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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Copy a directory recursively without data/files

Display kernel profile of currently executing functions in Solaris.
Lockstat will sample the kernel 977 times per second, and print out the functions that it sees executing on the CPU during the sample. The -s 10 switch tells lockstsat to not only print that function, but also show the call stack (up to 10 deep).

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" }

print/scan lines starting at record ###
Useful for finding newly added lines to a file, tail + can be used to show only the lines starting at some offset. A syslog scanner would look at the file for the first time, then record the end_of_file record number using wc -l. Later (hours, days), scan only at the lines that were added since the last scan.

Debug SSH at the Maximum Verbosity Level
When debugging an ssh connection either to optimize your settings ie compression, ciphers, or more commonly for debugging an issue connecting, this alias comes in real handy as it's not easy to remember the '-o LogLevel=DEBUG3' argument, which adds a boost of debugging info not available with -vvv alone. Especially useful are the FD info, and the setup negotiation to create a cleaner, faster connection.

Restrict the bandwidth for the SCP command
the command is obvious, I know, but maybe not everyone knows that using the parameter "-l" you can limit the use of bandwidth command scp. In this example fetch all files from the directory zutaniddu and I copy them locally using only 10 Kbs

Convert files from DOS line endings to UNIX line endings
This method will also convert mac line endings.

Check if *hardware* is 32bit or 64bit
This command tell you if your hardware is 32 or 64 bits even if you install a 32bits OS on a 64 bits hardware. If your distro don't support the -q switch, try doing : $ grep &>/dev/null '\' /proc/cpuinfo && echo 64 bits || echo 32 bits

Reinstall Grub

recursive base64 encoding -- Cipher for the Poor ?
Just for fun, I searched a simple way to encrypt some text. Simple base64 encoding seemed a good start so I decided to "amplify" encoding using repeted base64 encoding. Of course, this is not really secure but can be useful to hide datas to most part of humans ;). Do not hesitate to provide better solutions or else.

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