Commands using as (7)

  • Tested on Fedora 12. This function will take a man page and convert it to pdf, saving the output to the current working directory. In Gnome, you can then view the output with "gnome-open file.pdf", or your favorite pdf viewer.


    15
    function man2pdf(){ man -t ${1:?Specify man as arg} | ps2pdf -dCompatibility=1.3 - - > ${1}.pdf; }
    SuperFly · 2009-11-27 12:49:49 4
  • Simply pass an argument to the script to convert the manual page to a PDF: man2pdf drutil


    4
    function man2pdf(){ man -t ${1:?Specify man as arg} | open -f -a preview; }
    piXelz · 2009-02-16 18:29:35 7
  • Just give it an artist and/or song at the end of the command as shown. Show Sample Output


    4
    python2 -c 'import urllib2 as u, sys as s, json as j, subprocess as p;p.call(["mplayer", u.urlopen(j.loads(u.urlopen("http://ex.fm/api/v3/song/search/%s" % "+".join(s.argv[1:])).read())["songs"][0]["url"]).geturl().split("#")[0]])' lenny kravitz fly away
    nagev · 2013-09-21 02:25:51 0
  • ZenCart uses a MD5 with a salt to secure its passwords. If you need to forcibly change someone's password to a known value within the database, this one-liner can generate the password. Change the value of 'p' to the password you want. Show Sample Output


    1
    python -c 'p="SeCuR3PwD";import hashlib as h;s=h.md5(p).hexdigest()[:2];pw=h.md5(s+p).hexdigest();print pw+":"+s;'
    Xiol · 2011-10-16 18:49:08 1
  • This also works with Safari if you just change the application name. Replace window 1 with windows to list the URLs of tabs in all windows instead of only the frontmost window. This also includes titles: osascript -e{'set o to""','tell app"google chrome"','repeat with t in tabs of window 1','set o to o&url of t&"\n"&" "&title of t&"\n"',end,end}|sed \$d .


    1
    osascript -e{'set text item delimiters to linefeed','tell app"google chrome"to url of tabs of window 1 as text'}
    lri · 2019-01-22 06:05:55 0
  • Creates a consistent datapumpt export on an Oracle database with the current sequence number, while the system is running and changes happens on the database.


    0
    expdp user/password FLASHBACK_SCN=$(echo -e "select current_scn from v\$database;" | sqlplus / as sysdba 2>/dev/null| grep [0-9][0-9][0-9][0-9][0-9][0-9]*)
    peshay · 2009-10-01 08:55:20 0
  • # Usage: ftagmarks TAG BOOKMARKS.JSON ftagmarks Bash ~/.mozilla/firefox/*.default/bookmarkbackups/bookmarks-*.json Tag can be partial matching, e.g. input 'Bas' or 'ash' will match 'Bash' tag. # Exact tag matching: ftagmark(){ jq -r --arg t "$1" '.children[] as $i|if $i.root == "tagsFolder" then ([$i.children[] as $j|{title: ($j.title), urls: [$j.children[].uri]}]) else empty end|.[] as $k|if $k.title == $t then $k.urls else empty end|.[]?' "$2"; } Usage: ftagmark TAG BOOKMARKS.JSON # List all tags: ftagmarkl(){ jq -r '.children[] as $i | if $i.root == "tagsFolder" then $i.children[].title else empty end' "$1"; } Usage: ftagmarkl BOOKMARKS.JSON # Requires: `jq` - must have CLI JSON processor http://stedolan.github.io/jq Show Sample Output


    0
    ftagmarks(){ jq -r --arg t "$1" '.children[] as $i|if $i.root == "tagsFolder" then ([$i.children[] as $j|{title: ($j.title), urls: [$j.children[].uri]}]) else empty end|.[] as $k|if ($k.title|contains($t)) then $k.urls else empty end|.[]?' "$2"; }
    qwertyroot · 2016-12-24 15:12:04 0

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View Processeses like a fu, fu
I don't truly enjoy many commands more than this one, which I alias to be ps1.. Cool to be able to see the heirarchy and makes it clearer what need to be killed, and whats really going on.

Combines an arbitrary number of transparent png files into one file
This one liner; combines all sequentially numbered files; in this example IMG_0001.png to IMG_1121.png by generating the shell script, making the shell script executable and then running the shell script to combine the 1121 png into a single png file named _final.png tested on Mac OS X 10.6.3 with ImageMagick 6.5.8-0 2009-11-22 Q16 http://www.imagemagick.org

Unlock your KDE4.3 session remotely
The unlock command for KDE 4.3 has changed from krunner_lock, this process doesn't exist anymore. So here's the update :-) If qdbus complains about not being able to find X, put a "DISPLAY=:0 " (:0 being your X server display) in front of the command.

Show CPU usage for EACH cores

Send email with one or more binary attachments
This command uses mutt to send the mail. You must pipe in a body, otherwise mutt will prompt you for some stuff. If you don't have mutt, it should be dead easy to install.

Find usb device in realtime
Using this command you can track a moment when usb device was attached.

Get AWS temporary credentials ready to export based on a MFA virtual appliance
You might want to secure your AWS operations requiring to use a MFA token. But then to use API or tools, you need to pass credentials generated with a MFA token. This commands asks you for the MFA code and retrieves these credentials using AWS Cli. To print the exports, you can use: `awk '{ print "export AWS_ACCESS_KEY_ID=\"" $1 "\"\n" "export AWS_SECRET_ACCESS_KEY=\"" $2 "\"\n" "export AWS_SESSION_TOKEN=\"" $3 "\"" }'` You must adapt the command line to include: * $MFA_IDis ARN of the virtual MFA or serial number of the physical one * TTL for the credentials

Install Linux Kernel Headers

Converts uppercase chars in a string to lowercase
Another alternative is to define a function: lower() { echo ${@,,} } lower StrinG

Get video information with ffmpeg
ffprobe is specially intended to get video information


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