I have simple shell script that I run as cron job every hour of the day. I would like to make it a daemon that runs far more frequently like every 30 seconds or so, but I have never made daemon before. How can I do this?
-Sam (7 Replies)
i have a small problem getting a batxh shell script to run in shell
this is the code
the problem seems to be centered around the ffmpeg command, something maybe to do with the ' ' wrapping around the vhook part command
this is a strange problem , if i take the ffmpeg command and... (1 Reply)
hi,
i have a script that runs on bash and would like to run it on a machine that has csh and bash. the default setting on that machine is csh. i dont want to change my code to run it with a csh shell. is there any way i can run the script (written in bash) on this machine? in other words is there... (3 Replies)
I wrote a very simple script that matches combinations of alphabetic characters (1-5). I want to use it to test CPU speeds of different hardware/platforms. The problem is that on multi-core/processor systems, only one CPU is being utilized to execute the script. Is there a way to change that?... (16 Replies)
Hello
I'm having a problem running a TCL script in my new OpenSolaris OS. When I go to the directory containing my script called 'Install' (using the gnome terminal), it doesn't seem to be able to find it even though it lists it i.e. if I type "Inst" and hit tab to complete the word, it... (11 Replies)
Is there a way to run some code in a C-shell script by different shell, like bash?
I have that situation.
I have prepared and perfectly workable bash-skript that now I have to execute under C-shell script, divide it on steps and without creating a new files (with the bash-code parts.)
For... (6 Replies)
Hi,shell script is scheduled from maestro and we want mastero should not run shell script so can we edit the shell script so that it should run.ThanksPrakash (5 Replies)
Hi,
I have one query that is suppose if I have a script that pick up some files from source folder and put it into destination folder , and I want this script to run after every 1 hour, to make it configurable as per that I have options like crontab and nohup but when I test this script I have to... (2 Replies)
Hi All,
I have few bash shell scripts which depends on one Ksh shell script. When i run bash shell scripts, it shows error as bad interpretor : ksh no such bad file or directory.
When i tried to install ksh shell, it is not downloading too.
If I remove !/bin/ksh command in starting line of the... (14 Replies)
Discussion started by: Karthik03
14 Replies
LEARN ABOUT CENTOS
pidof
PIDOF(8) Linux System Administrator's Manual PIDOF(8)NAME
pidof -- find the process ID of a running program.
SYNOPSIS
pidof [-s] [-c] [-n] [-x] [-m] [-o omitpid[,omitpid..]] [-o omitpid[,omitpid..]..] program [program..]
DESCRIPTION
Pidof finds the process id's (pids) of the named programs. It prints those id's on the standard output. This program is on some systems
used in run-level change scripts, especially when the system has a System-V like rc structure. In that case these scripts are located in
/etc/rc?.d, where ? is the runlevel. If the system has a start-stop-daemon (8) program that should be used instead.
OPTIONS -s Single shot - this instructs the program to only return one pid.
-c Only return process ids that are running with the same root directory. This option is ignored for non-root users, as they will be
unable to check the current root directory of processes they do not own.
-n Avoid stat(2) system function call on all binaries which are located on network based file systems like NFS. Instead of using this
option the the variable PIDOF_NETFS may be set and exported.
-x Scripts too - this causes the program to also return process id's of shells running the named scripts.
-o omitpid
Tells pidof to omit processes with that process id. The special pid %PPID can be used to name the parent process of the pidof pro-
gram, in other words the calling shell or shell script.
-m When used with -o, will also omit any processes that have the same argv[0] and argv[1] as any explicitly omitted process ids. This
can be used to avoid multiple shell scripts concurrently calling pidof returning each other's pids.
EXIT STATUS
0 At least one program was found with the requested name.
1 No program was found with the requested name.
NOTES
pidof is actually the same program as killall5; the program behaves according to the name under which it is called.
When pidof is invoked with a full pathname to the program it should find the pid of, it is reasonably safe. Otherwise it is possible that
it returns pids of running programs that happen to have the same name as the program you're after but are actually other programs. Note
that that the executable name of running processes is calculated with readlink(2), so symbolic links to executables will also match.
SEE ALSO shutdown(8), init(8), halt(8), reboot(8), killall5(8)AUTHOR
Miquel van Smoorenburg, miquels@cistron.nl
01 Sep 1998 PIDOF(8)