Linux Ask! is a Q & A web site specific for Linux related questions. Questions are collected, answered and audited by experienced Linux users.
Turn off magic_quotes_gpc in PHP
Answer:
magic_quotes_gpc is a legacy PHP function that no longer be supported in PHP 6.0. So you should disable them to make sure your application not break in the future version of PHP.
To disable it, edit the php.ini
vi /etc/php.ini
Locate and set
magic_quotes_gpc = off;Remember to restart web server such as Apache if needed.
List of remote gems on rubyforge.org
Answer:
To list all the available gems on rubyforge.org, use this command:
# gem list --remote
For example, to search for all rails related gems, use
# gem list --remote | grep "\-rails"
List all the installed gems
Answer:
To list all the installed gems on your machine, simply execute the following command:
# gem list --local
*** LOCAL GEMS ***
abstract (1.0.0)
actionmailer (3.0.9)
actionpack (3.0.9)
activemodel (3.0.9)
activerecord (3.0.9)
activeresource (3.0.9)
activesupport (3.0.9)
arel (2.0.10)
builder (2.1.2)
erubis (2.6.6)
i18n (0.5.0)
mail (2.2.19)
mime-types (1.16)
polyglot (0.3.1)
rack (1.2.3)
rack-mount (0.6.14)
rack-test (0.5.7)
rake (0.9.2)
treetop (1.4.9)
tzinfo (0.3.28)
Revert uncommitted change in Git
Answer:
To revert the changes of a uncommitted file in Git, you need to use the following command:
# git checkout file
Changing the default Java environment in Ubuntu
Answer:
If you have more than one JVM (Java Virtual Machine) installed in your Ubuntu server, e.g. OpenJDK and the Oracle JDK, you can easily select them using the following command:
# sudo update-alternatives --config java
Following the instruction and you can easily set them as you want.
