Commands by warkruid (2)

  • Listen and sort your music, with prompt for deleting (minimal alternative version)

    The glob pattern * expands to all files, no need for the 'ls' command. The quotes around "$i" make sure filenames with spaces in them are handled correctly. mplayer determines if it is a media file and plays it, or gives errors and the loop asks if this file has to be removed. Show Sample Output


    -1
    for i in *; do mplayer "$i" && rm -i "$i"; done
    warkruid · 2013-12-26 17:13:23 10
  • Poor man's

    I sometimes have use an usb stick to distribute files to several standalone "internet" pc's. I don't trust these machines period. The sticks I have do not have a write protection. So as a added security measure I fill the unused space on the (small) usb stick with a file with randomly generated bits. Any malware that tries to write to this stick will find no space on it. Tested on slackware 14 Note: you may need root access to write to the device. This depends on your mount options. Show Sample Output


    0
    set +e +u; dd if=/dev/urandom of="/media/usb1/$$";sync;sync
    warkruid · 2013-12-22 14:35:53 1

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back ssh from firewalled hosts
host B (you) redirects a modem port (62220) to his local ssh. host A is a remote machine (the ones that issues the ssh cmd). once connected port 5497 is in listening mode on host B. host B just do a ssh 127.0.0.1 -p 5497 -l user and reaches the remote host'ssh. This can be used also for vnc and so on.

Find the package that installed a command

Detach a process from the current shell
Continue to execute the command in background even though quitting the shell.

a function to find the fastest DNS server
http://public-dns.info gives a list of online dns servers. you need to change the country in url (br in this url) with your country code. this command need some time to ping all IP in list.

Merge Two or More PDFs into a New Document
require the pdftk package

Change every instance of OLD to NEW in file FILE
Very quick way to change a word in a file. I use it all the time to change variable names in my PHP scripts (sed -i 's/$oldvar/$newvar/g' index.php)

ettercap..
There weren't any one liners for ettercap on this site... tisk tisk :-) (of course you'll have to plugin your own values for the variables..)

Sort IPV4 ip addresses

Remove security limitations from PDF documents using ghostscript (for Windows)
#4345 also works under windows

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