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Ubuntu - How to Check JAVA version on Ubuntu

July 27, 2011

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To check that the JRE is properly installed in Ubuntu, running this following command from a terminal.

# java -version

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How to Change Group Owner in Linux

Use this command: $ chgrp <groupname> <filename> Example: $ chgrp apache configuration.php

CentOS - How to Display the Permissions of File in CentOS

Q. How do I list or display the permission of a file using ssh? I don’t have GUI installed on a remote Linux computer. A. You need to use ls command with -l option. File access permissions are displayed in the first column of the output, after the character for file type. ls command List information about the FILEs. If no argument is given it will use the current directory by default. Task: List a file's access permissions Type ls -l command as follows to display permission for /etc/passwd file: $ ls -l /etc/passwd Output -rw-r--r-- 1 root root 2453 Jul 17 16:25 /etc/passwd Understanding the file permission File access permissions appear in the first column of the output i.e. -rw-r--r-- The first character - is nothing but the file type. – means regular file and d means directory. The next three characters (rw-) specify permissions for the user who owns the file The next three (r--) specify permissions for all members of the group that owns the file. Finall

Google Drive vs. Dropbox, SkyDrive, SugarSync, and Others: A Cloud Sync Storage Face-Off

Google's very own "Loch Ness monster," also known as Google Drive, has finally launched . It's the new face of Google Documents, and it's also Google's oft-rumored Dropbox-killer. It enters a scene crowded with competitors besides Dropbox that let you sync multiple folders, collaborate with friends, and stream data to your mobile device — so how does Drive fare? We'll take a look at the top apps that let you sync files between all of your devices automatically, share files using password protection, pick which folders you want to sync, and do anything else you might want to do with a syncing app. While our evaluations of each app aren't full-on reviews, they are encapsulations of where each app excels and what makes each unique. Refer to the chart at the bottom of the page for full breakdowns of each application. Google Drive While Google Drive isn't much more than a Docs rebranding that syncs to a folde

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Ubuntu - How to Check JAVA version on Ubuntu

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