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Top Forums Shell Programming and Scripting using command line arguments as columns for pattern matching using awk Post 302332346 by invinclible0009 on Wednesday 8th of July 2009 07:48:48 PM
Old 07-08-2009
using command line arguments as columns for pattern matching using awk

Hi,

I wish to use a column, as inputted by a user from command line, for pattern matching.

awk file:

{
if($1 ~ /^8/)
{
print $0> "temp2.csv"
}
}

something like this, but i want '$1' to be any column as selected by the user from command line.

---------------------------
TRIED

{
if($ARGV[2] ~ /^8/)
{
print $0> "temp2.csv"
}
}

AND

{
if("'"$ARGV[2]"'" ~ /^8/)
{
print $0> "temp2.csv"
}
}

Neither works. They work for printing but do not help for pattern matching in 'if'.
 

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DBATBL(1)						      General Commands Manual							 DBATBL(1)

NAME
dbatbl - Manage on-disk reference tables for DB-ALLe SYNOPSIS
dbatbl [command] [options] [args...] DESCRIPTION
This tool allows to index and query the tables that are needed for normal functioning of DB-ALLe. dbatbl always requires a non-switch argument, that indicates what is the operation that should be performed: help Print a help summary. help manpage Print this manpage. cat tableid [tableid [...]] Output all the contents of a WMO B table.. grep string Output all the contents of the local B table whose description contains the given string.. expand table-entry [table-entry [...]] Describe a WMO B table entry or expand a WMO D table entry in its components.. expandcode varcode [varcode [...]] Expand the value of a packed variable code. index [options] filename index-id Index the contents of a table file. describe [options] what [values] Invoke the formatter to describe the given values. Supported so far are: "level ltype l1 l2", "trange pind p1 p2". OPTIONS
dbatbl follows the usual GNU command line syntax, with long options starting with two dashes (`-'). Option for command cat -?, --help print an help message -c, --csv output variables in CSV format Option for command grep -?, --help print an help message -c, --csv output variables in CSV format Option for command expand -?, --help print an help message Option for command expandcode -?, --help print an help message Option for command index -?, --help print an help message -t type, --type=type format of the table to index ('b', 'd', 'conv') Option for command describe -?, --help print an help message AUTHOR
dbatbl has been written by Enrico Zini <enrico@enricozini.com> for ARPA Emilia Romagna, Servizio Idrometeorologico. may 16, 2012 DBATBL(1)
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