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Full Discussion: variable= 'cat file|wc -l' String problems
Top Forums Shell Programming and Scripting variable= 'cat file|wc -l' String problems Post 77439 by Santiago on Friday 8th of July 2005 10:22:10 AM
Old 07-08-2005
variable= 'cat file|wc -l' String problems
Hi,
does anybody knows about wc -l, how to transform it inot a just number?
this script ALWAYS executes the command3!!, However, the value of BMU_RUNNING is 1

case $BMU_RUNNING in
*0) command1
;;

*1) command 2;;


*)command 3;;
esac
The variable is
BMU_RUNNING=`more channels.dat|grep BMU |grep RUNNING|wc -l`
and it is equal to 1
echo $BMU_RUNNING is 1
but with set -x
+ + more channels.dat
+ grep BMU
+ grep RUNNING
+ wc -l
BMU_RUNNING= 1

thanks for your help
Santiago
 

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LEARN ABOUT BSD

zgrep

ZGREP(1)						      General Commands Manual							  ZGREP(1)

NAME

       zgrep - search possibly compressed files for a regular expression

SYNOPSIS

       zgrep [ grep_options ] [ -e ] pattern filename...

DESCRIPTION

       Zgrep  invokes  grep  on  compressed  or  gzipped  files.   These  grep	options  will  cause  zgrep  to  terminate  with  an  error  code:
       (-[drRzZ]|--di*|--exc*|--inc*|--rec*|--nu*).  All other options specified are passed directly to grep.  If no file is specified,  then  the
       standard input is decompressed if necessary and fed to grep.  Otherwise the given files are uncompressed if necessary and fed to grep.

       If the GREP environment variable is set, zgrep uses it as the grep program to be invoked.

EXIT CODE

       2 - An option that is not supported was specified.

AUTHOR

       Charles Levert (charles@comm.polymtl.ca)

SEE ALSO

       grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1)

																	  ZGREP(1)
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