Cheers Corona. I love how with Unix no matter how long and convoluted the command there is always a shorter, pithier way of expressing the same thing, that just depends on your knowledge level (or access to resources such as this forum).
---------- Post updated at 10:08 AM ---------- Previous update was at 10:05 AM ----------
Quote:
Originally Posted by CarloM
Incidentally, some versions of ps (e.g. GNU) have a -C option that let you search by command, e.g.
Cheers Carlo. Works fine.
Tried -C and it is an illegal argument is this particular flavour of unix.
Hi Everybody,
I want to create a shell script named as say "jip" and it is runned.
And i want that when i do ps + grep for the process than this jip should be shown as process.
Infact there might be process with name jip which is already running. (3 Replies)
Hello all,
I would be happy if any one could help me with a shell script that would determine all the processes running on a Unix server and post a mail if any of the process is not running or aborted.
Thanks in advance
Regards,
pradeep kulkarni.
:mad: (13 Replies)
please suggest me a way to write c program that takes pattern of the process and returns true or false
my case is i need to keep track of dhcpcd
dhcpcd -d eth1
so i tried popen("ps -ef | grep dhcpcd | grep eth1 | wc -l", "r");
but pipe is storing 1 or 2 when not running
and 2 or 3... (7 Replies)
I have been having some trouble trying to get some code working, so I was wondering...what system calls are required to execute a different program from an already running process? (1 Reply)
I have process1 running on one machine and generating some log file. Now another process which can be launched on any machine wants to know if process1 is running or not and also in case it is running it wants to stream the logs file generated by process1 on terminal from which process2 is... (2 Replies)
Hello All,
We are running a process in unix box. This is how we will do
1.our process name is Runprojectprocess <ID> configuration
2.We will be running upto 500 id at once. So we are populating a text file as Runprojectprocess 1 configuration to Runprojectprocess 500 configuration
3.... (2 Replies)
Hi Experts,
I am facing one problem here which is one process always stuck in running state which causes the other similar process to sleep state . This causes my system in hanged state.
On doing cat /proc/<pid>wchan showing the "__init_begin" in the output.
Can you please help me here... (0 Replies)
Hi Experts,
I am facing one problem here which is one process always stuck in running state which causes the other similar process to sleep state . This causes my system in hanged state.
On doing cat /proc/<pid>wchan showing the "__init_begin" in the output.
Can you please help me here... (1 Reply)
Hi Experts,
I am facing one problem here which is one process always stuck in running state which causes the other similar process to sleep state . This causes my system in hanged state.
On doing cat /proc/<pid>wchan showing the "__init_begin" in the output.
Can you please help me here... (6 Replies)
Team,
I have multiple batchjobs running in VM, if I do ps -ef |grep java or tomcat I am getting multiple process list.
How do I get my exact tomcat process running and that is unique? via shell script? (4 Replies)
Discussion started by: Ghanshyam Ratho
4 Replies
LEARN ABOUT CENTOS
truncate
TRUNCATE(1) User Commands TRUNCATE(1)NAME
truncate - shrink or extend the size of a file to the specified size
SYNOPSIS
truncate OPTION... FILE...
DESCRIPTION
Shrink or extend the size of each FILE to the specified size
A FILE argument that does not exist is created.
If a FILE is larger than the specified size, the extra data is lost. If a FILE is shorter, it is extended and the extended part (hole)
reads as zero bytes.
Mandatory arguments to long options are mandatory for short options too.
-c, --no-create
do not create any files
-o, --io-blocks
treat SIZE as number of IO blocks instead of bytes
-r, --reference=RFILE
base size on RFILE
-s, --size=SIZE
set or adjust the file size by SIZE bytes
--help display this help and exit
--version
output version information and exit
SIZE is an integer and optional unit (example: 10M is 10*1024*1024). Units are K, M, G, T, P, E, Z, Y (powers of 1024) or KB, MB, ...
(powers of 1000).
SIZE may also be prefixed by one of the following modifying characters: '+' extend by, '-' reduce by, '<' at most, '>' at least, '/' round
down to multiple of, '%' round up to multiple of.
GNU coreutils online help: <http://www.gnu.org/software/coreutils/> Report truncate translation bugs to <http://translationpro-
ject.org/team/>
AUTHOR
Written by Padraig Brady.
COPYRIGHT
Copyright (C) 2013 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSO dd(1), truncate(2), ftruncate(2)
The full documentation for truncate is maintained as a Texinfo manual. If the info and truncate programs are properly installed at your
site, the command
info coreutils 'truncate invocation'
should give you access to the complete manual.
GNU coreutils 8.22 June 2014 TRUNCATE(1)