Linux Ask! is a Q & A web site specific for Linux related questions. Questions are collected, answered and audited by experienced Linux users.
How to revert a bad commit in SVN
Answer:
In SVN, if you have committed something wrong, how do you rollback it?
You cannot use the svn revert command since it has been commited, you need to do a merge instead
E.g. Rollback from current version to revision 98
# svn merge -r HEAD:98 http://example.com/svn/repos/demo/trunk
# svn commit -m "Reverting previous bad commit and going back to revision 98"
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)
Updated the Slave binary log if the updates are received from a MySQL master
Answer:
When the updates are received from a MySQL master to a slave, it will not be logged in the binary log of the slave server. Sometimes, you might want to enable it, for example, in order to setup a chained replication.
To do so, edit the MySQL configurations, e.g. /etc/my.cnf
..
log-slave-updates
..Don't forget to restart MySQL to take effect.
# /sbin/service mysqld restart
Import files and directories into a SVN repository
Answer:
To import files and directories into a SVN repository, you can use the svn import command.
E.g.
Import all files and directories under the current working directory "project1" to a local SVN repository
# cd /data/project1
svn import file:///data/svn/project1
Create a SVN Repository on local drive
Answer:
To create a SVN Repository on local drive, you can use the following command:
# cd /data/
# svnadmin create svn
Now you have created a SVN repository located at file:///data/svn/
