Check process running Status with PID


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# 1  
Check process running Status with PID

Good day

I am fairly new to Shell Scripting.

I want a script to check if a process is up by checking the process's PID and then return a value for when it's running which would be 0. If it isn't running it should give any other value that 0.

Any Help is appreciated

Regards
# 2  
Try:

Code:
ps -ef | grep -q process_name
echo $?   # will be 0 if found, or else non-zero value

# 3  
Hi

Thanks but it says

ps -ef | grep -q dsdm
grep: illegal option -- q
Usage: grep -hblcnsviw pattern file

FYI this is SUN OS

Regards
# 4  
Try:
Code:
ps -p $PID >&-

-or perhaps-
Code:
ps p $PID >&-

ps varies from system to system.
See what
Code:
man ps |grep -i pidlist

says

E.g.
Code:
PID=<nr>
if  ps -p $PID >&- ; then
  echo running
else
  echo not running
fi

# 5  
On Sun OS, you can use /usr/xpg4/bin/grep

From manuals in Sun OS
Quote:
NAME
grep - search a file for a pattern


/usr/bin/grep [-bchilnsvw] limited-regular-expression
[filename]...

/usr/xpg4/bin/grep [-E | -F] [-c | -l | -q] [-bhinsvwx] -e pattern_list...
[-f pattern_file]... [file]...
# 6  
Sorry for being such an idiot when it comes to this.


PID=<999999>
if ps -p $PID >&- ; then
echo running
else
echo not running
fi

When I run the above file it passes no matter what number i put into PID?


I basicaly need a batch file which our tool uses to execute on remote unix servers, which reads the output value of 0 or whatever.
# 7  
Oh I'm sorry with
Code:
PID=<nr>

I mean e.g.
Code:
PID=99999

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