Thanks rovf,
That would mostly work I think but beside the language barrier, I don't like relying on error messages that could vary from one implementation to another. But that's the best answer so far.
Thanks MadeInGermany,
My problem is that on some systems, there are some processes that I just don't see as a normal user (not only no permission, really don't see) so I cannot rely on ps. Take the following example:
It looks like process 1 does not exists but kill and sudo prove otherwise:
I wasn't sure if I should post it here of in the Shell Script category, but I figured it was definitely a newbie question.
I'm trying to write a script that will check for the existence of a specific file (or for any files within the directory) and then take specific actions. I've removed all... (2 Replies)
Hey all,
I have total new with shell scripting so I don't know if what I need to do even possible, here it is...for a duration of time (say...1 hour) I need to check for the existence of a particular file, if it exists then I will invoke a java program or I will continue to check until a)... (2 Replies)
Hello,
I have this process app.fcgi and a directory containing images. I'd like to ensure that only app.cgi can access those images and more generally that folder.Thanks! (1 Reply)
Hi
I want to check a particular file is available or not. But i know only the pattern of that file sat AB1234*.txt.I need the latest file name and it ll be used in the script. How can i do this using ls -ltr command.
Thanks,
LathishSundar V (2 Replies)
Hi,
I want to make a bash script which is running like :
1.sh http://www. google.com
and check if the url does exist printing a message.
I want to save the source code of this page in a file.
Could you help me ? (4 Replies)
Hi
I'm using the below command in shell script to check for file exists in the path
if
.....
fi
path and test are variables
path and the file exists but the commands inside if condition is executed (! operator used)
Is the above way of checking for file existence is correct?
... (4 Replies)
Hope someone can help me on this
In a directory ,files are dynamically generated.I need a script to do the following
if files are not received for more than 2 hours or if the received file is empty
then do something
How can I put that in a script.Thank you
eg. in cd /dir_name the... (13 Replies)
I'm on AIX. I have triggered an infinite loop process (to keep looking for input file availability for further process). At present only I can kill the process.
In case my colleague wants to kill the process for any reason, how do I provide permission to others to kill the process?
Currently... (3 Replies)
Discussion started by: krishmaths
3 Replies
LEARN ABOUT PHP
timeout
TIMEOUT(1) User Commands TIMEOUT(1)NAME
timeout - run a command with a time limit
SYNOPSIS
timeout [OPTION] DURATION COMMAND [ARG]...
timeout [OPTION]
DESCRIPTION
Start COMMAND, and kill it if still running after DURATION.
Mandatory arguments to long options are mandatory for short options too.
--preserve-status
exit with the same status as COMMAND, even when the
command times out
--foreground
when not running timeout directly from a shell prompt,
allow COMMAND to read from the TTY and get TTY signals; in this mode, children of COMMAND will not be timed out
-k, --kill-after=DURATION
also send a KILL signal if COMMAND is still running
this long after the initial signal was sent
-s, --signal=SIGNAL
specify the signal to be sent on timeout;
SIGNAL may be a name like 'HUP' or a number; see 'kill -l' for a list of signals
--help
display this help and exit
--version
output version information and exit
DURATION is a floating point number with an optional suffix: 's' for seconds (the default), 'm' for minutes, 'h' for hours or 'd' for days.
If the command times out, and --preserve-status is not set, then exit with status 124. Otherwise, exit with the status of COMMAND. If no
signal is specified, send the TERM signal upon timeout. The TERM signal kills any process that does not block or catch that signal. It
may be necessary to use the KILL (9) signal, since this signal cannot be caught, in which case the exit status is 128+9 rather than 124.
BUGS
Some platforms don't currently support timeouts beyond the year 2038.
AUTHOR
Written by Padraig Brady.
REPORTING BUGS
GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
Report timeout translation bugs to <http://translationproject.org/team/>
COPYRIGHT
Copyright (C) 2017 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 kill(1)
Full documentation at: <http://www.gnu.org/software/coreutils/timeout>
or available locally via: info '(coreutils) timeout invocation'
GNU coreutils 8.28 January 2018 TIMEOUT(1)