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Make $JAVA_HOME easily changable in Ubuntu [closed]
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Put the environment variables into the global /etc/environment file:
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export JAVA_HOME=/usr/lib/jvm/java-1.5.0-sun
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Execute "source /etc/environment" in every shell where you want the variables to be updated:
$ source /etc/environment
Check that it works:
$ echo $JAVA_HOME
$...
Reducing MongoDB database file size
..., documents have been deleted and I was expecting the size of the database files to decrease accordingly.
16 Answers
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How to exclude certain directories/files from git grep search
Is there a way to exclude certain paths/directories/files when searching a git repository using git grep ? Something similar to the --exclude option in the normal grep command?
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HTML - Display image after selecting filename [duplicate]
...play: block; }
</style>
</head>
<body>
<input type='file' onchange="readURL(this);" />
<img id="blah" src="#" alt="your image" />
</body>
</html>
Script:
function readURL(input) {
if (input.files && input.files[0]) {
var ...
Ansible: Set variable to file content
...dule with ansible-playbook I want to set a variable to the contents of a file. Here's how I'm currently doing it.
4 Answ...
Git - How to use .netrc file on Windows to save user and password
Is it possible to use a .netrc file on Windows when I'm using Git to clone a remote repository with HTTP and user - password?
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Colorized grep — viewing the entire file with highlighted matches
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Here are some ways to do it:
grep --color -E 'pattern|$' file
grep --color 'pattern\|$' file
egrep --color 'pattern|$' file
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How to change XAMPP apache server port?
...ystem.
Choose a free port number (8012, for this exemple).
2. Edit the file "httpd.conf"
This file should be found in C:\xampp\apache\conf on Windows or in bin/apache for Linux.:
Listen 80
ServerName localhost:80
Replace them by:
Listen 8012
ServerName localhost:8012
Save the file.
A...
Test whether a glob has any matches in bash
If I want to check for the existence of a single file, I can test for it using test -e filename or [ -e filename ] .
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View markdown files offline [closed]
Is there a way to display .md files offline so we know what it will look like once it's uploaded in Github? I'm referring to showing the README.md file as it would come out in Github, and not as for editing purposes.
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