CODEWITHSUNDEEP
bashshellcommand-linenohup
Andrew Steele
Andrew Steele

Reputation: 493

How can I write the command used to invoke nohup to its log file?

I am trying to run a command with nohup, for example

nohup python -u myscript.py --lots --of --options 1000 &> logfile.out

Is there any way to write the command as the first line of logfile.out? For example,

python -u myscript.py --lots --of --options 1000
Script running...
Script complete!

Upvotes: 0

Views: 189

Answers (2)

anubhava
anubhava

Reputation: 785058

You can use a function for this:

runbg() {
   out="$1"
   shift
   printf "%s\nScript Runinng...\n" "$*" > "$out"
   nohup "$@" &>> "$out" &
}

Then run it as:

runbg logfile.out python -u myscript.py --lots --of --options 1000

Upvotes: 0

heemayl
heemayl

Reputation: 42007

You can create a wrapper function nohup:

nohup () { echo "$@"; command nohup "$@" ;}

Now if you do:

nohup python -u myscript.py --lots --of --options 1000 &> logfile.out

you'll get the desired command line saved along with other regular STDOUT/STDERR on logfile.out.

Upvotes: 1

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