Programming :: Running Bash Script Using Java?
Aug 18, 2010how can i run a bash script script by using java in rhel5... then please reply....i have vary good project in my mind.....
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Programming :: Java Output Into Bash Variable?
Feb 20, 2011I have a bash script that calls a java class method. The method returns a string to the linux console when run independently. how can I assign the value from the java method to a variable in a bash script?running the script: java -cp /opt/my_dir/class.method [parameter]
output: my_string if added in a bash script:
read parameter
java -cp /opt/my_dir/class.method [parameter] | read the_output
echo $the_output
the above doesnt work, I also tried unsuccessfully:
the_output=java -cp /opt/my_dir/class.method [parameter]
the_output=`java -cp /opt/my_dir/class.method [parameter]`
java -cp /opt/my_dir/class.method [parameter] 2>&1
How can i get the output stored into the_output variable?
Programming :: Java Coding To Use Call The Bash Script?
Oct 31, 2010i am using front end as java and back end RHEL5.i am trying to calling a bash script with java. but i am facing problem.i am using following java coding to use call the bash script
import java.util.*;
import java.io.*;
public class b
[code]....
Programming :: Running Scripts Using The Java
Aug 17, 2010i want to use java as tool in which i give an input,and on the basis of this input my specific script run. for example.... if we talk about web server.. in my java page..i have to just type my web page name...say [URL] and then enter the text...say "hi how are you"
then my script will run... in the script it itself start the service,then edit the configuration file in /etc/httpd/conf/httpd.conf
and make changes according to my input in java page... i know the scripting but i dont know how java command will execute my script...
Programming :: Running Shell Script From A Java Prg
Feb 20, 2011I am facing problem of trying to access parameters to be given to shell script within a java prg.
I have following code to run the process within java but the parameter is not recognized within $ or without it also.
Code:
Debian Programming :: Memory Usage When Running Java Program
Jun 28, 2013I have a java program that runs on Debian as a background processor. Yesterday the Java program stopped running. I looked at the memory usage, the system only had 5MB memory left, so my guess is that the java program ran out of memory to use.
However, after we restarted the java program, we could see that the free memory count started to go up. It kept going up from 5MB to over 400MB. The increase of memory happened slowly, when I measured it, I could see that with each minute passing by, there were a bit more memory added into the free memory pool, and meanwhile, the java background process was running.
I wonder why this would ever happen. It's as if our java program first brought the machine done because it consumed all the memories, then after restart, it starts to give back memories.
Programming :: Invoke Java From Bash Terminal Via Shell Script Fails Under Mint Debian / Fix It?
Feb 16, 2011I am running a Java application on the command line bash terminal under Mint Debian. I have JDK1.6.0_22 installed 64-bit, and the OS is 64-bit too. I have a few JAR files in the directory and a few native LWJGL libraries. When I run the application using the command line, all works fine.
Lets assume my directory where the files are is called /home/riz/MyGame. I change to that directory and this is the command I use code...
General :: Command To Check The Java Version: Java -versionand Got :bash :java: Command Not Found?
Jul 26, 2010I've just installed java (jre-6u21-linux-i586.bin) on Red Hat 4.4 AS and issued this command to check the java version: java -versionand got :bash :java: command not found
View 4 Replies View RelatedProgramming :: Sed Running Under Bash - Getting Error
Jul 18, 2010~$ sed s/^bb/bbbbbb/ foo1.txt
~$ sed: -e expression #1, char 3: unterminated s command
~$
Where 'b' stands for space. What is the error here? Sed is running under bash.
Programming :: BASH - Can't Check If XScreenSaver Is Running
Feb 26, 2011I'm having trouble trying to make a script. What I want to do is check if xScreenSaver is running in my user account. If not, run it. If it's running, kill it.
So this is the script I've made:
Code:
The problem is that I've echoed the output of $(pgrep -u $(whoami) xscreensaver) and it always seems to add 4 numbers to the pid, even if the pid doesn't exist. What do I mean by "doesn't exist"? That no xscreensaver is running in my user, and if I run pgrep -u $(whoami) xscreensaver in bash, I get not output, but if I run the command though the script, I get (for instance) 4050. If I run it again, I get 4054, and again 4058... etc. What the hell is going on with that?
Programming :: Change Running Path In Bash
Feb 5, 2010We have a custom app that runs on boot on some older hardware running DSL linux, and their startup manager was quite simple. We purchased some newer Asus eeebox's which run xandros and things are quite stable and run nice with 1 exception.The application only runs from the root (/) location. This box auto logs in as 'user' and there is a /home/user/.kde/Autostart folder where you can stick scripts to run at boot. So I have a start.sh script, and with little bash programming tried things such as;
sudo cd /
sudo /startapp.pl
but the errors start spewing with the basic;can't find data/xyz as it's looking in the local.I thought there was a basic cwd (change working directory) but everything I try just forces the run from that location.Any ideas or suggestions are appreciated, but things like can you change the code, etc. can't be done, so it must be a programming thing. The only other thought I had but not sure, can you do a cronjob with @boot or something, that when the box starts, it can run this job as root and fire off?
