I created a setenvj1.6 shell script in my /usr/local/bin directory, in cygwin (Windows 7).
setenvj1.6:
export PATH=/cygdrive/c/bea/bea10/bea10g3/jdk160_05/bin:$PATH
export JAVA_HOME=/cygdrive/c/bea/bea10/bea10g3/jdk160_05
echo Set for Java 1.6
when I run setenvj1.6, like this:
myuser#mycomp /usr/local/bin
$ setenvj1.6
Set for Java 1.6
I see that the script has run, but when I check if anything is set correctly, I see that my variables are not set:
myuser#mycomp /usr/local/bin
$ echo $JAVA_HOME
Similarly, if I echo $PATH, I get my usual PATH variable but without the directory I tried to add with export.
How do I get this to work?
I need a bash script like the one I specified that I can run after I've run cygwin so that I can change my paths to whatever I want. Thanks.
Related
According to this mobilefirst tutorial, it mentioned:
You must have the JAVA_HOME environment variable set to your JDK directory.
For example:
Mac OSX: /Library/Java/JavaVirtualMachines/jdk1.7.0_67.jdk/Contents/Home
I've added this 2 lines in .bash_profile:
export JAVA_HOME=`/usr/libexec/java_home -v 1.8`
export PATH=$PATH:$JAVA_HOME/Contents/Commands
Is this correct?
Thanks.
in .bash_profile:
export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.xx/Contents/Home
Adding the below answer to help those who are looking for step by step instructions on how to setup Java_Home on a Mac.
Determine whether Java is installed by using the command below:
which java
You will something like this - /usr/bin/java
Next Step will be to determine the version of Java Installed by using the command below:
java -version
You will see something like java version "1.8.0_131"
Next step will be to get the location where the Java is installed:
cd /Library/Java
Under the Java folder, select the folder with the version that was displayed earlier:
/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home
Next check if Java_Home is setup to the correct location:
echo $JAVA_HOME
It will result in blank output if it is not already setup. If it returns the location, check if it points to the correct folder.
You can add or update the Java_Home using the below commands:
vi ~/.bash_profile
Navigate to the end of the file by pressing "Shift + g".
Now press "i" to get to insert mode.
Add the below lines in the bash_profile after replacing the path to the java home directory on your mac
# Setting Java_Home
export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home
Save this by pressing Esc followed by ":wq!"
Finally open a new terminal window and test the variable is setup correctly:
echo $JAVA_HOME
It should return the Java_Home path setup
If your default terminal is /bin/zsh (Z Shell) like in my case, then you should set these environment variable in ~/.zshenv file with following contents:
export JAVA_HOME="$(/usr/libexec/java_home)"
Similarly, any other terminal type not mentioned above, you should set environment variable in its respective terminal env file.
After saved the content into env file, restart terminal and call following commands:
echo $JAVA_HOME
It should display the full Java path.
Just a note to say this still works in OpenJDK version 11. As shown in the original question the java_home utility lives in /usr/libexec, which might not be on your $PATH. You can run the command directly in a terminal window, here's sample output too:
$ /usr/libexec/java_home -v 11
/Library/Java/JavaVirtualMachines/jdk-11.0.4.jdk/Contents/Home
And set JAVA_HOME to that value. Even better, wire your shell script's dot files as suggested in the original question by #user1872384, because that way your environment automatically keeps up with JDK upgrades as you install them.
How do I write a simple Python script that is globally executable via a simple command (such as cd or pwd)?
I know the file has to be executable and in my $PATH. I know I can omit the python prefix when calling the file by specifying the interpreter. But then I still have to call the script using the ./script syntax.
I basically want to create a bunch of Python CLI programs stored ~/bin and have them behaving the same way as Bash scripts like cd and pwd.
You just need to add ~/bin to your PATH. For example, you could add something like this to your ~/.bashrc file:
export PATH="$HOME/bin:$PATH"
To see the changes in the current shell, you can then do . ~/.bashrc. The path should automatically be added in all new shells that you open. You can check by doing echo "$PATH" - you should see that it starts with /home_directory/bin:....
Before marking this as duplicate, I went through these posts, but nothing helped.
'mvn' is not recognized as an internal or external command,
Getting -bash: mvn: command not found,
Can't access mvn command from command line?
Some are specific to windows and did not help. A couple of them on Mac OS X gave suggestions, that I tried but did not help.
