & Answers best method of replacing multiple strings in multiple files - sed or awk? most simple preferred :) Post 302448657 by ygemici on Thursday 26th of August 2010 02:18:55 PM
Old 08-26-2010
Quote:
Originally Posted by scottn
Hi.

I would (should) expect the same behaviour on AIX as I get on Solaris (but don't have access to it to try now). Perhaps the GNU sed is just too nice to us? Smilie

This:
Code:
$ sed -n "$p" file1

is the same as
Code:
$ sed -n "" file1

if p is not set, as $p would be expanded by the shell (as a variable).

Try:
Code:
$ sed -n "$ p" file1

or
Code:
$ sed -n '$p' file1

(although it probably won't print anything on Solaris if there's no newline there!)
i think same you about gnu sed Smilie

but these are all the same and also return null
Code:
$ sed -n "$ p" file1

or
Code:
$ sed -n '$p' file1

for this we can use like this Smilie
Code:
# cat file1
1
2
3
4

trick this for me Smilie
Code:
 
/usr/xpg4/bin/sed -n '$p' file1 2>/dev/null
4

Code:
/usr/xpg4/bin/sed "" file1 2>/dev/null
1
2
3
4

or

Code:
/usr/xpg4/bin/sed '' file1 2>/dev/null
1
2
3
4

 

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