All commands (14,187)

  • Testing ftp server status

    I must monitorize a couple of ftp servers every morning WITHOUT a port-scanner Instead of ftp'ing on 100 ftp servers manually to test their status I use this loop. It might be adaptable to other services, however it may require a 'logout' string instead of 'quit'. The file ftps.txt contains the full list of ftp servers to monitorize.


    1
    for host in $(cat ftps.txt) ; do if echo -en "o $host 21\nquit\n" |telnet 2>/dev/null |grep -v 'Connected to' >/dev/null; then echo -en "FTP $host KO\n"; fi done
    vlan7 · 2010-01-26 15:34:18 3
  • Recursively grep thorugh directory for string in file.

    Recursive grep through directory for file.


    -5
    find directory/ |xargs grep -i "phrase"
    tuxtutorials · 2010-01-26 14:56:56 3
  • Do some learning...

    no loop, only one call of grep, scrollable ("less is more", more or less...)


    12
    ls /usr/bin | xargs whatis | grep -v nothing | less
    michelsberg · 2010-01-26 12:59:47 32
  • Copy all JAR files to folder /tmp

    Useful for Maven multimodule projects, where you want to extract all packaged jar files.


    -3
    find . -iname "*.jar" -exec cp '{}' /tmp/ \;
    unixmonkey6754 · 2010-01-26 12:19:15 3
  • Copy specific files recursively using the same tree organization.

    This command has been used to overwrite corrupted "entries" files of a corrupted subversion working copy. Note the --files-from input format.


    3
    rsync -vd --files-from=<(find . -name entries -print ) . ../target_directory
    samyboy · 2010-01-26 09:41:12 6
  • Toggle the Touchpad on or off

    This command toggles the touchpad on and off, when it's on, the right side scroll strip (annoying) and the tap-clicking are disabled, you can change this by changing occurances of 2 in the command to 0. this whole command can then be given a keyboard shortcut so that the touchpad is disableable without using a special fn key (which linux doesn't recognize on some computers) or a seperate button.


    -3
    if [ $(synclient -l | grep TouchpadOff | awk '{print $3}') = "2" ]; then synclient TouchpadOff=1; elif [ $(synclient -l | grep TouchpadOff | awk '{print $3}') == "1" ]; then synclient TouchpadOff=2; else synclient TouchpadOff=2; fi
    GinoMan2440 · 2010-01-26 07:52:55 5
  • Convert all old SVN repositories in one directory to new format


    1
    find . -maxdepth 1 -type d -exec 'mv "{}" "{}-old" && svnadmin create "{}" && svnadmin recover "{}-old" && svnadmin dump "{}-old" | svnadmin load "{}" && rm -rf "{}-old"' \;
    raspi · 2010-01-26 07:06:43 3
  • Do some learning...


    7
    for i in $(ls /usr/bin); do whatis $i | grep -v nothing; done | more
    Abiden · 2010-01-26 06:15:54 7
  • Extract all 7zip files in current directory taking filename spaces into account


    -2
    7za x \*.zip
    andrew112358 · 2010-01-25 21:50:15 2
  • Fast tape rewind

    Traditionally we rewind a tape using this syntaxis: mt -f /dev/rmt/0cbn rewind Redirecting the dispositive to nothing as shown above is faster. Less typing is always better.


    2
    < /dev/rmt/0cbn
    vlan7 · 2010-01-25 20:32:38 3
  • Rename all the files in the current directory into their sha1sum


    -1
    find . -maxdepth 1 -type f| xargs sha1sum | sed 's/^\(\w*\)\s*\(.*\)/\2 \1/' | while read LINE; do mv $LINE; done
    foremire · 2010-01-25 20:21:01 11
  • Insert the last argument of the previous command

    for example if you did a: ls -la /bin/ls then ls !$ is equivalent to doing a ls /bin/ls


    9
    !$
    ringlerun · 2010-01-24 17:59:52 23
  • Top Command in batch mode

    running top command in batch mode. it is usefull if you want to redirect the output in a file. Show Sample Output


    2
    top -b -n 1
    r00t4u · 2010-01-24 16:17:30 5
  • Delete residues configuration files


    0
    dpkg -l | grep ^rc | awk '{print $2}' | sudo xargs dpkg -P
    kayowas · 2010-01-24 14:23:37 4
  • Extract all 7zip files in current directory taking filename spaces into account

    Use find's built-in ability to call programs. Alternatively, find -maxdepth 1 -type f -name "*.7z" -print0 | xargx -0 -n 1 7zr e would work, too.


    -1
    find -maxdepth 1 -type f -name "*.7z" -exec 7zr e '{}' ';'
    minnmass · 2010-01-23 19:50:10 4
  • Count files created by date/modification


    0
    find . -type f -exec stat \{\} \; | grep Modify: | awk '{a[$2]++}END{for(i in a){print i " : " a[i] }}' | sort
    pepin · 2010-01-23 07:55:16 6
  • Restore the keyboard for qwerty users.

