General :: Java_home - How Check The Path Has Properly Set Or Not
Feb 13, 2011
I have installed jdk1.60_23 i have created a directory named java in root's Home, jdk has installed in jdk1.60_23 directory in java how to set path to compile or run the java file ?
I did like this : export JAVA_HOME=/usr/bin/java/jdk1.60_23/bin export PATH=$JAVA_HOME:/usr/bin/java/jdk1.60_23/bin
How check the path has properly set or not ? how and where create source file of java ? how to compile and run the java source file ?
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Jan 10, 2009
I have problems with setting my JAVA_HOME variable. I am using Slackware 12.0, bash shell. I have set JAVA_HOME in my /etc/profile, like this:
But when I login in with my user name and type env on the command line, I get for JAVA_HOME the following:
Also, in my /etc/profile I have put the path to my java in the PATH variable, like this:
And when I type env when I login, then the PATH variable contains correctly the path to the jdk (as I have put it into /etc/profile).
I expect that after I have set everything as I want in /etc/profile, and restart the computer then what I have set will be relevant and when I login and type env, I will get values to the variables equal to those I have set in /etc/profile. Why it does not happen?
I have particularly a problem with a Java application, which I want to run. When I type ant, I get: error: JAVA_HOME is not defined correctly.
We cannot execute /usr/lib/java/bin/java.
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Dec 30, 2009
I installed "jdk1.6.0.bin" and "jre1.6.0.bin" successfully. But I don't know where they are installed. I can't find anywhere. What is the default path they are installed.I want to set JAVA_HOME.
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Aug 1, 2010
OS Ubuntu 9.04
I have in /etc/profile.d/jdk.sh
Code:
But when I am typing
Code:
which java I see
Code:
Which is not set in PATH.
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Jul 13, 2010
I want to check weather a for loop has executed properly
Code:
for name in `awk -F: '{printf " "$1}' /etc/passwd`;do
echo $name;done
[ $? -eq 0 ] && echo "SUCCESS" || echo "Failed_to_fetch_the_user";
Every time this gives output as SUCESS even If I change /etc/passwd to other file name.
How can I resolve this ?
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Jul 28, 2010
Tomcat installation requires JAVA_HOME to be defined. In Windows it is straight forward. But in Linux binaries are in one folder and libraries are in other folder.
Is there a way to find out where exactly is JAVA_HOME?
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Jan 16, 2011
I found the following function in /etc/profile file.
[Code]...
1. I dont undestand what "if ! echo $PATH | /bin/grep -qE "(^|:)$1($|:)"" this if statement actually comapres??
2. Also what is the difference between PATH=$PATH:$1 & PATH=$1:$PATH
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May 13, 2010
I tried to install the nutchwax and hadoop as a prequisite for the wera.
Problem:
localhost:
Error: JAVA_HOME is not set.
source code:
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Mar 6, 2011
I'm writing a script to rsync some directories to external hdd for backup.
My external hdd gets automatically mounted to /media/backup1
My script then backs up predefined directories to /media/backup1.
I have added this script to cron to run once every day.
The problem is that in the case where the drive is not plugged in and the script runs, it backs up to my local hard drive, and since it is more than 70% full, it fills it up by duplicating that 70% onto itself.
I have taken the script further, to test whether /media/backup1 is mounted. If it is, the backup will run. If it is not, it will bail out.
I'm using the mountpoint program to test for mounts.
My script so far:
Code:
#!/bin/bash
if [[ `mountpoint /media/backup1` ]]; then
echo "filesystem mounted"
# The backup function. Commented out for testing.
[Code]....
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Jun 8, 2010
I was wondering if anyone could be kind to me in providing exact variable to be set for ldpa server installtion.
I am currently installing ldap in linux Red Hat Enterprise Linux AS release 4 (Nahant Update 6) and i get teh following error mesage.
I tried settng exact variable by reffering to ~/doc/install/configure but in vain.
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Jun 4, 2010
My DVD/CD burner is rather old now (going on 5 years), and I've had some "quality" issues when I've been burning stuff for the past year.
