osx - Full path to an awk script from within the script itself -

i have awk script, i.e., ascii file executable in linux in first line is:

#!/usr/bin/awk -f

i execute myscript this, if i'm in same directory:

> ./myscript  afile

or this, if i'm in different directory:

> pwd /some_weird_path > /full_path/myscript   afile

how can have access "/full_path/" within awk script itself? i've tried following without success:

argv[0]  => /usr/bin/awk argv[1]  => afile environ["pwd"] => some_weird_path

ideas?

this ugly seems work gnu awk on linux.

begin {         getline cmdline <("/proc/"procinfo["pid"]"/cmdline")         nf=split(cmdline,fields,/\0/)         print fields[3]       }

this uglier, should work on system ps implementation, long neither path awk nor path script include whitespace characters:

begin {         "ps -p "procinfo["pid"]" -ocommand=" | getline cmdline         nf=split(cmdline,fields," ")         print fields[3]       }

ymmv.

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