Tips and Tricks: Difference between revisions
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{{Command|<nowiki>find . -regex '.*\(pdf\|doc\)'</nowiki>}} | {{Command|<nowiki>find . -regex '.*\(pdf\|doc\)'</nowiki>}} | ||
== SCP file transfer == | == SCP file transfer == | ||
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Open Dolphin -> Settings > Configure Dolphin -> Views -> Common Tab -> and mark -> Use the same view for all folders | Open Dolphin -> Settings > Configure Dolphin -> Views -> Common Tab -> and mark -> Use the same view for all folders | ||
== Package management (Portage) == | |||
=== To which package belongs file X === | |||
{{Root|equery belongs -f <dateiname>}} | |||
=== Which installed packages have USE-Flag X === | |||
{{Root|equery hasuse <useflag>}} | |||
=== Backup an installed package === | |||
{{Root|quickpkg net-www/apache}} | |||
After this you can install the package on another machine or do a fast downgrade if something went bad after an update. You can find the file under {{Path|/usr/portage/packages/All}} and in this example a symlink to the apache file in {{Path|/usr/portage/packages/net-www}}. To install the now precompiled binary use: | |||
{{Root|emerge --usepkgonly "<net-www/apache-2.2.4"}} | |||
=== Detect and get rid of leftover packages === | |||
{{Root|emerge depclean --pretend}} | |||
=== Change your current profile === | |||
{{Root|emerge eselect}} | |||
{{Root|eselect profile list}} | |||
{{Root|eselect profile set <nummer>}} | |||
[[Category:Software]] | [[Category:Software]] | ||
Revision as of 14:59, 22 September 2011
Useful commands
Recursively set directory permissions to 755
# find /var/www/path -type d -print0 | xargs -0 chmod -c 755
Recursively rename directory and files from ISO-8859-15 to UTF-8
$ convmv -f iso-8859-15 -t utf8 -r /var/www/path --preserve-mtimes --notest
Recursively search for files of a specitic type, e.g. documents and list them
$ find . -regex '.*\(pdf\|doc\)'
SCP file transfer
File transfer via commandline.
Upload file:
# scp /root/htdocsbackup.tar.bz2 root@remote-host.de:/root/
Download file:
# scp root@remote-host.de:/root/htdocsbackup.tar.bz2 /root/htdocsbackup.tar.bz2
Upload directory:
# scp -p -r /root/directory root@remote-host.de:/root
Download directory:
# scp -p -r root@remote-host.de:/root/directory /root
SSH tunnel
Very useful if the server you want to connect to has only the SSH port open and/or a firewall infront and you want to access for example a tomcat server running on port 8080.
# ssh -N -i /home/<user>/.ssh/id_dsa -L 7777:remote-host.de:8080 root@remote-host.de
After establishing the tunnel you can access the tomcat server of the remote machine port 8080 at your localhost port 7777.
KDE4 problems and workarounds
Reset to the default Plasma layout
Log out of KDE/X and delete from tty:
$ rm ~/.kde/share/config/plasma*
Change the Dolphin standard view to detailed view for ALL folders
Open Dolphin -> Settings > Configure Dolphin -> Views -> Common Tab -> and mark -> Use the same view for all folders
Package management (Portage)
To which package belongs file X
# equery belongs -f <dateiname>
Which installed packages have USE-Flag X
# equery hasuse <useflag>
Backup an installed package
# quickpkg net-www/apache
After this you can install the package on another machine or do a fast downgrade if something went bad after an update. You can find the file under /usr/portage/packages/All and in this example a symlink to the apache file in /usr/portage/packages/net-www. To install the now precompiled binary use:
# emerge --usepkgonly "<net-www/apache-2.2.4"
Detect and get rid of leftover packages
# emerge depclean --pretend
Change your current profile
# emerge eselect
# eselect profile list
# eselect profile set <nummer>