While loop with Multiple variables

Shell Programming and Scripting
1

Hi ,
I am trying to write a script in kshell with while loop ,its like
count=1
count_cmp=1

    while [ $\{count\} -le $\{file_length\} && $\{count_cmp\} -le $\{count\} ]; do

            tail -$count  tempfile | head -1 > tempstring

.......
done
However i get CIF.sh: line 33: [: missing `]'
I have checked thetrailing spaces , not sure what is wrong here

2

Sorry
i even tried with
count=1
count_cmp=1

    while [ $\{count\} -le $\{file_length\} && $\{count_cmp\} -le $\{count\} ]

do
-----
done
still the same error

3

Hi Amit,

Before answering your question, I have a suggestion for you. If you post the scripts please use the code tags available.

Try this,

while [ ${count} -le ${file_length} ] && [ ${count_cmp} -le ${count} ];

Each condition in the while loop or if loop should be marked with [ ].

Regards,
Chella

4

Thanks a lot Chella , it works !!:slight_smile:

5

Another way :

while [ ${count} -le ${file_length} -a ${count_cmp} -le ${count} ]

Jean-Pierre.