CD's: When I play a burned CD in my car stereo, the songs have a "skipping" sound to them on the low-volume levels of the audio. I use K3b as my burning software, and it seems to be the best, but am I wrong? Is this a common problem?
DVD's: Specifically video DVD's. After converting the .avi to an image file using DeVeDe Creator, it gives me a file that has the .iso and I burn the disc using K3b. It's really hit or miss.
The question: is there a way to test the performance of my DVD burner to make sure it's working properly? Is there a way to calibrate the mechanism? I have a new External DVD/CD burner that supports "LiteScribe" (I could be mistaken on the name, but it's a technology that allows you to create a picture on the opposite side of the disc), but my INTERNAL is a 5 year old Lite-On.
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Jun 21, 2010
Am using rhel5 server, in my server cbq time check was not working properly am using this cmd TIME=18:00-6:00;300Kbit/25Kbit,
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Sep 4, 2009
I was wondering why
Code:
Is echoing NO even though
Code:
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Feb 9, 2010
Where to write JAVA_HOME? In .bashrc or in .bash_profile? What's the difference?
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Apr 15, 2009
I have some Flex and Java files which can be compiled with JDK1.5. My server was already loaded with 1.4 (at path /usr/bin/java) and our sys admin(I dont know why) copied another JDK, JDK 1.5 at path /usr/java/jdk1.5.0_16/. It seems very easy to use this java. Just set the path in .bash_profile. I did it and now if I run which java I still see the path for java 1.4 not java 1.5. Am I doing something wrong? Following is actual entry from bash_profile
Code:
PATH=$PATH:$HOME/bin
PATH=/usr/java/jdk1.5.0_16/bin:$PATH
JAVA_HOME=/usr/java/jdk1.5.0_16/
export PATH JAVA_HOME
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Oct 8, 2010
I use this command:
Code:
find ./ -atime +360
to figure out the files that haven't been accessed since 360 days. The command above will return results like this:
Code:
/uploads/2010/02/some-file-name.ext
/uploads/2009/08/another-file-name.ext
... etc
I'm taking here about tins of directories, thousands of files. I'm looking to find a command that makes me able to move the results above to another path, and to create that path once it doesn't exist like below:
Code:
mv /uploads/2010/02/some-file-name.ext /old-files/uploads/2010/02/some-file-name.ext
But I want the executed command to create this path
Code:
/old-files/uploads/2010/02/
If it doesn't exist.
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Feb 21, 2011
I have a program that takes a relative path as input appends it to a some path string to get the actual path.
Now all I can input is the relative path. So if I want to go one level above my input will be ../mypath.
If I know the depth of the path used internally, I can use .. as many times to go to the root directory and then give the absolute path. But suppose I do not know the depth of the directory, can I construct a relative path string such that it considers it as a relative path. One way could be to have enough .. in the path string so that I can force an absolute path for some maximum depth of path.
Is there some path string syntax that I am not aware of but can achieve this?
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Apr 26, 2011
Experimenting with shell variables, accidentally deleted the path variable how could I return to the original path value. What kinds of problems will I have if I don't have a path variable.
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Sep 14, 2009
I have a path c:windowsackup I need this string to be changed into /windows/back/up I used the command -bash-3.00$ echo windackup | sed 's/\//g' but the output is windbackup
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May 31, 2011
Current script:-
prefix=user@my-server:
find . -depth -type d -name .git -printf '%h�' | while read -d "" path ; do (
cd "$path" || exit $?
[code]....
How shall i go about changing the absolute path to relative path, so that /home/git/mirror/android/adb/ndk.git gets converted to /mirror/android/adb/ndk.git //echo <command> "$prefix$PWD.git" ?? - anything for relative path?
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Jul 12, 2011
kernel 2.6.21.5, slackware 12.0
GNU bash 3.1.17
Code:
As you can see, /usr/local/bin is in the path. However, bash does not look for nasm in /usr/local/bin.
If I am root, things go well:
Code:
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May 24, 2010
You can install Java either using "Synaptic Package Manager" or using "apt-get install java-6-openjdk" command.Java will be installed to the location "/usr/lib/jvm/java-6-openjdk"Now open a terminal and type "sudo gedit /etc/bash.bashrc ".Append the following lines to the opened "bash.bashrc" file
"export JAVA_HOME=/usr/lib/jvm/java-6-openjdk/"
"export PATH=$PATH:$JAVA_HOME/bin"
Save & close the "bash.bashrc" file
[code]....
