10-11-2018
echo to etc file
Hi there.
I would like to add a mount line to a cluster of mini servers, quite a few of them. I need to do this remotely with pssh.
The problem being ssh sudo echo snd ssh sudo fprint both produce permission denied. I know sudo echo works locally, so it's quite rightly prevented over ssh. This isn't a password problem as I have copied shared keys.
So, the question is, how can I do this quite wrongly using ssh? (!)
I can only use pssh, I could use a script if I can take an ip list from file, or I could use python. I cannot add any software to the nodes. Or at least I really don't want to.
Many thanks.
------ Post updated at 07:44 PM ------
Just thought I'd try pssh <ops> "sudo chmod 0777 /etc/fstab" worked fine, then I could echo the mount line.
So, there you go!
10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
Hi All,
I am unable to kill a process using kill command. I am using HP-UX system. I have tried with kill -9 and i have root privilages.
How can i terminate this daemon ? ? ?
Regards,
Vijay Hegde (3 Replies)
Discussion started by: VijayHegde
3 Replies
2. Programming
Hi all
i have simple c program , when i wish to kill the app
im using kill(0,-9) , but it seams this command don't do any thing and the program.
just ignore it .
what im doing wrong here ?
im using HP-UX ia64
Thanks (9 Replies)
Discussion started by: umen
9 Replies
3. AIX
Hi, I'm trying to get this script to work on an AIX 5.3 box, I couldn't get pgrep for AIX, I also realize that ps works differently on the IBM boxes. Could anybody just give me the specifics of a work around for my problem, I'll adjust the whole script:
#!/bin/bash
# applabs.com
#to do:
#... (3 Replies)
Discussion started by: thebytegrill
3 Replies
4. Programming
Hi Everyone,
I have a strange behaviour
In my c program i use this line:
int retval = system("pgrep encoder");
while i expect retval to contain 0,1,2,3
i get 256.
did i do something wrong?
thanks,
Alex (2 Replies)
Discussion started by: alex889
2 Replies
5. UNIX for Dummies Questions & Answers
I'm trying to figure out how to use pgrep to pull the arguments of a process.
Given:
root 308 1 0 00:00 ? 00:00:00 /bin/sh /some/random/path/somescript.sh -flag /another/path/blahI can get the pid (308) using this command:
pgrep shHowever, what if I wanted to pull by "somescript.sh"... (4 Replies)
Discussion started by: mrwatkin
4 Replies
6. HP-UX
Hi! I need to get PID of some particular process and I wonder if I can use pgrep tool for this purpose. The problem is that pgrep doesn't perform pattern matching on the whole command line, even if I use -f key. Parsing output of ps command is not quite convenient... Also deamon, which PID I need... (2 Replies)
Discussion started by: Sapfeer
2 Replies
7. Shell Programming and Scripting
Good afternoon
I need to KILL a process in a single command sentence, for example:
kill -9 `ps -aef | grep 'CAL255.4ge' | grep -v grep | awk '{print $2}'`
That sentence Kills the process ID corresponding to the program CAL255.4ge.
However it is possible that the same program... (6 Replies)
Discussion started by: enriquegm82
6 Replies
8. Shell Programming and Scripting
I have setup SSH keys . Trying to grep to get PID of remote jvm's .
this is what am doing
ssh -q testuser1@myhost.com 'PID1=pgrep -fl testapp1|awk "{print $1}";PID2=pgrep -fl testapp2|awk "{print $1}" '
echo $PID1, $PID2
it throws error"sh: -fl: command not found"
---------- Post updated... (1 Reply)
Discussion started by: kondagadu
1 Replies
9. Shell Programming and Scripting
I would like to find all of the PIDs of processes which are not associated with a terminal and started by CRON.
When I do the ps aux | less command, I see in the TTY field a lot of processes with ? character
I would like to get those processes ID, is there a way to do that with pgrep?
