The test
does not accept multiple values this way. Putting a set -x in the head of your script shows following:
I suggest to put it this way and do not test with -e if the files exist, as the loop will only run on the files that fit to the expansion anyway and sowith exist:
You will also get problems with these kind of cuts:
If you want a blank as delimeter, write it like this:
In the second line there are 2 blanks so cut will know that only the following blank right after the backslash is the delimeter, not the rest of the command too. I'd suggest you take the 1st solution as it is more clear to read.
And another more general thing is, that the programs or scripts that generate those pid files, should be able to clean them up themselves. It seems that there is something not working properly and that this script is just a workaround for the real problem.
question: for the below program
i just printed the value for pid, child pid and parent pid
why does it give me 6 values? i assume ppid is 28086
but can't figure out why there are 5 values printed instead of just two!
can someone comment on that!
#include<stdio.h>
#define DIM 8
int... (3 Replies)
1. If I use an software application(which connects to the database in the server) in my local pc, how many PID should be registered? Would there be PID for the session and another PID for socket connection?
2. I noticed (through netstat) that when I logged in using the my software application,... (1 Reply)
Many of my servers' /etc/group file have many userid's that does not exist in /etc/passwd file and they need to be deleted.
This happened due to manual manipulation of /etc/passwd files.
I need to do this for 40 servers.
Can anyone help me in achieving this? Even reducing a step or two will be... (6 Replies)
Hi Guys, I've got an system setup to act as an sftp server. I have a script that allows me to create chroot users running a custom shell within their home directory, it also creates a subdirectory that they can write into. I'm trying to write a script (that I can cron at a later date) that checks... (3 Replies)
Hi!
I would like to write a script which remove some files, all beginning with the same prefix :
prefix.1
doc/prefix.2
../prefix.3
etc.
So, I would create a file and chmod it executable. But I dont know how to pass a variable to a script. I would like to write something like
... (2 Replies)
Hello, beginner bash scripter here.. I was able to write a script and it works just fine. I'm just wondering if someone could chime in or any suggestions to make it cleaner or tighter so to speak. I have a disk to disk backup solution which uses 250GB disks. When one gets full I just po in a new... (7 Replies)
I found some posts describing how to completely clean out a mailbox in Unix/Linux. But I want to keep the 50 most recent messages. Any ideas out there?
Thanks! (3 Replies)
I needed some help with a script to fetch and delete all records prior to 3 days from now connecting to sybase from sunos. I wrote the following script but not working..can someone please guide me with my code.
Thanks
#!/bin/ksh
##GET PREVIOUS DAY DATE
dt=`date | awk... (3 Replies)
I need help with sed and awk scripts to search for Symmetrix ID=000090009902 and then grep its child disk devices associated to the dead paths and display them only, so that those dead devices can be removed.
test01:/#powermt display dev=all
Pseudo name=hdiskpower0
Symmetrix ID=000090009902... (0 Replies)
Hello,
I need some help from unix guru's here..I am looking for some advanced level script to cleanup the directories and files from specific directories under a file system..
The folders are created under /opt/modules
And under modules, there are multiple subfolders with the application... (6 Replies)
Discussion started by: mb525
6 Replies
LEARN ABOUT XFREE86
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] [-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.
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)