What I tried (this is exactly what Maven suggests):
Extract the distribution archive, i.e. apache-maven-3.1.1-bin.tar.gz
to the directory you wish to install Maven 3.1.1. These instructions
assume you chose /usr/local/apache-maven. The subdirectory
apache-maven-3.1.1 will be created from the archive. In a command
terminal, add the M2_HOME environment variable, e.g. export
M2_HOME=/usr/local/apache-maven/apache-maven-3.1.1. Add the M2
environment variable, e.g. export M2=$M2_HOME/bin. Optional: Add the
MAVEN_OPTS environment variable to specify JVM properties, e.g. export
MAVEN_OPTS="-Xms256m -Xmx512m". This environment variable can be used
to supply extra options to Maven. Add M2 environment variable to your
path, e.g. export PATH=$M2:$PATH. Make sure that JAVA_HOME is set to
the location of your JDK, e.g. export JAVA_HOME=/usr/java/jdk1.5.0_02
and that $JAVA_HOME/bin is in your PATH environment variable. Run mvn
--version to verify that it is correctly installed.
I see that on the terminal that I used for installation, it works fine. I do not have this issue. but when I tried on a new terminal, I get command not found.
I also added export PATH=$M2 to my .bashrc, I did source and then restarted the terminal, still it did not help.
can someone suggest how to make it available in all sessions of terminal?
Thanks
Try following these if these might help:
Since your installation works on the terminal you installed, all the exports you did, work on the current bash and its child process. but is not spawned to new terminals.
env variables are lost if the session is closed; using .bash_profile, you can make it available in all sessions, since when a bash session starts, it 'runs' its .bashrc and .bash_profile
Now follow these steps and see if it helps:
type env | grep M2_HOME on the terminal that is working. This should give something like
M2_HOME=/usr/local/apache-maven/apache-maven-3.1.1
typing env | grep JAVA_HOME should give like this:
JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.7.0_40.jdk/Contents/Home
Now you have the PATH for M2_HOME and JAVA_HOME.
If you just do ls /usr/local/apache-maven/apache-maven-3.1.1/bin, you will see mvn binary there.
All you have to do now is to point to this location everytime using PATH. since bash searches in all the directory path mentioned in PATH, it will find mvn.
now open .bash_profile, if you dont have one just create one
vi ~/.bash_profile
Add the following:
#set JAVA_HOME
JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.7.0_40.jdk/Contents/Home
export JAVA_HOME
M2_HOME=/usr/local/apache-maven/apache-maven-3.1.1
export M2_HOME
PATH=$PATH:$JAVA_HOME/bin:$M2_HOME/bin
export PATH
save the file and type source ~/.bash_profile. This steps executes the commands in the .bash_profile file and you are good to go now.
open a new terminal and type mvn that should work.
Solutions above are good but they require ~/.bash_profile. /usr/local/bin is already in the $PATH and it can be confirmed by doing echo $PATH. Download maven and run the following commands -
$ cd ~/Downloads
$ tar xvf apache-maven-3.5.3-bin.tar.gz
$ mv apache-maven-3.5.3 /usr/local/
$ cd /usr/local/bin
$ sudo ln -s ../apache-maven-3.5.3/bin/mvn mvn
$ mvn -version
$ which mvn
Note: The version of apache maven would be the one you will download.
Here is what worked for me.
First of all I checked if M2_HOME variable is set env | grep M2_HOME. I've got nothing.
I knew I had Maven installed in the folder "/usr/local/apache-maven-3.2.2", so executing the following 3 steps solved the problem for me:
Set M2_HOME env variable
M2_HOME=/usr/local/apache-maven-3.2.2
Set M2 env variable
M2=$M2_HOME/bin
Update the PATH
export PATH=$M2:$PATH
As mentioned above you can save that sequence in the .bash_profile file if you want it to be executed automatically.
I got same problem, I tried all above, nothing solved my problem. Luckily, I solved the problem this way:
echo $SHELL
Output
/bin/zsh
OR
/bin/bash
If it showing "bash" in output. You have to add env properties in .bashrc file (.bash_profile i did not tried, you can try) or else
It is showing 'zsh' in output. You have to add env properties in .zshrc file, if not exist already you create one no issue.
The possible solution can be that maven is not installed in your mac system.
