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remove a path from PATH environment variable


 
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# 8  
Old 10-23-2009
Code:
echo $PATH |awk -F":" -v v="$rmv" '{for(i=1;i<=NF;i++)if($i==v){$i=""}}1' OFS=":"

on Solaris use nawk
# 9  
Old 10-23-2009
Is there any script which will work on all the machines?

On Solaris INTEL machine, the previous script behaves in below manner

Code:
$echo $PATH
/usr/local/bin:/usr/bin:test/rmve:/usr/games
$PATH=$(echo $PATH| sed -e 's!'$rmv'!!' -e 's/::/:/')
syntax error: `testvar=$' unexpected
$echo $PATH| sed -e 's!'$rmv'!!' -e 's/::/:/'
/usr/local/bin:/usr/bin:/usr/games

The script works just fine, but it fails to reassign PATH
# 10  
Old 10-23-2009
Quote:
Originally Posted by madhu84
I need a shell script which will remove path (test/rmve) from PATH (/usr/local/bin:/usr/bin:test/rmve:/usr/games) and update the PATH as /usr/local/bin:/usr/bin:/usr/games

Code:
rmpath() #@ remove directory or directories from $PATH
{        #@ USAGE: rmpath dir ...
    for p in "$@"
    do
      p=${p%"${p##*[!/]}"} ## remove trailing slashes
      case $PATH in
          "$p":*) PATH=${PATH#$p:} ;; ## at beginning of PATH
          *:"$p") PATH=${PATH%:$p} ;; ## at end of PATH
          *:"$p":*) PATH=${PATH%":$p"*}${PATH##*"$p"} ;;
      esac
    done
    export PATH
}

This User Gave Thanks to cfajohnson For This Post:

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