How to get the command line args passed to a running process on unix/linux systems?

Question

On SunOS there is pargs command that prints the command line arguments passed to the running process.

Is there is any similar command on other Unix env

Answer 1

There are several options:

ps -fp 
cat /proc//cmdline | sed -e "s/\x00/ /g"; echo

There is more info in /proc/ on Linux, just have a look.

On other Unixes things might be different. The ps command will work everywhere, the /proc stuff is OS specific. For example on AIX there is no cmdline in /proc.