I tried running a script using nohup like,
nohup script.sh &
When I tried
ps -ef | grep "script.sh"
I couldn’t find it there except for the grep which is being run with that string as a parameter.
Am I doing it right?. Does this mean that the process has indeed finished execution? Thanks.
Advertisement
Answer
At the beginning of your shell script, write the PID to a file (for example, in /var/run). Then, you can just search for that PID to know if the process is done or not. You can get the PID of your shell script using the built-in $$
variable.
To record the PID, put at the top of your script:
echo $$ > /var/run/myscript.pid
Then, to check if it’s still running:
ps -p `cat /var/run/myscript.pid`
You might not be able to write into /var/run
as a normal user. If not, just use /tmp