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To see every process on the system using standard syntax:
ps -e
ps -ef
ps -eF
ps -ely

To see every process on the system using BSD syntax:
ps ax
ps axu

To print a process tree:
ps -ejH...

ps will display only your terminal processes currently running ..

If you go with -ef option then will display all. Hope it clears ..


$ tty
/dev/pts/34
$ ps
PID TTY TIME CMD
...

With some limitations.....

#!/bin/ksh
#

thisFILE="$(whence ${0})"
progName="${0##*/}"

myPID="$$"

FUSERout=$(fuser ${thisFILE} 2>/dev/null)
typeset -i numProc=$(echo...

Your question confuses me a little. But the short answer is:

Create a lock file. This file has one single entry, the pid of the process running your script. If the file is "blank" then no...

It returns any line which starts (^) with four consecutive numbers ([0-9][0-....]) in file messi which is in your current directory (.) (that is, ./messi).

As this isn't an HP-UX-specific...