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Top Forums UNIX for Dummies Questions & Answers Redirect from Variable to command line?? Post 302069583 by ugh on Monday 27th of March 2006 04:33:50 PM
Old 03-27-2006
Bug

This script takes a data file and allows you to remove the columns you dont want.

runme.sh datafile.txt "|" 2,4

This will ouput only data that would fall under 2nd and 4th column

filename=$1
dell=$2
keep=$3

echo $keep | awk -F"," '{ORS=" " }{OFS=""}{gtw=","} {for(i=1;i <=NF;i++){ print
"$",$i,gtw; if((i+1) == NF) gtw="" } }' | read output

i="awk -F\"$dell\" 'BEGIN{OFS=FS}{print $output}' $filename"

echo $i>temp.sh
chmod 700 temp.sh
temp.sh
rm temp.sh

Its just alot easier building the awk command this way.
Thank you very much vgersh99...
 

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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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