Programming :: Making Sure Script Is Running In Bash?
Feb 15, 2011is this a good way of doing it? Shall I use & when starting the new process? Itested in bash and dash.
testbash=$(ps -e | grep $$ | grep bash)
if [ 0 = ${#testbash} ]; then
echo "new process"
[code]...
Programming :: Running Bash Script In New Screen?
Feb 16, 2011I have a bash script that I want to be running on a "clean" screen, but when the script finishes/exits I want to see what was previously on the screen. Any thoughts? The "Clear" command does not enable me to get the information back, and the "Screen" Command runs the program in the original window, so you see nothing until the new screen is exited.
View 4 Replies View RelatedDebian Programming :: Running Programs In Parallel In Bash
Jul 22, 2014I am trying to replicate what is happening on this page under the tcsh shell, but using the bash shell found in Wheezy. Here is the page I am referring to:[URL] The command I am trying to replicate is on page 6 under figure 2.4. The command is "prompt> ./mem &; ./mem &".
I would like to run the same program twice, concurrently, but do not know how. Note that I am not trying to use a bash script, but rather by simply using syntax on the command line.
Programming :: Running Script Bash To Fill Files?
Mar 21, 2010I have around 600 empty text files that I need to add the name of this file as part of the data, I meanfiles from "file1.txt to "file599.txt, all of them empty, and I need to get the name inside the file, so, when I open the file show the name as part the data "file1".these files were created on my web site, I am thinking in a small script in bash
View 5 Replies View RelatedProgramming :: Find Out If X11 Is Running From Within Perl OR Bash Script?
Mar 17, 2010I am writing a script based image manipulator but i need to know if X is running so i can tell if i use CACAVIEW to imagemagick DISPLAY command.
View 14 Replies View RelatedProgramming :: Simple Bash Script Is Not Running All Of The Commands?
Jun 14, 2010I am running a simple script that I copied from slug.ceca.utc.edu/docs/2009-3-26-linux-server-health.pdf and edited with the names and paths of my own servers. I don't know much about scripting (re: nothing) but I wanted to try and be efficient in my new role as a Linux Sys Admin. The script was saved to root's home directory and runs as part of root's crontab once a week. The script runs with no problem, but it doesn't actually seem to run all of the commands contained within. It skips some in the middle and the end and I don't know why. The script itself is this:
Code:
#!/in/bash
uname -a > /tmp/server.txt
[code]...
Programming :: Catch User Input While The Bash Script Is Running?
Oct 30, 2010How do you catch user input while the script is running? Or, how would you make two scripts run at the same time, but use input from one script to the other? The program I'm trying to make, echos text on the screen continuously, but while thats happening, I want the user to be able to input something, so the program can detect the input and display something else. So I thought maybe I could make two scripts run to do each task.
View 5 Replies View RelatedProgramming :: Keep The Bash-script Running If "exec Command" Fails
Aug 13, 2010Is there a way to use exec, but if exec fails to go on with the script?
Example:
Code:
#!/usr/bin/env bash
exec startx
echo "Starting of X failed"
If startx fails, the echo will be seen on the screen. I tried all kind of stuff, but guess it ain't of much use to post it here. I searched the web, but searching for "exec and bash" in one sentence does give results which are not what i am looking for.
Programming :: Running More Than One Script In A Bash Script And Piping Results To SSH?
Jun 8, 2010how to set the subject of this up.. but here is what I am trying to accomplish (please keep in mine, this is only my first month playing with ANY Linux programming): My shared web host limits running 2 CRONS or 2 SSH sessions at one time. I need to run more than that.. So, my solution is to run what I need on my home computer, and then push all the results via SSH to my web server.
To keep things timed, I am trying to call 4 bash scripts from inside of 1 bash script... Each bash script has variables I need to export out to the remote (web) server. Being that I can only run 2 SSH or 2 CRON sessions on the remote, it wouldn't do me any good to open up CRON or SSH remotely or locally - either way I'm maxing out. That is why I would like to call 1 final script that takes the output of the 4 bash scripts and does the job.
Main bash calls via CRON every 30 minutes:
Code: ./script_1 &
./script_2 &
./script_3 &
./script_4 &
[code]....
