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Require ips and ipcalc
Even though --color is an option for 'ls' it will not display in color when doing 'ls -lah --color=always | less' to have color output when doing a directory listing and piping it out to page through results, replace less with most.
To install most if not installed, run:
sudo apt-get install most
This solution is similar to  except that it does not have any dependency on GNU Parallel. Also, it tries to minimize the impact on the running system (using ionice and nice).
Get the line containing "inet addr:" and the line before that, get down to only the first line, and then get the first word on that line, which should be the interface.
checking files in current and sub directories, finding out the files containing "sampleString" and removing the containing lines from the file.
* Beware that The command will update the original file [no backup].
The command can be extended if play with 'find' command together,
e.g. it is possible to execute on certain type of files: *.xml, *.txt... (find -name "*.xml" | grep....)
if anybody knows a better solution on that, please drop a comment. thx.
Allows for quick mass renaming, assuming the user has some familiarity with regular expressions. Basically, it replaces the original_file_name in the output of ls with
"mv -v original_file_name new_file_name"
and passes the output to sh.
Tres lineas en un shell script para copiar la base de datos diaramente
find all files in cur dir add to url and append to file
No junk, no pipe, one command, no subcommand - KISS
The following command creates a pool with a single raidz root vdev that consists of six disks.
Tries to reattach to screen, if it's not available, creates one.
created an alias "irc" for it, since sometimes i forget if there already is a screen session running with irssi, this way I avoid creating a new one by mistake.