sequential SSH command execution not working in Ubuntu/Bash
- by kumar
My requirement is I will have a set of commands that needs to be executed in a text file. My Shell script has to read each command, execute and store the results in a separate file.
Here is the snippet which does the above requirement.
while read command
do
echo 'Command :' $command >> "$OUTPUT_FILE"
redirect_pos=`expr index "$command" '>>'`
if [ `expr index "$command" '>>'` != 0 ];then
redirect_fn "$redirect_pos" "$command";
else
$command
state=$?
if [ $state != 0 ];then
echo "command failed." >> "$OUTPUT_FILE"
else
echo "executed successfully." >> "$OUTPUT_FILE"
fi
fi
echo >> "$OUTPUT_FILE"
done < "$INPUT_FILE"
Sample Commands.txt will be like this ...
tar -rvf /var/tmp/logs.tar -C /var/tmp/ Commands_log.txt
gzip /var/tmp/logs.tar
rm -f /var/tmp/list.txt
This is working fine for commands which needs to be executed in local machine. But When I am trying to execute the following ssh commands only the 1st command getting executed.
Here are the some of the ssh commands added in my text file.
ssh uname@hostname1 tar -rvf /var/tmp/logs.tar -C /var/tmp/ Commands_log.txt
ssh uname@hostname2 gzip /var/tmp/logs.tar
ssh .. etc
When I am executing this in cli it is working fine. Could anybody help me in this?