I need to scp the file saved by wget to the remote server. I also need to pass the SQL statement generated in each script as a command in SSH. I'm lost how to get the info from "script_x" into a string that can be used to SSH - and doing this all inside of ONE SSH command. Would I store the SQL strings in a file and call that in the SSH command line?
If so, what is the command to make sure the variable output in the "script_#" file is sent to a file? Can I call the variable from the main Bash Script? Now - the good news is, I can SSH from my local machine to the remote one.That is about as far as I got.Again - I am so new to this that my ears are still wet. This has been something I have been working on for a while, and I'm just lost at this point.
General :: Running Bash But Common Bash Commands Not Working?
Jul 17, 2010below are the details of my system. I have bash as my current shell, some really common commands aren't working.
Do I need to do a re-installation of bash? Or how do I install a selection of bash commands which I need? (for example a subset of [URL])
Code:
root@sdptfw:~ # uname -a
Linux sdptfw.sdpt.co.za 2.4.36 #1 Tue Jul 22 13:13:24 GMT 2008 i686 i686 i386 GNU/Linux
root@sdptfw:~ # echo $SHELL$
/bin/bash$
[Code]....
General :: Why Does Running A Program In Bash Work, When Running It In The Menu Doesn't?
Jul 26, 2010I presume there is something in the JWM window manager - or Puppy Linux Lupu 5.01 itself that is conflicting with the normal loading of GMPLAYER....
I would like to know how to troubleshoot, and fix this problem if possible (even a workaround would be great).
Ubuntu :: BASH Script To Get PID Of Java File?
Jun 18, 2011I have a simple bash script called run.sh:
Code:
java -jar /testing/run.java How do I get the Process ID and save it in a file called "PID"
Programming :: Bash: Printing The Line Number In Bash Script?
Feb 4, 2011I would like to know how do I print the line # in a script. My requirement is, I have a script which is about ~5000 lines long. If there are any errors happen I just exit. And I would like to add the line # of the script where the error happened.
View 3 Replies View RelatedProgramming :: Bash Ctrl+c Tarp And Bash Read With Timeout?
Jan 24, 2010simple bash code:
Code:
#!/bin/bash
trap "echo 'you got me'" SIGINT SIGTERM # to trap ctrl+c
echo "Press ctrl+c during 5 sec loop"
for ((i=0;i<5;i++)); do
[Code]...
How come code behaves normally and stops when ctrl+c signal is caught and resumes, but after I use at least one timeout read in the code it looks like, if signal is caught again it doesn't pause the execution but skips the loop. If you remove -t (timeout) option from the read, both loops look the same!
Programming :: Reading A Bash Variable In Bash Scripting ?
Nov 26, 2008I have a config file that contains:
my.config:
Code:
Now in my bash script, I want to get the output /home/user instead of $HOME once read. So far, I have managed to get the $HOME variable but I can't get it to echo the variable. All I get is the output $HOME.
Here is my parse_cmd script:
Code:
Programming :: Run Multiple Bash And Php Scripts From A Bash Script?
Jul 25, 2011I have written quite a few separate bash & scripts and php scripts that up to now I have run from cron jobs. However I have to estimate how long each takes to run, before running the next and so it probably takes much longer than necessary to run them all. They have to run in order.
Now there are so many I am thinking it would be better to have a master bash script that would run one after the other, but I am not sure how to get the master script to wait before starting to run the next script. Is this possible and is there a command that will make the script wait between bash and php scripts , for them to finish, before running the next?
Ubuntu :: JMF Without BASH - How To Code A Media Streamer In Java
Aug 31, 2010I need to code a media streamer in java but I found out that I would need the java media framework to simplify the task. I downloaded the bin and need to export it into the files where my jdk packages are at by default. I'd rather not set my path variables because I'm not so good at interfacing with BASH. I just want to start nautilus in sudo and drag and drop like I did with my python packages. I am just having trouble locating the jdk lib.I'm not using openjdk but sun-jdk 1.6.18. My OS is Lucid. The package is JMF2.1.1e. I'm pretty sure I just need the just the lib files from it and none of the executable.
View 1 Replies View RelatedUbuntu :: How To Get Java Up And Running
Feb 12, 2010I just did an upgrade from 8.04 to 9.04 and i'm loving it. I just need to get Java working so I can use ..... and stuff like that. I installed OpenJDK and the plugin but I can't figure out how to get it to work in Google Chrome or even Firefox.
View 5 Replies View RelatedUbuntu :: Installing Java - Bash: Version: No Such File Or Directory
Aug 22, 2010i'm brand new to linux and honestly don't know how to use it very well and i am trying to install java, following the directions is not working i am stuck at Code: chmod a+x jre-6u<version>-linux-i586-rpm.bin it says bash: version: No such file or directory i downloaded the software to the downloads folder firefox uses as default.
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