I have a problem changing a windows batch file into a unix shell script to execute the same java code on my linux machine.
My shell script looks like that:
#!/bin/bash
libdir=../lib
bindir=.
LIBS=$libdir/lib_1.jar;$libdir/lib_2.jar;$libdir/lib_3.jar;$libdir/lib_4.jar
java -cp $bindir;$LIBS com.sample.SampleServer
For me it looks correct but I am getting the following error message:
Failed to load Main-Class manifest attribute from /home/user/development/lib/lib_2.jar
Thanks in advance for your help.
The parts of the classpath need to be separated by colons (:) on UNIX, not by semicolon (both in -cp and in LIBS).
Related
This is my exact batch file. I have tried to convert it doing some research online and get an error
"Failed to execute child process "/home/pi/Desktop/TeachVal/TeachValLinuxShell" (No such file or directory)
echo off
cls
echo Running TeachVAL II...
set path=%path%;/Library/Java/JavaVirtualMachines/jdk1.8.0_65.jdk/Contents/Home/bin
java -classpath comm.jar;Robot.jar;TeachVAL TeachVAL
cls
exit
This one is my attempt at translating.
#!/bin/bash
set +v
clear
echo "Running TeachVAL II..."
java -cp ".dir1;dir2;path/home/pi/Desktop/TeachVAL/comm.jar;
path/home/pi/Desktop/TeachVAL/Robot.jar;/home/pi/Desktop/TeachVAL/TeachVAL"
clear
exit
Welcome to Linux--life is good here, but there are a few things that work slightly differently, when compared to Windows.
One difference is that Windows uses semicolon (;) to separate entries in a list of paths, but Linux uses colons (:) for that purpose.
So, the Windows command:
java -classpath comm.jar;Robot.jar;TeachVAL TeachVAL
would correspond to this on Linux:
java -classpath comm.jar:Robot.jar:TeachVAL TeachVAL
In general, on Linux, semicolons are used to put multiple command lines into a single line. Once you've learned that, I think you can then understand why:
java -cp .dir1;/home/pi/Desktop/TeachVAL/TeachVAL
would be the same as:
java -cp .dir1
/home/pi/Desktop/TeachVAL/TeachVAL
That would run java (with no class to be executed) and then try to run "/home/pi/Desktop/TeachVAL/TeachVAL" which can't be found.
There are many more differences to learn; here's a page that will help you get started: http://tldp.org/LDP/abs/html/dosbatch.html
I have error while executing java command with .sh file with external library.
I have wrote a script called executer.cmd which contains
java -cp .;hsql.jar hsqlconnector %*
its working fine with windows.
For Unix also I have wrote a script and make u+x with chmod but still m getting error
of
bash: hsql.jar command not found
My executor.sh looks like
java -cp .;hsql.jar hsqlconnector %*
On Linux you must use : (colon) instead of ; (semi-colon) to separate entries on a path, because ; has a different meaning in the shell on Linux.
See here:
http://www.coderanch.com/t/526784/Linux-UNIX/cp-linux-include-additional-jar
I am trying to follow this tutorial to be able to use Jade (Java Agent Development Framework). I am pretty new with java. I have a problem with this command: (I am using Mac OSx)
java -cp lib\jade.jar;classes jade.Boot -gui -agents ping1:examples.PingAgent.PingAgent
I get this error:
Usage: java [-options] class [args...]
(to execute a class)
or java [-options] -jar jarfile [args...]
(to execute a jar file)
...
-bash: classes: command not found
I have set my environment variables like this:
export CLASSPATH=$CLASSPATH:/Applications/jade/classes
export CLASSPATH=$CLASSPATH:/Applications/jade/lib/jade.jar
and here is the hierarchy of the folders:
If you need some more information to understand the problem please let me know.
Try adding quotes around your class path: java -cp "lib\jade.jar;classes" .... Without them, bash interprets the semi colon as the start of a new command, which causes the error message -bash: classes: command not found
Edit
It just struck me that you of course are running in *nix. Then the path separator would be :, not ;. Then the quotes shouldn't even be needed. Semi colon is the path separator in Windows.
Try
java -cp "lib\jade.jar;classes" jade.Boot -gui -agents ping1:examples.PingAgent.PingAgent
Looks like bash is treating the ; as end of command and treats classes as a new command.
The command is in Windows notation, not Unix one. On Unix systems You have to use lib/jade.jar instead of lib\jade.jar
I'm complete Linux newbie, but still want to provide a simple way for Linux users to start my Java program.
Therefore I want to create a shellscript.
I can't test my script so I'll have to ask here if this is working correctly:
#!/bin/bash
java -cp "bin";"extres/junit.jar" data.ProgramOne
exit 0
Your mistake is in path delimiter. It is ; on Windows and : on Linux.
Moreover you should not wrap each classpath fragment with "". On unix you can escape spaces and other forbidden characters using \. So, I'd re-write the java execution line as:
java -cp bin:extres/junit.jar data.ProgramOne
This will run when you are executing script from your app directory where you have subdirectory bin and extres.
try this:
java -cp "bin:extres/junit.jar" data.ProgramOne
Java under Unixes uses : as the separator in the classpath, so you'd need (the quotes are not necessary):
#!/bin/bash
java -cp bin:extres/junit.jar data.ProgramOne
I have a java program that I would like to be able to run from anywhere on my machine. I would like to run it from my Cygwin command prompt. I've made scripts to call the java program. I added the location of the java program to the classpath, and the scripts work when I run them from the java program's directory. However, when I try to run from any other directory, I get:
java.lang.NoClassDefFoundError: commandprogram/CommandProgram
This is my script:
#!/bin/sh
CWD=`dirname "$0"`
java -cp "$CWD/classes;$CWD/lib/AJarFile.jar" commandprogram/CommandProgram
Changing the java line to the following:
java -cp "$CWD/classes;$CWD/classes/commandprogram;$CWD/lib/AJarFile.jar" CommandProgram
produces the same results.
add your directory to classpath example:
java -classpath commandprogram CommandProgram
or
java -classpath directory_to_program Program
After trying just about everything I could think of, I echoed out the command and saw that there was mixing of Cygwin paths and Windows paths. The solution was to change the script to:
#!/bin/sh
CWD=`dirname "$0"`
CWD=`cygpath -w "$CWD"`
java -cp "$CWD/classes;$CWD/lib/AJarFile.jar" commandprogram/CommandProgram
Then CWD changed to "C:\Program Files\..." instead of "/cygdrive/c/Program\ Files/..."
I had previously encountered this problem and solved it with the cygpath -w solution, but then changed my script slightly and didn't notice that the path problem came back.
you have to use a dot to separate packages, not a slash.
java -cp "$CWD/classes;$CWD/lib/AJarFile.jar" commandprogram.CommandProgram
The usual way of running a java file is to save it in the Java/Bin folder and Run cmd
C:\Program Files\Java\jdk1.7.0_05\bin> javac filename.java && java classname
If you save the file in different directory such as D:, you can use the following on the cmd prompt:
D:\Project java> set path=%path%;C:Program Files\Java\jdk1.7.0_05\bin