Commands by ktoso (3)

  • Yeah I know it's been up here a million times, but this service is a really clean and nice one. Nothing but your IP address on it. Actually I was to write something like this, and noticed this on appspot... ;) Show Sample Output


    25
    curl ip.appspot.com
    ktoso · 2009-10-31 21:11:10 6
  • After executing this, click on a window you want to track X Window events in. Explaination: "xev will track events in the window with the following -id, which we get by greping window information obtained by xwininfo" Show Sample Output


    2
    xev -id `xwininfo | grep 'Window id' | awk '{print $4}'`
    ktoso · 2009-09-19 22:47:16 2
  • Can be used to discover what programms create internet traffic. Skip the part after awk to get more details. Has anyone an idea why the uniq doesn't work propperly here (see sample output)? Show Sample Output


    -1
    netstat -lantp | grep -i establ | awk -F/ '{print $2}' | uniq | sort
    ktoso · 2009-09-19 13:54:36 3

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Perl One Liner to Generate a Random IP Address

Makes the permissions of file2 the same as file1
Also works with: $chgrp --reference file1 file2 $chown --reference file1 file2

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Show apps that use internet connection at the moment.
show only the name of the apps that are using internet

Convert seconds to [DD:][HH:]MM:SS
Converts any number of seconds into days, hours, minutes and seconds. sec2dhms() { declare -i SS="$1" D=$(( SS / 86400 )) H=$(( SS % 86400 / 3600 )) M=$(( SS % 3600 / 60 )) S=$(( SS % 60 )) [ "$D" -gt 0 ] && echo -n "${D}:" [ "$H" -gt 0 ] && printf "%02g:" "$H" printf "%02g:%02g\n" "$M" "$S" }

remove all spaces from all files in current folder

prevents replace an existing file by mistake
Use set +o noclobber and you will be able to replace files again

Print github url for the current url
Works for repos cloned via ssh or https.

Display or use a random file from current directory via a small bash one-liner
An other way to run it ( playing a random file ending with avi, flv or mpeg ) from a specified dir and a specified type of extension : making MOVIE array with a glob : $ MOVIE=( /PATH/TO/MY/FAVORITE/MOVIES/*.{avi,flv,mpeg} ) playing the random file from a random key from the array $ mplayer ${MOVIE[ RANDOM % ( ${#i[@]} + 1 ) ]]} I use only globs and a bash array. I use GNU bash, version 3.2.48

list block devices
Shows all block devices in a tree with descruptions of what they are.


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