All commands (14,187)

  • find all email addresses in a file, printing each match. Addresses do not have to be alone on a line etc. For example you can grab them from HTML-formatted emails or CSV files, etc. Use a combination of ...|sort|uniq$ to filter them. Show Sample Output


    3
    grep -Eio '([[:alnum:]_.]+@[[:alnum:]_]+?\.[[:alpha:].]{2,6})' file.html
    wires · 2009-06-16 20:19:47 9
  • Search for the string "search" and replace it with the string "replace", on all files with the extension php in the curret folder. Do also a backup of each file with the extension "bkp".


    4
    ruby -i.bkp -pe "gsub(/search/, 'replace')" *.php
    gustavgans · 2009-06-16 12:35:40 6
  • Good for summing the numbers embedded in text - a food journal entry for example with calories listed per food where you want the total calories. Use this to monitor and keep a total on anything that ouputs numbers. Show Sample Output


    3
    perl -ne '$sum += $_ for grep { /\d+/ } split /[^\d\-\.]+/; print "$sum\n"'
    obscurite · 2009-06-16 06:39:08 6
  • This command will open up the two files in FileMerge on OS X. You can also compare two directories. opendiff directory1 directory2 NOTE: FileMerge is a part of the OS X Developer Tools, available on the install disc.


    -3
    opendiff <file1> <file2>
    claytron · 2009-06-16 03:22:52 7
  • Tells sort to ignore all characters before the Xth position in the first field per line. If you have a list of items one per line and want to ignore the first two characters for sorting purposes, you would type "sort -k1.3". Change the "1" to change the field being sorted. The decimal value is the offset in the specified field to sort by.


    3
    sort -k1.x
    leper421 · 2009-06-16 00:04:21 7
  • If you're users have ever asked your script to email their reports in separate attachments instead of tar'ring them into one file, then you can use this. You'll need the mailx package of course. In Unix you'd want to add an additional parameter "-m" (uuencode foo.txt foo.txt; uuencode /etc/passwd passwd.txt)|mailx -m -s "Hooosa!" someone@cmdfu.com


    1
    (uuencode foo.txt foo.txt; uuencode /etc/passwd passwd.txt)|mailx -s "Pandaren!" someone@cmdfu.com
    LrdShaper · 2009-06-15 11:34:51 7
  • Uses process signal to play next selection


    1
    killall -2 mpg321
    dattaway · 2009-06-15 03:04:00 6
  • Pressing ESC then * will insert in the command line the results of the autocompletion. It's hard to explain but if you look the sample output or do echo ESC * you will understand quickly. By the way, few reminders about ESC : - Hold ESC does the same thing as tab tab - 'ESC .' inserts the last argument of last command (can be done many times in order to get the last argument of all previous commands) Show Sample Output


    67
    ESC *
    Josay · 2009-06-14 21:17:40 53
  • curl doesn't provide url-encoding for 'GET' data, it have an option '--data-urlencode', but its only for 'POST' data. Thats why I need to write down this commandline. With 'perl', 'php' and 'python', this is one liner, but just I wrote it for fun. Works in Ubuntu, will work in all linux varients(I hope it will work in unix varients also). Show Sample Output


    -3
    (Command too long..See sample Output..)
    mohan43u · 2009-06-14 20:34:37 136
  • This will extract all of the urls from a firefox session (including urls in a tab's history). The sessionstore.js file is in ~/.mozilla/firefox/{firefox profile}


    2
    sed -e "s/\[{/\n/g" -e "s/}, {/\n/g" sessionstore.js | grep url | awk -F"," '{ print $1 }'| sed -e "s/url:\"\([^\"]*\)\"/\1/g" -e "/^about:blank/d" > session_urls.txt
    birnam · 2009-06-14 15:08:31 11
  • Share your "now playing" Amarok song in twitter!


