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Full Discussion: awk FS usage problem
Top Forums UNIX for Dummies Questions & Answers awk FS usage problem Post 302512276 by Dendany83 on Saturday 9th of April 2011 06:40:26 AM
Old 04-09-2011
Question awk FS usage problem
Hi All,

I have a question about the usage of FS in awk and i appreciate if you can help me sort out what i'm doing wrong.

I have a file with info ; separated and i just want to print the o/p of all fields ($1 -> $8) to the screen. As you can see it is very simple but i'm facing an error.

Below is the file (test.log) contents:

Code:
Board1;9a;60;36;60.0;60;0;0.0
Board2;96;60;35;58.3;55;0;0.0
Board3;92;60;60;100.0;60;60;100.0
Board4;8e;60;35;58.3;60;0;0.0
Board5;8a;60;35;58.3;60;0;0.0
Board6;86;60;36;60.0;60;0;0.0
Switch1;82;60;37;61.6;60;0;0.0
Switch2;84;60;37;61.6;60;0;0.0
Board9;88;60;37;61.6;60;0;0.0
Board10;8c;60;36;60.0;60;0;0.0
Board11;90;60;36;60.0;60;0;0.0
Board12;94;60;37;61.6;60;0;0.0
Board13;98;60;60;100.0;60;60;100.0
Board14;9c;60;60;100.0;60;60;100.0
SHMC;20;60;35;58.3;60;0;0.0
Alarm1;14;60;37;61.6;60;0;0.0
Alarm2;16;60;37;61.6;60;0;0.0
PEM1;c0;60;37;61.6;60;0;0.0
PEM2;c2;59;35;59.3;60;0;0.0
PEM3;c4;60;37;61.6;60;0;0.0
PEM4;c6;60;60;100.0;60;0;0.0
FAN1;c8;59;36;61.0;59;0;0.0
FAN2;ca;60;37;61.6;60;0;0.0
FAN3;cc;59;36;61.0;60;0;0.0
FAN4;ce;60;37;61.6;60;0;0.0

And here is the command i'm using just to print first field:

Code:
#awk -F ; '{print $1}' test.log

O/P:
Code:
-bash: {print $1}: command not found

Few more question, what if i want $1 o/p to have maximum of 10 characters long? what should i add to the command? when i should use printf instead of print?

Thanks in advance
 

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LEARN ABOUT OSX

perlio::via::symlink

symlink(3)						User Contributed Perl Documentation						symlink(3)

NAME

       PerlIO::via::symlink - PerlIO layers for create symlinks

SYNOPSIS

	open $fh, '>:via(symlink)', $fname;
	print $fh "link foobar";
	close $fh;

DESCRIPTION

       The PerlIO layer "symlink" allows you to create a symbolic link by writing to the file handle.

       You need to write C"link $name" to the file handle. If the format does not match, "close" will fail with EINVAL.

TEST COVERAGE

	----------------------------------- ------ ------ ------ ------ ------ ------
	File				      stmt branch   cond    sub   time	total
	----------------------------------- ------ ------ ------ ------ ------ ------
	blib/lib/PerlIO/via/symlink.pm	     100.0  100.0    n/a  100.0  100.0	100.0
	Total				     100.0  100.0    n/a  100.0  100.0	100.0
	----------------------------------- ------ ------ ------ ------ ------ ------

AUTHORS

       Chia-liang Kao <clkao@clkao.org>

COPYRIGHT

       Copyright 2004-2005 by Chia-liang Kao <clkao@clkao.org>.

       This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

       See <http://www.perl.com/perl/misc/Artistic.html>

perl v5.16.2							    2005-03-01								symlink(3)
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