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Apr 29, 2010
I downloaded grails-1.2.2.zip in root then did following in .bashrc
Code:
export GRAILS_HOME=/root/grails
export JAVA_HOME=/root/jdk1.6.0_20/bin
rebooted the system.
Code:
[Code]...
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Aug 1, 2010
My OS Ubuntu 9.04
I installed java via
Code:
Code:
Code:
Now logged out and logged in again in my system checked
Code:
and
Code:
After which I type on command prompt
Code: ant and get the following error
Code:
Error: JAVA_HOME is not defined correctly. We cannot execute /usr/lib/jvm/java-6-sun/bin/bin/java
both the file ant.sh and jdk.sh are executable.
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Aug 1, 2010
My OS Ubuntu 9.04I installed java via
Code:
apt-get install sun-java6-jre
also I downloaded ant-1.8.1 binary
[code]....
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Jan 10, 2009
I have problems with setting my JAVA_HOME variable. I am using Slackware 12.0, bash shell. This is a question for the 'Linux Newbie' forum (not slackware-specific).
I have set JAVA_HOME in my /etc/profile, like this:
But when I login in with my user name and type env on the command line, I get for JAVA_HOME the following:
Also, in my /etc/profile I have put the path to my java in the PATH variable, like this:
And when I type env when I login, then the PATH variable contains correctly the path to the jdk (as I have put it into /etc/profile).
I expect that after I have set everything as I want in /etc/profile, and restart the computer then what I have set will be relevant and when I login and type env, I will get values to the variables equal to those I have set in /etc/profile. Why it does not happen?
I have particularly a problem with a Java application, which I want to run. When I type ant, I get:
error: JAVA_HOME is not defined correctly. We cannot execute /usr/lib/java/bin/java.
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Nov 6, 2009
I've managed to create a working RPM that does a bit of system configuration despite having little working knowledge of linux before starting. My RPM appeared to be working for awhile now but as a final test I installed it on a completely fresh install of RedHat enterprise edition 5.2 (after installing prereq rpms). It seems I'm running into a problem that the IMQ program(ie java message queues) will not boot correctly when I do this because it doesn�t know where to find the JRE.
I want to make sure that when my rpm is run the program actually works afterwards, and it won't work without IMQ. I was thinking I would have the RPM modify the IMQ configuration file to provide a -javahome argument when it boots up. I don't think I can set the configuration file to say '-javahome $JAVA_HOME' because the JAVA_HOME environmental variable won't be set until later in the boot up process after IMQ has attempted, and failed, to boot.
so I had thought the rpm could set whatever the value of JAVA_HOME is at the time the rpm is installed as the home for IMQ. So my questions are...
1) how can I require that JAVA_HOME is set prior to running my RPM, and have the RPM not install if JAVA_HOME isn't set
2) is there a good way to have rpm be able to undo the change I made to the configuration file if it is erased? Should I save a version of the old configuration file before I make the changes somewhere to be used?
3) is this the best way to do things, or is there a simpler method?
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Jul 3, 2010
How to:
1. check JAVA version,
2. set up the JAVA_HOME and
3. CLASSPATH variables
I had installed
1. NetbeansIDE 6.7.1 from Software Center
2. MySQL from command sudo apt-get install mysql-server
3. libmysql-java from synaptic package manager
OS Information
1. Partition 1, 3.0 GB Swap Space, /dev/sda1
2. Partition 2, 6.0 GB Filesystem, /dev/sda2 mount at /, Bootable
3. Partition 3, Ext4, /dev/sda3 mount at /home
4. Partition 4, /dev/sda4, Extended (Drive A, Drive B and Drive C)
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Jul 17, 2009
Java applet not loading image with relative path(e.g. images/1.jpg) but loads image with absolute path(i.e. from /root/user/images/1.jpg) . This is a problem when i want to host the applet on web server
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May 3, 2011
I installed openjdk version of Java using yum what is the openjdk Home directory?
Is there a command to find it?
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