    6
    curl -u <user>:<password> -d status="Amarok, now playing: $(dcop amarok default nowPlaying)" http://twitter.com/statuses/update.json
    caiosba · 2009-06-14 02:42:34 6
  • Simple way to achieve a colored SVN diff


    16
    svn diff <file> | vim -R -
    caiosba · 2009-06-13 22:00:49 69

  • 4
    mysql -uadmin -p` cat /etc/psa/.psa.shadow` -Dpsa -e"select mail_name,name,password from mail left join domains on mail.dom_id = domains.id inner join accounts where mail.account_id = accounts.id;"
    BADmd · 2009-06-13 21:19:18 4
  • Obviously, you can replace 'man' command with any command in this command line to do useful things. I just want to mention that there is a way to list all the commands which you can execute directly without giving fullpath. Normally all important commands will be placed in your PATH directories. This commandline uses that variable to get commands. Works in Ubuntu, will work in all 'manpage' configured *nix systems. Show Sample Output


    4
    find `echo "${PATH}" | tr ':' ' '` -type f | while read COMMAND; do man -f "${COMMAND##*/}"; done
    mohan43u · 2009-06-13 19:56:24 6
  • You can convert any UNIX man page to .txt


    15
    man ls | col -b > ~/Desktop/man_ls.txt
    vigo · 2009-06-13 11:49:33 18
  • It's also possible to delay the extraction (echo "unrar e ... fi" |at now+20 minutes) wich is really convenient!


    4
    unrar e file.part1.rar; if [ $? -eq 0 ]; then rm file.part*.rar; fi
    mrttlemonde · 2009-06-13 11:11:43 7
  • Yes, it's useless.


    4
    a=`printf "%*s" 16`;b=${a//?/{0..1\}}; echo `eval "echo $b"`
    rhythmx · 2009-06-13 06:32:35 5
  • Chronic Bash function: chronic 3600 time # Print the time in your shell every hour chronic 60 updatedb > /dev/null # update slocate every minute Note: use 'jobs' to list background tasks and fg/bg to take control of them.


    3
    chronic () { t=$1; shift; while true; do $@; sleep $t; done & }
    rhythmx · 2009-06-13 05:57:54 16
  • You can flexibly change file pattern(*.tar.gz) and uncompress command to other job! Example, remove all files : for i in *.tar.gz; do rm $i; done (Just for example, because if you really want to remove file, simply use wildcard like this rm *.tar.gz)


    0
    for i in *.tar.gz; do tar -xzf $i; done
    kureikain · 2009-06-13 03:58:48 11

  • 0
    egrep -r '(render_message|multipart).*('`find app/views -name '*.erb' | grep mailer | sed -e 's/\..*//' -e 's/.*\///' | uniq | xargs | sed 's/ /|/g'`')' app/models
    foobarfighter · 2009-06-12 18:53:29 5
  • Find statistics for an Edirectory server form LDAPsearch. We have a lot more examples at: http://ldapwiki.willeke.com/wiki/Ldapsearch%20Examples The full command got shut off it is: ldapsearch -h ldapserver.willeke.com -p636 -e C:\mydata\treerootcert.der -b "" -s base -D cn=admin,ou=administration,dc=willeke,dc=com -w secretpwd "(objectclass=*)" chainings removeEntryOps referralsReturned listOps modifyRDNOps repUpdatesIn repUpdatesOut strongAuthBinds addEntryOps compareOps wholeSubtreeSearchOps modifyEntryOps searchOps errors simpleAuthBinds inOps oneLevelSearchOps inBytes abandonOps bindSecurityErrors securityErrors unAuthBinds outBytes extendedOps readOps dsaName directoryTreeName vendorVersion vendorName Show Sample Output


    1
    ldapsearch -h ldapserver.willeke.com -p389 -b "" -s base -D cn=admin,ou=administration,dc=willeke,dc=com -w secretpwd "(objectclass=*)" chainings removeEntryOps referralsReturned listOps modifyRDNOps repUpdatesIn repUpdatesOut strongAuthBinds addEntryOps
    jwilleke · 2009-06-12 13:28:18 4
  • Performs a mysqldump and gzip-compresses the output file with a timestamp in the resulting dump file. Inspect the file for integrity or fun with this command afterward, if you desire: zcat mysqldump-2009-06-12-07.41.01.tgz | less Show Sample Output


    1
    mysqldump [options] |gzip ->mysqldump-$(date +%Y-%m-%d-%H.%M.%S).gz
    linuxrawkstar · 2009-06-12 12:42:59 6
  • I've been auto-generating some complex GnuPlots; with multiplots the first plot of each group needs to be a 'plot' whereas the others need to be 'replots' to allow overplotting/autoscaling/etc to work properly. This is used to replace only the first instance of 'replot'. Show Sample Output


