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Full Discussion: command line arg issue with awk
Top Forums Shell Programming and Scripting command line arg issue with awk Post 302198118 by elthox on Thursday 22nd of May 2008 08:33:41 AM
Old 05-22-2008
Quote:
Originally Posted by divzz
Hi friends,

I am trying to pass input from command line and trying to print that column values. (FYI: I am using ksh) My code goes like this...

#!/bin/sh
column=$1
awk '{print $'$column'}'

I execute using command like this --> ls -l | file_name parameter

Hope I am clear with my problem. The error I am getting is something like this,
Syntax Error The source line is 3.
The error context is
awk >>> ' <<<
awk: 0602-500 Quitting The source line is 3.

I tried even removing quotes, but in vain. please help me.
Thanks in advance,
Divya
#!/bin/sh
column=$1
awk -v x=$column '{print $x}'


Hope this works
 

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LEARN ABOUT MOJAVE

colrm

COLRM(1)						    BSD General Commands Manual 						  COLRM(1)

NAME

     colrm -- remove columns from a file

SYNOPSIS

     colrm [start [stop]]

DESCRIPTION

     The colrm utility removes selected columns from the lines of a file.  A column is defined as a single character in a line.  Input is read
     from the standard input.  Output is written to the standard output.

     If only the start column is specified, columns numbered less than the start column will be written.  If both start and stop columns are spec-
     ified, columns numbered less than the start column or greater than the stop column will be written.  Column numbering starts with one, not
     zero.

     Tab characters increment the column count to the next multiple of eight.  Backspace characters decrement the column count by one.

ENVIRONMENT

     The LANG, LC_ALL and LC_CTYPE environment variables affect the execution of colrm as described in environ(7).

EXIT STATUS

     The colrm utility exits 0 on success, and >0 if an error occurs.

SEE ALSO

     awk(1), column(1), cut(1), paste(1)

HISTORY

     The colrm command appeared in 3.0BSD.

BSD
								  August 4, 2004							       BSD
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