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May 19, 2015 - A Look At The New Commandlinefu
I've put together a short writeup on what kind of newness you can expect from the next iteration of clfu. Check it out here.
March 2, 2015 - New Management
I'm Jon, I'll be maintaining and improving clfu. Thanks to David for building such a great resource!

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Terminal - All commands - 12,232 results
cat *.jpg | ffmpeg -f image2pipe -r 1 -vcodec mjpeg -i - -vcodec libx264 out.mp4
wget -O - http://list.iblocklist.com/\?list\=ydxerpxkpcfqjaybcssw\&fileformat\=p2p\&archiveformat\=gz | gunzip > ~/ipfilter.p2p
2015-10-11 13:04:08
User: lordtoran
Functions: gunzip wget

Downloads Bluetack's level 1 IP blocklist in .p2p format, suitable for various Bittorrent clients.

adb shell screencap -p | sed 's/\r$//' > FILENAME.PNG
alias m='screen -S $$ -m script'
2015-10-01 18:07:18
Functions: alias
Tags: screen script

A quick alias I use right before logging into a server so that I have a log of the transactions as well as the ability to re-connect from another computer. Useful for when your boss says "what commands did you run again on that server?" and you had already closed the terminal ;)

I wrapped it in a script now, with more features, but this is the heart of it.

Never leave home without it.

cd ~/.minetest/mods && git clone --recursive https://github.com/$1/$2.git
2015-09-30 19:24:59
User: lordtoran
Functions: cd

Where $1 = author and $2 = mod name

You need to be running a daily build of Minetest (for example from the 'minetestdevs/daily-builds' PPA), or some bleeding edge mods will not work or crash the game.

Update a mod by entering its subdirectory under ~/.minetest/mods and doing

git pull && git submodule update --recursive --remote --init
sudo aa-complain /etc/apparmor.d/usr.bin.chromium-browser
2015-09-30 18:56:28
User: lordtoran
Functions: sudo

If AppArmor is installed with all profiles enforced, Chromium may refuse to start, printing a "failed to launch zygote process" error on stderr.

This command switches the Chromium profile from enforce to complain mode, effectively un-sandboxing the browser, but depending on the system setup it may be a smaller deal than a nonfunctional application.

NSPR_LOG_MODULES=nsHostResolver:5 NSPR_LOG_FILE=/tmp/log.txt /Applications/Firefox.app/Contents/MacOS/firefox
NSPR_LOG_MODULES=nsHostResolver:5 NSPR_LOG_FILE=/tmp/log.txt firefox
dnstop -l 3 enp1s0f0
./mpv_identify.sh * | egrep '^video_aspect=1\.[67]'
2015-09-29 05:47:07
User: Tatsh
Functions: egrep

Checks if the aspect ratio is approximately 1.6 (16:10) or ~1.77777778 (16:9).

Requires mpv_identify from mpv project https://github.com/mpv-player/mpv/blob/master/TOOLS/mpv_identify.sh (this replaces mplayer -identify, or midentify)

pkill imwheel && imwheel &
sudo sh -c "aptitude update; aptitude -DrVWZ full-upgrade; aptitude autoclean; exit"
2015-09-28 23:48:05
User: lordtoran
Functions: sh sudo

This has been my "sysupgrade" alias since ca. 2006, first used on Debian Sid, then Sabayon, and it still does its duty on Mint nowadays without breaking stuff.

pkill plasma-desktop && plasma-desktop
2015-09-28 23:36:24
User: lordtoran

This can help with serious GUI lockups in KDE. It will only restart Plasma + widgets, not your session, so all your programs will stay running.

sudo sh -c "rm /usr/share/mime/packages/kde.xml && update-mime-database /usr/share/mime"
wallpaper -w 800 -x 16384 -a 1.7 -b 1.85 *
2015-09-28 23:18:39
User: lordtoran

List images between 800 and 16384 pixels wide that can be displayed sized and trimmed on a widescreen display.

Requires the "wallpaper" utility.

echo "BTC rate is" $(wget https://api.bitcoinaverage.com/ticker/global/EUR/ -q -O - | jq ".last") "?"
2015-09-28 23:03:59
User: lordtoran
Functions: echo wget
Tags: wget bitcoin jq btc

Returns the global weighted BTC rate in EUR. Requires the "jq" JSON parser.

ps h -o %a 21679
2015-09-27 11:00:07
User: BeniBela
Functions: ps
Tags: Linux ps

Show the command line for a PID with ps

tr '\0' ' ' </proc/21679/cmdline ; echo
xargs -0a /proc/27288/cmdline echo
2015-09-25 17:35:11
User: dennisw
Functions: xargs
Tags: Linux /proc

If you cat the file, all the parts of the command line are bunched up. If you use tr to convert the nulls to spaces, you're still left without a newline unless you add another step. This command does everything for you.

xidel --quiet 'http://www.ebay.com/sch/Beds-Bed-Frames-/175758/i.html?_from=R40&_sac=1&_sop=15&_nkw=bed' -e 'css(".lvresult")[not(matches(., "Pickup only|BUILDING PLANS \(ONLY\)|PARTS LIST"))]/css(".lvtitle")/(.||": "||a/@href)' -f 'css("a.gspr.next")'
2015-09-24 12:11:13
User: BeniBela

The ebay URL is the search query copied from the browser (here searching for bed stuff). The regex is for crap that should not be shown. Important is "Pickup only", which filters away all the things that cannot be shipped (a filter that cannot be done on Ebay's webpage).

It will output the title and url for all matching items, for all pages of the search result.

It also works for the German Ebay.

curl -q -s http://www.hasthelhcdestroyedtheearth.com/ | sed -En '/span/s/.*>(.*)<.*/\1/p'
2015-09-23 23:26:30
User: Tatsh
Functions: sed

Use -q as first argument (as described in `man curl`) to ignore curlrc to ensure the output is always the same regardless of user's configuration.

while true; do (echo -n $(date +"%F %T"):\ ; xwininfo -id $(xprop -root|grep "ACTIVE_WINDOW("|cut -d\ -f 5) | grep "Window id" | cut -d\" -f 2 ) >> logfile; sleep 60; done
2015-09-23 23:00:14
User: BeniBela
Functions: cut date echo grep sleep

This logs the titles of the active windows, thus you can monitor what you have done during which times. (it is not hard to also log the executable name, but then it is gets too long)

xidel --quiet http://www.hasthelhcdestroyedtheearth.com/ -e //span
2015-09-23 12:31:55
User: BeniBela

This says if the LHC has destroyed the world. Run it in a loop to monitor the state of Earth. Might not work reliable, if the world has actually been destroyed.

curl -s http://www.hasthelhcdestroyedtheearth.com/ | sed -En '/span/s/.*>(.*)<.*/\1/p'
2015-09-23 12:30:31
User: BeniBela
Functions: sed

This says if the LHC has destroyed the world. Run it in a loop to monitor the state of Earth. Might not work reliable, if the world has actually been destroyed.

find . -iname '*png' -exec pngcrush -ow -brute $line {} {}.crush \;
2015-09-22 11:10:16
User: miniker84
Functions: find
Tags: GNU find

Find all pngs in directory structure and pngcrush them, none destructive. You can just remove the "{}.crush" part if you want destructive.