    5
    sed '/MARKER/{N;s/THIS/THAT/}'
    mungewell · 2009-06-12 02:29:50 4
  • command | my_irc Pipe whatever you want to this function, it will, if everything goes well, be redirected to a channel or a user on an IRC server. Please note that : - I am not responsible of flood excesses you might provoke. - that function does not reply to PINGs from the server. That's the reason why I first write in a temporary file. Indeed, I don't want to wait for inputs while being connected to the server. However, according to the configuration of the server and the length of your file, you may timeout before finishing. - Concerning the server, the variable content must be on the form "irc.server.org 6667" (or any other port). If you want to make some tests, you can also create a fake IRC server on "localhost 55555" by using netcat -l -p 55555 - Concerning the target, you can choose a channel (beginning with a '#' like "#chan") or a user (like "user") - The other variables have obvious names. Show Sample Output


    1
    function my_irc { tmp=`mktemp`; cat > $tmp; { echo -e "USER $username x x :$ircname\nNICK $nick\nJOIN $target"; while read line; do echo -e "PRIVMSG $target :$line"; done < $tmp; } | nc $server > /dev/null ; rm $tmp; }
    Josay · 2009-06-11 22:14:48 7
  • Nice reading in the morning on the way to work, but sadly the .tar.gz for the whole issue 66 is not on phrack's website yet. So use wget to download.


    2
    mkdir phrack66; (cd phrack66; for n in {1..17} ; do echo "http://www.phrack.org/issues.html?issue=66&id=$n&mode=txt" ; done | xargs wget)
    masterofdisaster · 2009-06-11 21:42:42 5
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Find usb device
I often use it to find recently added ou removed device, or using find in /dev, or anything similar. Just run the command, plug the device, and wait to see him and only him

untar undo

Create an SSH tunnel for accessing your remote MySQL database with a local port

Pronounce an English word using Merriam-Webster.com
Looks up a word on merriam-webster.com, does a screen scrape for the FIRST audio pronunciation and plays it. USAGE: Put this one-liner into a shell script (e.g., ~/bin/pronounce) and run it from the command line giving it the word to say: $ pronounce lek If the word isn't found in merriam-webster, no audio is played and the script returns an error value. However, M-W is a fairly complete dictionary (better than howjsay.com which won't let you hear how to pronounce naughty words). ASSUMPTIONS: GNU's sed (which supports -r for extended regular expressions) and Linux's aplay. Aplay can be replaced by any program that can play .WAV files from stdin. KNOWN BUGS: only the FIRST pronunciation is played, which is problematic if you wanted a particular form (plural, adjectival, etc) of the word. For example, if you run this: $ pronounce onomatopoetic you'll hear a voice saying "onomatopoeia". Playing the correct form of the word is possible, but doing so might make the screen scraper even more fragile than it already is. (The slightest change to the format of m-w.com could break it).

Add all unversioned files to svn
No need for grep, let awk do the match. This will not behave properly if the filenames contains whitespace, which is awk's default field separator.

Capture video of a linux desktop

list files recursively by size

Screen enable/disable loggin in all windows
The command when added in screenrc enables logging all open windows by using the C-l (control-l key combination) and disable by C-o . The lines need to be added in separate lines .

Put uppercase letters in curly brackets in a BibTeX database
It is often recommended to enclose capital letters in a BibTeX file in braces, so the letters will not be transformed to lower case, when imported from LaTeX. This is an attempt to apply this rule to a BibTeX database file. DO NOT USE sed '...' input.bib > input.bib as it will empty the file! How it works: $ /^\s*[^@%]/ Apply the search-and-replace rule to lines that start (^) with zero or more white spaces (\s*), followed by any character ([...]) that is *NOT* a "@" or a "%" (^@%). $ s===g Search (s) for some stuff and replace by other stuff. Do that globally (g) for all matches in each processed line. $ \([A-Z][A-Z]*\)\([^}A-Z]\|},$\) Matches at least one uppercase letter ([A-Z][A-Z]*) followed by a character that is EITHER not "}" and not a capital letter ([^}A-Z]) OR (|) it actually IS a "}", which is followed by "," at the end of the line ($). Putting regular expressions in escaped parentheses (\( and \), respectively) allows to dereference the matched string later. $ {\1}\2 Replace the matched string by "{", followed by part 1 of the matched string (\1), followed by "}", followed by the second part of the matched string (\2). I tried this with GNU sed, only, version 4.2.1.

Rename all files in lower case


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