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Old 12-17-2007, 07:01 AM   #1
uttam_h
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awk help


hi all,
this command is working fine in linux. it prints the total number of characters in each line of a file.

$gawk -F '' '{ print NF}' a.txt

But this is not working in solaris. Please suggest me a proper field separator for solaris awk/nawk.

Thanks and Regards,
uttam hoode
 
Old 12-17-2007, 07:31 AM   #2
colucix
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Why not...
Code:
awk '{print length}'
 
Old 12-17-2007, 07:36 AM   #3
uttam_h
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superb!!!! u rock
 
Old 12-17-2007, 09:32 AM   #4
tronayne
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The gawk utility is not quite the same as Solaris' oawk ("old" awk) or nawk ("new" awk); you probably ought to be using nawk on Solaris (because /bin/awk is owak -- try a long list to see if /bin/awk is the same size as /bin/owak or /bin/nawk to be sure). oawk is the default for compatibility with existing AWK programs in the system utilities.

The man page for nawk shows the syntax for -F ERE, the input field separator, which is different than the -F FS argument on owak.

The differences between gawk and nawk can be subtle but they can also cause you headaches -- best to stick with nawk syntax for both and try to avoid the "extensions" found in gawk.

If you're interested, the source code for nawk (along with a large number of standard System V utilities (the ones Solaris uses) are available at http://heirloom.sourceforge.net, nawk itself can be gotten from http://heirloom.sourceforge.net/tools.html either as part of a set of utilities or by itself with CVS (instructions on the page). You can compile and install nawk on your Linux system and you'll be able to write AWK programs that will port between Linux and Solaris.

Sorry if this is a bit beyond the scope of your question, but as time goes on you may find the above useful developing on both Linux and Solaris. Hope this helps some.
 
Old 12-17-2007, 10:40 PM   #5
uttam_h
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Thanks a lot tronayne
 
  


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