Write pid and command name to a txt file while executing a bash script

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# 1  
Old 09-10-2013
Write pid and command name to a txt file while executing a bash script

Hi All,

Just have a requirement, I am executing a bash shell script, my requirement is to catch the pid and job name to a txt file in the same directory, is there anyway to do it? please help me out.


---------- Post updated at 08:42 AM ---------- Previous update was at 08:25 AM ----------

PS: this shell script is executed every 10 seconds in the same shell and I want to immediately capture the pid as soon as this job starts.

2) I have been out of touch with unix for a while so please let me know if the question is incomplete.

# 2  
Old 09-10-2013
Is this what your trying to do:
$ echo "My pid is: $$"
My pid is: 4340

# 3  
Old 09-12-2013
Current command name is stored in $0
As Spacebar says above, pid is $$

To have it log this to a file, do something like:
echo "Task: $0 (Pid: $$)" >> logfile.txt

or if you are feeling fancy and want to know when it ran:
echo "`date` $0 (Pid: $$)" >> logfile.txt

If you need just the last run instead of the log gorwing forever, use a single > instead of >>
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