I want to execute a script with a ProcessBuilder(). My code is:
new ProcessBuilder().inheritIO().command("/bin/bash", "-c", "./deploy.sh").start();
In the bash script I have:
#!/bin/bash
rosrun my_package ardrone_test_1.py
It works if I run the bash script manually in the terminal, but if I do with the ProcessBuilder I got an error:
rosrun: command not found
The same if I run python scripts which uses ROS. There are errors that some package are not found, whereas it works fine if run via terminal.
Related
I want to execute a jar file of DOMO CLI from a shell script. The jar file itself has some functions which I want to call after I call the main jar file. The problem which I am facing is that after it executes the jar file, I am not able to pass the additional commands to execute inside that jar through a shell script. It just stops after calling jar and doesn't take further commands. Can anyone please help? Below is the code I am calling from a shell script.
java -jar XX.jar
The commands are as below which follow the above jar. So once we enter into the above jar we have to execute the below commands one after the other. I am not sure how to achieve this through a shell script.
connect -s X.domo.com -t Ysssss
upload-dataset -a -i dhdhdhdh -f /prehdfs/dev/comres/herm/data/yyyy.csv
Did you try using pipes and inputs.
When you execute above it runs it under a child shell.
You may try below format if not tried already
$ (echo "connect -s X.domo.com -t Ysssss" && cat) | java -jar XX.jar
If you can reference a file in your use case, you could put your commands in a file.
File: list_my_datasets.domo
connect -t ... -s ...
list-dataset
quit
then run the command:
java -jar domoUtil.jar -script list_my_datasets.domo > datasets
I wanted the data from it so I piped to a file (where I had to grep what I wanted), but you would omit that I believe, unless it has some output you'd want to check. I haven't tested with the upload command, but I would hope any commands substituted or added to the example work similarly.
Domo docs on scripting
At first let me describe my issue.
I configured Jenkins and after build action I called shell script to run bash script on remote server.
The shell script starts application via command
java -Dcom.sun.management.jmxremote
-Dcom.sun.management.jmxremote.port=xxx
-Dcom.sun.management.jmxremote.authenticate=false
-Dcom.sun.management.jmxremote.ssl=false
-XX:+HeapDumpOnOutOfMemoryError -jar name.jar "BUILD_PARAMETER"
I see logs from my application in Jenkins build, and it's keep build process running. I need to finish it after running
sh run command. Is it possible?
If you're doing this using Jenkins you will need to use the nohup notation as in the comments as well as specifying a non-numerial PID for the process. Jenkins tries to clean up after a job finishes by killing any processes it starts.
BUILD_ID=dontKillMe nohup <-your command -> &
the above command should work
https://wiki.jenkins-ci.org/display/JENKINS/Spawning+processes+from+build
Your shell script need to fork a process, and return, otherwise Jenkins thinks your shell script is still running (which it is, if it's not forking the process and returning).
You have not provided the command you use to launch your application, but a common way to fork a process in linux is:
nohup <your command here> &
I have developed a web app in Java which uses Scrapy to get some data. To reach that, I invoke a shell script from Java:
Process p = Runtime.getRuntime().exec("sh myPath/myScript.sh");
p.waitFor();
which contains
#!/bin/bash
cd mySpiderPath
echo "We are going tu run scrapy"
scrapy crawl mySpider
echo "done!"
After running it, both "echo" are printed but scrapy does nothing. If I run myScript.sh from shell it works perfectly... I'm confused!
What can I do to try to debug this strange behavior?
EDIT
I have changed myScript.sh to run python version instead of scrapy command, and it doesn't work... so, the conclusion is that is not an "scrapy problem" but it is a bash script problem when it's invoked from Java...any ideas? (if I execute myScript.sh from shell it works fine)
#!/bin/bash
cd mySpiderPath
echo "We are going tu run scrapy"
python --version
echo "done!"
Try changing:
Process p = Runtime.getRuntime().exec("sh myPath/myScript.sh");
to:
Process p = Runtime.getRuntime().exec("bash myPath/myScript.sh");
This will probably run the script with /bin/bash instead of /bin/sh, that often points to a simpler shell.
I have the following script which won't work when executed as a script, but does work when the exact same commands are entered into the terminal:
#! /bin/sh
cd ~/Desktop/Example/
javac Generator.java
The error message is:
my_script.sh 3: my_script.sh: javac: not found
The above script is named my_script.sh and I execute it from the terminal using:
sh my_script.sh
when I do
echo $SHELL
in the terminal I get:
/bin/bash
Add jmlc to your path and run the script again.
To check: Open a new shell and type 'jmc'.
Another way to get your script working is to specify the full path in your script. Replace 'jmlc' with '/full_path_here/jmlc'.
Also make sure that any other commands in jmlc script are also available in the path.
You can also made jmlc available by exporting its PATH:
#! /bin/sh
export jmlc_bin=FULL_PATH_TO_JMLC
cd ~/Desktop/Example/
$jmlc_bin Generator.java
Navigate to the directory where your single line commands were working and save your script in that directory.
then execute
./my_script.sh
I have a program in java which takes 0'th aargument as file location like
File f = new File(args[0]);
so when i execute it using a windows batch(.bat) file it works correctly .
but when i execute the same using a linux shell file(.sh) in linux i get ArrayIndexOutOfBoundsException.
WINDOWS BATCH FILE :
#echo off
for /f %%i in ("%0") do set scriptpath=%%~dpi
set cp=%scriptpath%/../lib/*.jar;
java -classpath %cp% com.synchronizer.main.MYSynchronizer %scriptpath% "%1" "%2"
LINUX SH FILE:
export JAVA_HOME=/usr/local/java
PATH=/usr/local/java/bin:${PATH}
THE_CLASSPATH=
for i in `ls ../lib/*.jar`
do
THE_CLASSPATH=${THE_CLASSPATH}:${i}
done
java -cp ".:${THE_CLASSPATH}" \
com.synchronizer.main.MYSynchronizer
please help!
It looks like a problem in script (no arguments are passed to the Java program).
You can consider to debug the script like this: debugging scripts
Hope this helps
Your shell script is not passing any parameters:
java -cp ".:${THE_CLASSPATH}" com.synchronizer.main.MYSynchronizer
Try:
java -cp ".:${THE_CLASSPATH}" com.synchronizer.main.MYSynchronizer "$1" "$2"
As stated above, your Linux shell script is not sending any arguments to the Java program that you are trying to start.
And, adding to that, you are not showing us how you run the Linux shell script. If no argument is given on the command line when you start the shell script, no arguments can be passed to your Java application from the shell script.
If you want to see the actual command that is going to be run by your shell script, you can always put "echo" in front of a line and see what all variables are expanded to. This is a simple way to debug shell scripts.