It is starting webserver and also stop webserver, both are valid arguments so that's why it i not showing anything. Actually my motive of writing script is that if httpd process is present in memory or not, if not then start the apache process but main problem is that i am not able to grep httpd process because its very difficult to get apache process looks like that.
Hi Guys,
I was just wondering if anybody can help me with this problem.
OK, how we can get a value back from PL/SQL Script (not stored procedure/function)
See the below example: (for example aaa.sh)
#!/bin/ksh
VALUE=`sqlplus -s user/password@test_id <<EOF
@xxx.sq
EOF`
echo $VALUE
... (7 Replies)
I have a unix AIX script that ftps some files (mput, mget). How can I check (in the script) to see if the ftp failed? After the ftp I move the files out of the directory but do not want to move files that have not been sent. The script will run as a cron job. (2 Replies)
hi all
my system is linux red hat
i have a script that runs some object .
the object return some code to the system
i see the code by writing echo $?
i want to ask in the script if $? equals 14
how shell is do that in the script
thanks (3 Replies)
Hi All,
Can anyone please let me know the syntax / how to pick up the Return Code ( RC) from the mailx command and return it to SAS uisng 'system()' function and '${?}'.
I am in a process to send the mail automatically with an attachment to bulk users. I have used 'Mailx' and 'Unencode'... (0 Replies)
I would like to know what means this error and how to fix it
Command 'rm -f -r "0yfOYy-0008Nq-2j-32233-K"'
failed with return code 1 and error message
Thank you (3 Replies)
I need to try and get the error return code from the tar command when being used as follows:
tar tvf tarfile 2>logfile | tee -f outputfile
ErrorStat="$?"
I would like to save the error return code from the tar command in a variable,
howver, the example above it is saving the 'tee' error... (7 Replies)
Hi,
We are getting the following error code while connection remote server using sftp command.
sftp user@serrver
Warning: child process (/opt/ssh2/bin/ssh2) exited with code 126.
pls Advise. (2 Replies)
Hello,
I am woring on a script where I am getting strange situation.This script actually fetch the source code and tar that code and send to NAS location.This code resides in MKS tool...and we are fetching the source code on checkpoint label basis and script is working fine.First it synch the... (0 Replies)
Hello everyone,
In a script, I am using SCP to copy huge file to another host.
scp -qrp hugefile.txt /opt/perf05/tmp
However, we have noticed that this file is not being copied. I am suspecting this was because we are losing connection while copying this... (1 Reply)
Hi,
I have a shell script which executes some sql. When the shell script executes the sql's logging is shown on the console. I need to grep some data from this output shown on console. So I do the following
hive -f load.adj.hql 2>&1 | tee c.txt
echo $?
A=`grep num_rows c.txt`
$? will... (1 Reply)
Discussion started by: wahi80
1 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)