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ilikeit
n00b
Joined: 06 Jun 2004
Posts: 28
Location: France (07)
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 Posted: Mon Oct 18, 2004 3:08 pm Post subject: help with scripting bash |
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hi i need help scripting my first script (an HLDS management script).
my problem is to put the pid of hlds in a variable. i used this command but i think there is a problem with affectation
| Code: | | HLDS_PID=ps aux|grep hlds_r|grep -v grep|gawk '{ print $2 }' |
returns error: aux: command not found.
i tried 'ps aux'|.. and "ps aux"|... but it dont seems to work
here is the full code:
| Code: | case $1 in
start)
HLDS_PID=ps aux|grep hlds_r|grep -v grep|gawk '{ print $2 }'
if [ $HLDS_PID ]
then
echo "Server Already running on PID: $HLDS_PID"
else
cd /home/hlds/hlds_l
./hlds_run -game cstrike -secure -port 27015 +maxplayers 16 +map de_dust2 &
echo "Server Started"
fi
;;
stop)
HLP=ps aux|grep hlds_r|grep -v grep|gawk '{ print $2 }'
kill -9 $HLP
echo "Server Stopped"
echo $HLP
;;
stats)
echo "PROC %MEM %CPU"
ps aux|grep hlds_|grep -v grep|gawk '{ print $2":"$3" "$4" by "$1}'
;;
update)
cd /home/hlds/hlds_l
./steam -command update -game cstrike -username ktaserv -password k76p455 remember_password
echo "Server updated"
;;
*)
echo "usage: $0 { start | stop | update | stats | clean }"
echo " "
echo " start : démarre le serveur"
echo " stop : tue le serveur"
echo " update : met le serveur a jour"
echo " stats : affiche les ressources "
echo " "
echo " script HLDS par kTa "
;;
esac
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dashnu
l33t
Joined: 21 Jul 2004
Posts: 703
Location: Casco Maine
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| Posted: Mon Oct 18, 2004 3:19 pm Post subject: |
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I am no scritping expert but a shot in the dark for ya. I think that you want to set the env variable HLDS_PID at the top of your script and not inside of your case statment. Im most likely wrong but worth a try..
**edit ps -aux may help too .
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Wedge_
Advocate
Joined: 08 Aug 2002
Posts: 3614
Location: Scotland
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| Posted: Mon Oct 18, 2004 3:23 pm Post subject: |
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Try placing the command in backquotes like this: | Code: | | HLDS_PID=`ps aux|grep hlds_r|grep -v grep|gawk '{ print $2 }'` |
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The Earth is the cradle of the mind, but we cannot live forever in a cradle - Konstantin E. Tsiolkovsky
Gentoo Radeon FAQ |
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Nate_S
Guru
Joined: 18 Mar 2004
Posts: 414
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| Posted: Mon Oct 18, 2004 10:46 pm Post subject: |
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I too was going to say backquotes, but I was beaten to it.
backquotes execute the command inside them, and give the output to be used in a command.
for example
uname -r
2.6.9-rc1-nitro4
ls /lib/modules/`uname -r`
build
kernel
[snip]
that's the same thing as ls /lib/modules/2.6.9-rc1-nitro4, but the same command will still work when I change kernels (will output 2.6.9-rc3-nitro1 or whatever)
-Nate |
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ilikeit
n00b
Joined: 06 Jun 2004
Posts: 28
Location: France (07)
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| Posted: Tue Oct 19, 2004 8:42 am Post subject: |
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okay thanks thats really what i was looking for!
when to use #!/bin/sh and #!/bin/bash ? i only find differences when using it but not scripiting (for know as far as it works for sh i leave /bin/sh).
thank u mates,cya
ps: for a beginner and with a small enough font, its really hard to make difference between ' and ` |
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Nate_S
Guru
Joined: 18 Mar 2004
Posts: 414
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| Posted: Tue Oct 19, 2004 5:58 pm Post subject: |
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It has to do with which shell you use to execute the script.
I'd leave it as /bin/bash, as that is likely your default shell, unless you have some reason for it to be /bin/sh.
-Nate |
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