Linux Ask! is a Q & A web site specific for Linux related questions. Questions are collected, answered and audited by experienced Linux users.
Compress and decompress file using 7zip
Answer:
7zip is a well known compression program if you need a very small file size, i.e. high compression ratio.
To install under Ubuntu/Debian:
# sudo apt-get install p7zip
To compress a file
# p7zip test.txt
To decompress a file
# p7zip -d test.txt.7z
Add a User in Linux
Answer:
Add a User in Linux, just use the useradd command:
# sudo useradd -d /home/john -m john
The above command will create the user john and create a home directory which is at /home/john
Remove default Debian/Ubuntu default Apache welcome page
Answer:
To remove the Apache default welcome page under Debian/Ubuntu,
1. Remove the welcome page configuration
# a2dissite default2. Restart Apache
# sudo /etc/init.d/apache2 restart That's all.
How to check which mime types are supported by your Debian/Ubuntu
Answer:
The /etc/mime.types file is the system-wide rules which defined for mapping filename suffices to mime types. Your Apache on Debian based Linux will read this file and set the correct Content-type header for these files when serving to users.
# cat /etc/mime.typesCheck Debian version information
Answer:
To check the Debian version information in Debian/Ubuntu
Try:
# cat /etc/debian_version
squeeze/sid
