UNIX for Dummies Questions & Answers

i have a problem on my bourne shell script. I want to read line by line and then stop when the line does not have letters or is an empty string. But i encounter an error at "while [ read line -a $stop -eq 0 ]". The error nessage is "test.sh: test: unknown operator line". Can anyone help me on this thanks

something like this,

Code:

#! /bin/zsh

while read line
do
if [ ${#line} -eq 0 ]
then
break
fi
echo $line
done < out

exit 0

Hi,

I have done the necessary changes for the code, pls check now, hope it should work now.

also u have used $count > 4, but u have initialized $count to 1
instead of using > u can use <= it will work, if u use > then script will hang, pls change it accordingly n then run the script

#!/bin/sh

counter=1
stop=0

read line < /export/home/admin/test.sh

while [ read line -a $stop -eq 0 ]

do

### If reached 5th or greater row, means we have reached the rows
### as input
if [ $counter -gt 4 -a $stop -eq 0 ]
then
executed=`echo $line | awk '{ print $1 }'`


### If reached 4th or greater row and it is blank, means we have reached
### the end of the daily reocrd
elif [ $counter -gt 4 -a "'$line'" = "" ]
then
stop=1
echo "End of line"
fi

### Increment row counter by 1
counter=`expr $counter + 1`


done