... (1 Reply)
Discussion started by: ASF Studio
1 Replies
10. Shell Programming and Scripting
I am searching for a process that should be up and running. Im using the following command
ps -ef | grep elasticsearch
to get
elastic+ 1673 1 0 Jan29 ? 05:08:56 /bin/java -Xms4g -Xmx4g -Djava.awt.headless=true -XX:+UseParNewGC -XX:+UseConcMarkSweepGC... (1 Reply)
Discussion started by: Junaid Subhani
1 Replies
PGREP(1) Linux User's Manual PGREP(1)
NAME
pgrep, pkill - look up or signal processes based on name and other attributes
SYNOPSIS
pgrep [-cflvx] [-d delimiter] [-n|-o] [-P ppid,...] [-g pgrp,...] [-s sid,...] [-u euid,...] [-U uid,...] [-G gid,...] [-t term,...] [pat-
tern]
pkill [-signal] [-fvx] [-n|-o] [-P ppid,...] [-g pgrp,...] [-s sid,...] [-u euid,...] [-U uid,...] [-G gid,...] [-t term,...] [pattern]
DESCRIPTION
pgrep looks through the currently running processes and lists the process IDs which matches the selection criteria to stdout. All the cri-
teria have to match. For example,
$ pgrep -u root sshd
will only list the processes called sshd AND owned by root. On the other hand,
$ pgrep -u root,daemon
will list the processes owned by root OR daemon.
pkill will send the specified signal (by default SIGTERM) to each process instead of listing them on stdout.
OPTIONS
-c Suppress normal output; instead print a count of matching processes.
-d delimiter
Sets the string used to delimit each process ID in the output (by default a newline). (pgrep only.)
-f The pattern is normally only matched against the process name. When -f is set, the full command line is used.
-g pgrp,...
Only match processes in the process group IDs listed. Process group 0 is translated into pgrep's or pkill's own process group.
-G gid,...
Only match processes whose real group ID is listed. Either the numerical or symbolical value may be used.
-l List the process name as well as the process ID. (pgrep only.)
-n Select only the newest (most recently started) of the matching processes.
-o Select only the oldest (least recently started) of the matching processes.
-P ppid,...
Only match processes whose parent process ID is listed.
-s sid,...
Only match processes whose process session ID is listed. Session ID 0 is translated into pgrep's or pkill's own session ID.
-t term,...
Only match processes whose controlling terminal is listed. The terminal name should be specified without the "/dev/" prefix.
-u euid,...
Only match processes whose effective user ID is listed. Either the numerical or symbolical value may be used.
-U uid,...
Only match processes whose real user ID is listed. Either the numerical or symbolical value may be used.
-v Negates the matching.
-x Only match processes whose name (or command line if -f is specified) exactly match the pattern.
-signal
Defines the signal to send to each matched process. Either the numeric or the symbolic signal name can be used. (pkill only.)
OPERANDS
pattern
Specifies an Extended Regular Expression for matching against the process names or command lines.
EXAMPLES
Example 1: Find the process ID of the named daemon:
$ pgrep -u root named
Example 2: Make syslog reread its configuration file:
$ pkill -HUP syslogd
Example 3: Give detailed information on all xterm processes:
$ ps -fp $(pgrep -d, -x xterm)
Example 4: Make all netscape processes run nicer:
$ renice +4 `pgrep netscape`
EXIT STATUS
0 One or more processes matched the criteria.
1 No processes matched.
2 Syntax error in the command line.
3 Fatal error: out of memory etc.
NOTES
The process name used for matching is limited to the 15 characters present in the output of /proc/pid/stat. Use the -f option to match
against the complete command line, /proc/pid/cmdline.
The running pgrep or pkill process will never report itself as a match.
BUGS
The options -n and -o and -v can not be combined. Let me know if you need to do this.
Defunct processes are reported.
SEE ALSO
ps(1), regex(7), signal(7), killall(1), skill(1), kill(1), kill(2)
STANDARDS
pkill and pgrep were introduced in Sun's Solaris 7. This implementation is fully compatible.
AUTHOR
Kjetil Torgrim Homme <kjetilho@ifi.uio.no>
Albert Cahalan <albert@users.sf.net> is the current maintainer of the procps package.
Please send bug reports to <procps-feedback@lists.sf.net>
Linux October 5, 2007 PGREP(1)