    Restores the keyboard so your partner who expects the keys to correspond to what they're labelled can type (in qwerty).


    -2
    setxkbmap us
    keturn · 2010-01-23 04:08:46 4
  • Set X keymap to dvorak and fix the Ctrl key.

    What to type to fix the keyboard when it's all qwerty and/or the modifier key to the left of the 'a' is doing something unexpected. In addition, I've also been known to use the altwin:meta_win and compose:ralt flags.


    0
    setxkbmap dvorak '' ctrl:nocaps
    keturn · 2010-01-23 04:04:59 3
  • A command to post a message to Twitter that includes your geo-location and a short URL.

    A command to post a message to Twitter that includes your geo-location and a short URL. The link shortening service is provide by TinyURL, the geo-location service is provided by HostIP and the IP address lookup service is provided by AppSpot. This is an upgrade of an of one of my previous contributions: http://tinyurl.com/yd2xtzv.


    4
    curl --user "USERNAME:PASSWORD" -d status="MESSAGE_GOES_HERE $(curl -s tinyurl.com/api-create.php?url=URL_GOES_HERE) $(curl -s api.hostip.info/get_html.php?ip=$(curl ip.appspot.com))" -d source="cURL" twitter.com/statuses/update.json -o /dev/null
    o0110o · 2010-01-23 02:21:57 11
  • Upload file to remote server using SCP


    -7
    scp /home/svnlabs.txt root@92.178.0.56:/home/
    bakhru · 2010-01-22 21:19:37 5
  • Find unused IPs on a given subnet


    10
    nmap -T4 -sP 192.168.2.0/24 && egrep "00:00:00:00:00:00" /proc/net/arp
    wincus · 2010-01-22 20:36:43 8
  • Extract all 7zip files in current directory taking filename spaces into account


    3
    for file in *.7z; do 7zr e "$file"; done
    jmcantrell · 2010-01-22 18:42:20 11
  • Upload - rsync using key pair

    Connect EC2 server with public keys "/root/.ec2/id_rsa-gsg-keypair" or "/root/.ec2/keypair.pem"


    -2
    rsync -avvvz -e "ssh -i /root/.ec2/id_rsa-gsg-keypair" --archive --progress /root/.ec2/id_rsa-gsg-keypair root@ec2-75-101-212-113.compute-1.amazonaws.com:/root
    lalit241 · 2010-01-22 17:21:58 3
  • Upload file to remote server using SCP

    Upload file to remote server using SCP


    -9
    scp -P 22 /home/svnlabs.txt root@92.178.0.56:/home/svnlabs.txt
    lalit241 · 2010-01-22 17:21:07 3
  • Upload file to remote server using SCP

    Upload file to remote server using SCP


    -6
    scp -P 22 /home/svnlabs.txt root@92.178.0.56:/home/svnlabs.txt
    svnlabs · 2010-01-22 16:55:25 4
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computes the most frequent used words of a text file
using $ cat WAR_AND_PEACE_By_LeoTolstoi.txt | tr -cs "[:alnum:]" "\n"| tr "[:lower:]" "[:upper:]" | sort -S16M | uniq -c |sort -nr | cat -n | head -n 30 ("sort -S1G" - Linux/GNU sort only) will also do the job but as some drawbacks (caused by space/time complexity of sorting) for bigger files...

SVN Status log to CSV
Note you have also the --xml option ;)

Find all the files more than 10MB, sort in descending order of size and record the output of filenames and size in a text file.
This command specifies the size in Kilobytes using 'k' in the -size +(N)k option. The plus sign says greater than. -exec [cmd] {} \; invokes ls -l command on each file and awk strips off the values of the 5th (size) and the 9th (filename) column from the ls -l output to display. Sort is done in reversed order (descending) numerically using sort -rn options. A cron job could be run to execute a script like this and alert the users if a dir has files exceeding certain size, and provide file details as well.

Indent all the files in a project using emacs
use -iname \*[.ch] instead of -iname \*.c -o -iname \*.h

Release memory used by the Linux kernel on caches
The Linux kernel uses unused memory in caches. When you execute "free" you never get the "real" available memory.

capture selected window
I think, this is a shorter one :)

Console clock
Shows a simple clock in the console -t param removes the watch header Ctrl-c to exit

tail: watch a filelog
-f file(s) to be monitorized -n number of last line to be printed on the screen in this example, the content of two files are displayed

Find the location of the currently loaded php.ini file
Quick and easy way to find out which php.ini file is being used. Especially useful if you just need to find the location of the file for editing purposes.

Write comments to your history.
A null operation with the name 'comment', allowing comments to be written to HISTFILE. Prepending '#' to a command will *not* write the command to the history file, although it will be available for the current session, thus '#' is not useful for keeping track of comments past the current session.

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