“$0” is a variable returning the name of the script that you call it in — so running “./$0&” twice amounts to the script running itself in a separate process twice. Show Sample Output
Same as: 1 rpm -ivh package.rpm 2 yum localinstall package.rpm 3 Edit /etc/yum.conf or repository.repo and change the value of gpgcheck from 1 to 0 (!dangerous)
Returns code of current status of pidgin accounts via dbus interface Show Sample Output
So your boss wants to know how much memory has been assigned to each virtual machine running on your server... here's how to nab that information from the command line while logged in to that server Show Sample Output
--vrdp on enables VirtualBox RDP server for the VM --vrdpport 3389 ndicates the TCP port that the server will accept RDP connections direct to the VM (for each VM is assigned a different port) --vrdpauthtype external RDP console gives access to the VM Host physical users via authentication In fact, in the 3.1.x version of VirtualBox, the external value for the parameter --vrdpauthtype allows access via RDP only to the user who started the VM. The workaround is to add the user that runs the VM to shadow group, using the command
Yep, is hard, but is a way more flexible using pipe.
Shows the first IP on named interface including the network size Show Sample Output
This is just another example of what the nocache package is useful for, which I described in http://www.commandlinefu.com/commands/view/12357/ and that provides the commands
nocache <command to run with page cache disabled>
cachedel <single file to remove from page cache>
cachstats <single file> # to get the current cache state
Often, we do not want to disable caching, because several file reads are involved in a command and operations would be slowed down a lot, due to massive disk seeks. But after our operations, the file sits in the cache needlessly, if we know we're very likely never touching it again.
cachedel helps to reduce cache pollution, i.e. frequently required files relevant for desktop interaction (libs/configs/etc.) would be removed from RAM.
So we can run cachedel after each data intensive job. Today I run commands like these:
<compile job> && find . -type f -exec cachedel '{}' \; &> /dev/null # no need to keep all source code and tmp files in memory
sudo apt-get dist-upgrade && find /var/cache/apt/archives/ -type f -exec cachedel '{}' \; # Debian/*buntu system upgrade
dropbox status | grep -Fi idle && find ~/Dropbox -type f -exec cachedel '{}' \; &> /dev/null # if Dropbox is idle, remove sync'ed files from cache
https://github.com/Feh/nocache
http://packages.debian.org/search?keywords=nocache
http://packages.ubuntu.com/search?keywords=nocache
http://askubuntu.com/questions/122857
* lowQ/ is the output directory * pass quality level from 1 to 100
Requires either imagemagick or graphicsmagic utility.
Hi glaudiston, you can save a few chars by leaving out cat and pipe and still enjoy the added flexibility.
Translate the X selection from German to English. The tw program is available from Savannah: http://mirror.its.uidaho.edu/pub/savannah/twandgtw/ I'm posting this because the base Debian system also does not include curl.
if you want to only print the IP address from a file. In this case the file will be called "iplist" with a line like "ip address 1.1.1.1" it will only print the "1.1.1.1" portion
Learning cardinal and ordinal numbers in Spanish, with the best sounds files, try to get the best way to improve youLearning cardinal and ordinal numbers in Spanish, with the best sounds files, try to get the best way to improve your vocabulary.
This function uses xmllint to evaluate xpaths. Usage: xpath /path/to/element XMLfile
Note between the last there is no plus sign
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