This is what I have right now in the bash script:
ps aux | grep glassfish | grep domain1 | gawk '{print $2}' | xargs kill -9
The problem with this is that if someone else is logged in and pulling something related to glassfish, it wil pull that PID as well. Thus resulting in killing the wrong PID.
So My question is how do I fix what I have to only pull the correct PID, and how do I rewrite it to pull the PID from the PID file that glassfish generates.
Edit the script that starts glassfish and place something like echo $$ > /path/to/PID-file (this can contain ~ for home directory or some other mechanism like $USER to make user specific) on the line immediately following the line starting the process. You can then kill the correct process using kill $(cat /path/to/PID-file).
ps aux | grep ^$USER | grep glassfish | grep domain1 | gawk '{print $2}' | xargs kill -9
Below i did mistake with ps switches, so above grep should be fine.
ah it is not working, ps could be use like this ps -ao pid,tty,comm -u $USER, this grep above should be fine ...
someone else is logged in ...
If so, add switch -u
ps aux -u $USER | grep glassfish | grep domain1 | gawk '{print $2}' | xargs kill -9
$USER is user name that will be selected and listed, by default should be already set in OS environment. Multiple users could be selected by comma ps aux -u root,$USER
Take a note: If there is no specific username in the system, ps will throw ERROR: User name does not exist.
Read man ps for more.
-u userlist Select by effective user ID (EUID) or name.
This selects the processes whose effective user name or ID is in userlist. The effective user ID describes the user whose
file access permissions are used by the process (see geteuid(2)).
Identical
to U and --user.
Related
does anyone know how I can pipe the results of ps -ef | grep ^$USER to wc -1
I already used ps -ef | grep ^$USER but know i want to pipe the command
As per my understanding of your question
you want all the running process from a particular user and pipe it to wc ( note its wc -l not -1)
so i used this
ps aux | grep ^$USER|wc -l
-a : Information for all processes associated with terminals.
-u : Information for processes in userlist.
-x : username (user running this command)
or this can also work
ps -u $USER|wc -l
for any commands if you want to know the details try man command in terminal for example man ps
shoutdown : sh shutdown.sh
or
killing tomcat
ps -eaf | grep tomcat
kill -9 number
which one is best?
The best way to shutdown tomact is by using shutdown script. But many people face issues with it and end up doing the second option that you mentioned.
Shutdown script works properly only if the scripts that will be touched during shutdown process are either :
owned by the user.
owned by the PRIMARY group of the user
this will not work if the user belongs in secondary groups.
Some other issues are mentioned here :
https://serverfault.com/questions/115867/tomcat-shudown-does-not-kill-process
In case you have to choose later one, you can use the below mentioned script to make it as a single command. Just put in inside a script and run it whenever you want to kill running tomcat.
#Finds the tomcat process id
ps aux | grep tomcat | grep JavaVirtualMachines | awk -F " " '{print $2}' > tomcatProcessID
#Kills the process id returned from above mentioned command.
kill -9 `cat tomcatProcessID` && tput setaf 3 && echo "Tomcat killed Successfully" ;rm -rf tomcatProcessID
#Not a mandatory command.
#Used to show all the remaining processes with 'tomcat' keyword in it.
#To inform on the console that the tomcat (running ess or indexer) is killed.
ps aux | grep tomcat | grep -v grep | grep -v killtomcat
Im trying to write a bash script and trying to take input from user and executing a kill command to stop a specific tomcat.
...
read user_input
if [ "$user_input" = "2" ]
then
ps -ef | grep "search-tomcat" |awk {'"'"'print $2'"'"'}| xargs kill -9
echo "Search Tomcat Shut Down"
fi
...
I have confirmed that the line
ps -ef | grep "search-tomcat"
works fine in script but:
ps -ef | grep "search-tomcat" |awk {'"'"'print $2'"'"'}
doesnt yield any results in script, but gives desired output in terminal, so there has to be some problem with awk command
xargs can be tricky - Try:
kill -9 $(ps -ef | awk '/search-tomcat/ {print $2}')
If you prefer using xargs then check man page for options for your target OS (i.e. xargs -n.)
Also noting that 'kill -9' is a non-graceful process exit mechanism (i.e. possible file corruption, other strangeness) so I suggest only using as a last resort...
:)
I want to check if a process is running or not. I've been trying by
ps -C /path/file
and get this response:
PID TTY TIME CMD
If I do
pgrep php
I get a list of php processes running, but only the PID.
Is there a possibility to
determine the PID of a file I specify (I want to type the file and get the PID)
get the filename if I type the PID
get all the running processes PIDs in a file to work with that in a later script
OS: Ubuntu 14.04 LTS
I've been looking for this since quite some time, tried all the possibilities I found on SO and else but just can't figure out how to do this best.
"Determine the PID of a file I specify."
lsof | grep <file> | awk '{print $2}'
"Get the filename if I type the PID."
lsof | grep <PID>
lsof | grep <PID> | awk '{print $NF}'
"Get all the running processes PIDs in a file to work with that in a later script."
ps x | awk '{print $1}' > pid-list.txt # PIDs of all processes run by current user
ps ax | awk '{print $1}' > pid-list.txt # PIDs of all processes run by all users
What about ps aux | grep <the-name-of-the-process>.
I'm running a script at the end of a Jenkins build to restart Tomcat. Tomcat's shutdown.sh script is widely known not to work all in many instances and so my script is supposed to capture the PID of the Tomcat process and then attempt to manually shut it down. Here is the command I'm using to capture the PID:
ps -ef | grep Bootstrap | grep -v grep | awk '{print $2}' > tomcat.pid
The output when manually runs retrieves the PID perfectly. During the Jenkins build I have to switch users to run the command. I'm using "su user -c 'commands'" like this:
su user -c "ps -ef | grep Bootstrap | grep -v grep | awk '{print $2}' > tomcat.pid"
Whenever I do this however, the "awk" portion doesn't seem to be working. Instead of just retrieving the PID, it's capturing the entire process information. Why is this? How can I fix the command?
The issue is that $2 is being processed by the original shell before being sent to the new user. Since the value of $2 in the shell is blank, the awk command at the target shell essentially becomes awk {print }. To fix it, you just escape the $2:
su user -c "pushd $TOMCAT_HOME;ps -ef | grep Bootstrap | grep -v grep | awk '{print \$2}' > $TOMCAT_HOME/bin/tomcat.pid"
Note that you want the $TOMCAT_HOME to be processed by the original shell so that it's value is set properly.
You don't need the pushd command as you can replace the awk command with:
cut -d\ -f2
Note: two 2 spaces between -d\ and -f2