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If and Case
Name: smart2 (by patelh) Date: April 10, 2007 at 12:09:32 Pacific OS: Windows XP CPU/Ram: 1024MB Product: Sony Vaio
Comment:
Can someone briefly explain to me what is occurring in this script?
#!/bin/csh if ($#argv < 2) then echo Not enough arguments echo usage: chx *.oldx nwx exit 0 endif mkdir /tmp/chx.$user set nwx="$argv[$#argv]" set oldx="$argv[1]:e" echo "are you sure you want to run chx?" switch ($<) case y: breaksw case yes: breaksw default: echo Nothing done exit 0 endsw set i=0 foreach file ( $argv ) @ i++ if ( $i == $#argv ) break cp $file /tmp/chx.$user/$file:r end set array = `ls /tmp/chx.$user` foreach file ( $array ) if ( -f $file.$nwx ) then echo destination file $file.$nwx exists. No action taken continue endif cp /tmp/chx.$user/$file $file.$nwx rm $file.$oldx end rm -r /tmp/chx.$user
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