Use this command to install maven:
brew install maven
And, to verify, that it is successfully installed, run this command:
mvn -v
If it returns you maven version, then maven is successfully installed in your system.
steps to install maven :
download the maven file from http://maven.apache.org/download.cgi
$tar xvf apache-maven-3.5.4-bin.tar.gz
copy the apache folder to desired place $cp -R apache-maven-3.5.4 /Users/locals
go to apache directory $cd /Users/locals/apache-maven-3.5.4/
create .bash_profile $vim ~/.bash_profile
write these two command :
export M2_HOME=/Users/manisha/apache-maven-3.5.4
export PATH=$PATH:$M2_HOME/bin
7 save and quit the vim :wq!
restart the terminal and type mvn -version
I followed brain storm's instructions and still wasn't getting different results - any new terminal windows would not recognize the mvn command. I don't know why, but breaking out the declarations in smaller chunks .bash_profile worked. As far as I can tell, I'm essentially doing the same thing he did. Here's what looks different in my .bash_profile:
JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_221.jdk/Contents/Home
export PATH JAVA_HOME
J2=$JAVA_HOME/bin
export PATH J2
M2_HOME=/usr/local/apache-maven/apache-maven-2.2.1
export PATH M2_HOME
M2=$M2_HOME/bin
export PATH M2
You probably have 2 types of shell instances.
sh vs zsh.
Both can have different path defined.
Check your PATH environment variable by typing the below line in terminal
echo $PATH
To test you can change shell mode -
sh to zsh -> type zsh and press enter in terminal (notice $ changes to %)
zsh to sh -> type sh/bash and press enter in terminal (notice % changes to $)
In Both shell modes check for PATH env.
Make both same, or append path from other as needed.
Commands running in 1 shell and not in other would be sorted.
For some of you the cause might be using of other variables in the path to the maven directory. More details in the answer.
I'm trying to write a script shell (Mac OS X) for deploying my Awestruct site within a launch agent.
So, I have to generate site before deploying it. The command to generate site is :
awestruct -g
My script is myscript.sh :
cd /my/site/structure/base/directory
awestruct -g
This script is launched by the system when an event occurs.
But the problem is it doesn't know about awestruct...
My awestruct program is a part of my ruby installation and is added to my PATH variable.
When I run the script manually, it works (because it's my user who is lauynching it)
When the system detect the event and runs the script, it results as :
awestruct: command not found
The problem is the PATH...
If it works manually, then in the same prompt where it works, run command:
which awestruct
That will print the program file with full path, let's assume /usr/local/bin/awestruct, but use whatever it really is. Then use that in your script, for example:
cd /my/site/structure/base/directory
/usr/local/bin/awestruct -g
This assumes that there are no other environment variables, only defined for your account, which awestruct needs. If there are, then find out what they are, and add them to your script before running awestruct, for example with line:
export AWESTRUCT_ENVIRONMENT_VARIABLE=foobar
(Note: When you run the script normally like any program, that will not change the parent shell environment.)
You can also add the path to the executable in the PATH of the user that run the script and gets the error.
You could try something like :
$ su - <user_that_run_the_script>
$ echo "export PATH=$PATH:$(which awestruct)" >> ~/.bash_profile
$ source ~/.bash_profile
(For Linux users, use ~/.bashrc instead of ~/.bash_profile)
I'm using Windows XP with the latest version of Cygwin. If I set the following environment variable in my Windows system
JBOSS_HOME=C:/Program Files/jboss-4.2.3.GA
and then fire up Cygwin, I'm unable to switch to the inherited $JBOSS_HOME directory.
$ cd $JBOSS_HOME
cygwin warning:
MS-DOS style path detected: C:/Program
Preferred POSIX equivalent is: /cygdrive/c/Program
CYGWIN environment variable option "nodosfilewarning" turns off this warning.
Consult the user's guide for more details about POSIX paths:
http://cygwin.com/cygwin-ug-net/using.html#using-pathnames
-bash: cd: C:/Program: No such file or directory
Is it possible to define my system variable once in the Windows environment and then get Cygwin to interpret it so that I don't get this "No such file or directory" warning?
You could do one of two things...
Add a command to convert the path in your .bashrc file, like so...
export JBOSS_HOME=$( cygpath "$JBOSS_HOME" )
or
Just put the variable between quotes when referencing it, since Cygwin understands DOS style paths, even though it doesn't prefer them. The reason the command is failing for you is that there is a space in the path, so putting it in quotes will get the path to be read correctly as one arg...
cd "$JBOSS_HOME"
Note that you might still get that same "cygwin warning" in this case. In order to make that go away, you need to add nodosfilewarning to your CYGWIN var as the warning advises. You can do that by adding this in your .bashrc file...
export CYGWIN="${CYGWIN} nodosfilewarning"
I am using Eclispse with ShellED plugins,
I got the same notification, not knowing the accurate configuration,
I just add the export value into the script
'#!/bin/bash'
export CYGWIN="${CYGWIN} nodosfilewarning"
echo hello
This works for me
$ SEVENZIP="C:/Program Files/7-Zip"
$ read < <(cd "$SEVENZIP"; pwd)
$ cd "$REPLY"