I wanted all the 'hidden' .flv files from the http link in the command line; wget seemed appropriate, fed with output from lynx, grep the flv files and the normalised via sed (to remove the numeric bullet). Similar to the 'Grab mp3 files' fu. Replace link with your own, grep arg with something more interesting ;) See here for something along the same lines... http://www.commandlinefu.com/commands/view/1006/grab-mp3-files-from-your-favorite-netcasts-mp3blog-or-sites-that-often-have-good-mp3s Hope you find it useful! Improvements welcome, naturally.
The example command deletes all aliases for network interface 'em0' assuming that the aliases have netmask of 255.255.255.255 and the master IP has some other netmask (such as 255.255.255.0). See here -> http://my.galagzee.com/2009/07/22/deleting-all-network-interface-aliases/ for more on the rationale of this command.
Pipe any output to "grep ." and blank lines will not be printed.
-exec works better and faster then using a pipe
This will download a Youtube playlist and mostly anything http://code.google.com/apis/youtube/2.0/reference.html#Video_Feeds The files will be saved by $id.flv
The grep switches eliminate the need for awk and sed. Modifying vim with -p will show all files in separate tabs, -o in separate vim windows. Just wish it didn't hose my terminal once I exit vim!!
Searches all files,dirs (also hidden) recursively
If you want prepend/append text just wrap in echo:
echo Connected: `netstat -an|grep -ci "tcp.*established"`
Show Sample Output
Sample command to obtain a list of geographic localization for established connections, extracted from netstat. Need geoiplookup command ( part of geoip package under CentOS) Show Sample Output
Extracts the model name of the CPU and displays it on screen. Show Sample Output
That makes a function you can put in your ~/.bashrc to run it when you need in any term with an IP as argument Show Sample Output
Substitute feh for the image viewer of your choice. display (part of imagemagick) seems to be a popular choice.
it provides the ratio used for the RAM and The SWAP under Linux. When swappiness is high, Swap usage is high. When swappiness is low, Ram usage is high. Show Sample Output
Searches all log files (including archived bzip2 files) for invalid user and PAM authentication errors, both of which are indicative of brute force attempts at logging into computer. A list of all unique IP addresses and domain names is appended to hosts.deny. The command (and grep error messages) will work on Mac OS X 10.6, small adjustments may be needed for other OSs.
Shows how many Windows and Linux devices are on your network. May add support for others, but that's all that are on my network right now. Show Sample Output
The loop is to compare cookies. You can remove it...
Maybe you wanna use curl...
curl www.commandlinefu.com/index.php -s0 -I | grep "Set-Cookie"
Get mac address listed for all interfaces. Show Sample Output
Depending on the TERM, the terminfo version, ncurses version, etc.. you may be using a varied assortment of terminal escape codes. With this command you can easily find out exactly what is going on.. This is terminal escape zen!
( 2>&2 strace -f -F -e write -s 1000 sh -c 'echo -e "initc\nis2\ncnorm\nrmso\nsgr0" | tput -S' 2>&1 ) | grep -o '"\\[^"]*"' --color=always
"\33]4;%p1%d;rgb:%p2%{255}%*%{1000}%/%2.2X/%p3%{255}%*%{1000}%/%2.2X/%p4%{255}%*%{1000}%/%2.2X\33\\\33[!p\33[?3;4l\33[4l\33>\33[?12l\33[?25h\33[27m\33(B\33[m"
Lets say you want to find out what you need to echo in order to get the text to blink..
echo -e "`tput blink`This will blink`tput sgr0` This wont"
Now you can use this function instead of calling tput (tput is much smarter for portable code because it works differently depending on the current TERM, and tput -T anyterm works too.) to turn that echo into a much faster executing code. tput queries files, opens files, etc.. but echo is very strait and narrow.
So now you can do this:
echo -e "\33[5mThis will blink\33(B\33[m This wont"
More at http://www.askapache.com/linux-unix/bash_profile-functions-advanced-shell.html
Show Sample Output
This command will output the total number of files in a SVN Repository. Show Sample Output
This is easy to type if you are looking for a few (hundred) "missing" megabytes (and don't mind the occasional K slipping in)...
A variation without false positives and also finding gigabytes (but - depending on your keyboard setup - more painful to type):
du -hs *|grep -P '^(\d|,)+(M|G)'|sort -n
(NOTE: you might want to replace the ',' according to your locale!)
Don't forget that you can
modify the globbing as needed! (e.g. '.[^\.]* *' to include hidden files and directories (w/ bash))
in its core similar to:
http://www.commandlinefu.com/commands/view/706/show-sorted-list-of-files-with-sizes-more-than-1mb-in-the-current-dir
Show Sample Output
Prints the top 10 memory consuming processes (with children and instances aggregated) sorted by total RSS and calculates the percentage of total RAM each uses. Please note that since RSS can include shared libraries it is possible for the percentages to add up to more that the total amount of RAM, but this still gives you a pretty good idea. Also note that this does not work with the mawk version of awk, but it works fine with GNU Awk which is on most Linux systems. It also does not work on OS X. Show Sample Output
Prints a log of phonecalls placed from/to an asterisk server, formated into an easily readable table. You can use partial number/queue matches, or use .* to match everything. Show Sample Output
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