Read statement not working in a script


 
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# 8  
Old 01-08-2010
tried running your code as directed by you.
seems like,
Code:
 
$ cat a
Run Pause
 
$ cat Pause
Suspend
 
$ cat 1.sh
#!/bin/bash
cat $1 | while read LINE
do
  arg=`echo $LINE | cut -f 1 -d' '`
  if [ $arg == 'Run' ]
    then
    cat $arg | while read LINE1
    do
        arg1=`echo $LINE1 | cut -f 1 -d' '`
        if [ $arg1 == 'Suspend' ]
           then
           sh halt.sh
        fi
    done
  fi
done
 
$ sh 1.sh a
cat: Run: No such file or directory

file named Run not found at 1st run
created a file: Run with content "Suspend"
Code:
$ echo Suspend > Run
 
$ cat Run
Suspend
 
$ sh 1.sh a
sh: halt.sh: No such file or directory

Created an empty halt.sh
Code:
$ touch halt.sh
 
$ sh 1.sh a

One thing i noticed in your code is

Code:
arg1= `echo $LINE1 | cut -f 1 -d' '`

There should not be any space inbetween.
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