Troca de conhecimentos sobre o uso da linha de comando e referencia direta ao site commandlinefu.com.
Monitor bandwidth by pid
24 de Outubro de 2009, 0:00 - sem comentários ainda$ nethogs -p eth0
Nethogs is a useful tool for monitor bandwidth consumption by pid. Tested on Debian an CentOs
by David Winterbottom (codeinthehole.com)
To print a specific line from a file
15 de Outubro de 2009, 0:00 - sem comentários ainda$ sed -n 5p <file>
You can get one specific line during any procedure. Very interesting to be used when you know what line you want.
by David Winterbottom (codeinthehole.com)
List only the directories
8 de Outubro de 2009, 0:00 - sem comentários ainda$ ls -d */
-d: list directory entries instead of contents, and do not dereference symbolic links
by David Winterbottom (codeinthehole.com)
backup all your commandlinefu.com favourites to a plaintext file
30 de Setembro de 2009, 0:00 - sem comentários ainda$ clfavs(){ URL="http://www.commandlinefu.com";wget -O - --save-cookies c --post-data "username=$1&password=$2&submit=Let+me+in" $URL/users/signin;for i in `seq 0 25 $3`;do wget -O - --load-cookies c $URL/commands/favourites/plaintext/$i >>$4;done;rm -f c;}
Usage: clfavs username password num_favourite_commands file_in_which_to_backup
by David Winterbottom (codeinthehole.com)
Clean up poorly named TV shows.
29 de Setembro de 2009, 0:00 - sem comentários ainda$ rename -v 's/.*[s,S](\d{2}).*[e,E](\d{2}).*\.avi/'SHOW NAME'\ S$1E$2.avi/' poorly.named.file.s01e01.avi
Replace 'SHOW NAME' with the name of the TV show.
Add -n to test the command without renaming files.
Check the 'sample output'.
by David Winterbottom (codeinthehole.com)
Change user, assume environment, stay in current dir
28 de Setembro de 2009, 0:00 - sem comentários ainda$ su -- user
I've used this a number of times troubleshooting user permissions. Instead of just 'su - user' you can throw another hyphen and stay in the original directory.
by David Winterbottom (codeinthehole.com)
List Network Tools in Linux
25 de Setembro de 2009, 0:00 - Um comentário$ apropos network |more
Get all the networking related commands for your distro
by David Winterbottom (codeinthehole.com)
Remove blank lines from a file using grep and save output to new file
25 de Setembro de 2009, 0:00 - sem comentários ainda$ grep . filename > newfilename
by David Winterbottom (codeinthehole.com)
Save current layout of top
23 de Setembro de 2009, 0:00 - sem comentários ainda$ <Shift + W>
'top' has fancy layout modes where you can have several windows with different things displayed. You can configure a layout and then save it with 'W'. It will then restored every time you run top.
E.g. to have to colored windows, one sorted by CPU usage, the other by memory usage, run top
top
then press the keys
<A> <z> <a> <-> <a> <z> <a> <-> <a>
and then as you don?t want to repeat this the next time:
<W>
by David Winterbottom (codeinthehole.com)
Execute a command with a timeout
23 de Setembro de 2009, 0:00 - sem comentários ainda$ timeout 10 sleep 11
by David Winterbottom (codeinthehole.com)
