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Command Line Magic

@climagic

Cool Unix/Linux Command Line tricks you can use in $TWITTER_CHAR_LIMIT characters or less. Here mostly to inspire all to try more. Read docs first, run later.\~

BASHLANDclimagic.org2009年11月からTwitterを利用しています

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Xtoff

@CrunkComputing

8月4日

返信先:

@climagic

さん,

@BillieGoatin

さん

I made a thing as well.

curl zoidberg.live

Command Line Magic

@climagic

8月4日

less +F filename.log # Using +F option or pressing F in less is similar to `tail -f filename.log` but can use less's features.

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Command Line Magic

@climagic

8月2日

patreon.com/climagic # The latest issue of the CLIMagic Supplement it out with more in depth explanations of the posts made over the past couple weeks. You can access it by supporting climagic on Patreon at the $2/month level.

CLImagic is creating Command line tips for the Linux / Unix / Open source communities | Patreon

Become a patron of CLImagic today: Read 19 posts by CLImagic and get access to exclusive content and experiences on the world’s largest membership platform for artists and creators.

254 = CLI on the phone in case you didn't notice.

a=(697 770 852 941);b=(1209 1336 1477 1633);c='123A456B789C*0#D';while read -N1 l;do r="${c#*$l}";i=$((${#c}-${#r}-1));[ "$l" = "*" ]&&i=12;play -n synth sin ${a[$((i/4))]} sin ${b[$((i%4))]} remix - trim 0 0.2 2>/dev/null;done # Play DTMF tones using your keyboard. Uses sox pkg.

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468

while true ; do cat globe.vt | pv -L9600 -q | GREP_COLORS="ms=01;32" egrep --color=always "[^ ]+" | GREP_COLORS="ms=01;44" egrep --color=always -e "\ +" | sed 's/^.\[01;44m//' ; done # Level up

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Command Line Magicさんがリツイート

返信先:

さん,

さん

I made a library for rendering in the terminal, based on so-called VT100 control codes. It uses a dirty check, diff between flushes, etc. to gain more perf in rendering. Here is, for instance, a video from YouTube played in the terminal. github.com/ghaiklor/termi

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Command Line Magic

@climagic

7月31日

curl -s http://artscene.textfiles\.com/vt100/globe.vt | pv -L9600 -q # Spinning ASCII art globe. Visit the parent directory in that URL for more animations.

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999

Some programs like to send their help output to STDERR instead of STDOUT. This makes it harder to pipe the output to other programs. If you had to choose, where would you prefer the help output from a program to go?

STDOUT

STDERR

I don't care

I don't understand

3,734票 · 残り16時間

Command Line Magic

@climagic

7月28日

ls -ld /lost+found # Unless you've had some filesystem trouble or migrated to a new root filesystem, this will usually indicate when you installed a system.

111

Command Line Magicさんがリツイート

Kate

@thingskatedid

7月24日

I made a super simple CLI plotting thingy, reads numbers on stdin, draws svg to stdout. Just for seeing the shape of data. It's written in awk.

A CLI tool plotting a couple of very simple charts

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2,059

cd(){ [[ -t 1 && $((RANDOM%20)) -eq 0 ]] && echo " meow (=^_^=) )~"; builtin cd "$@"; } # %5 chance of printing an ASCII art cat when you run the cd command. By Adi on mastodon

199

Command Line Magic

@climagic

7月24日

awk 'NR==1{print} END {print}' data.csv # An awk way to print the first and last line of a file easily using awk so that for example you can see the headers along with the most recent entry for data.

173

Command Line Magic

@climagic

7月23日

Why reinvent the tweet

引用ツイート

SwiftOnSecurity

@SwiftOnSecurity

· 2014年12月19日

NO MORE PACKAGE MANAGERS. STOP. NO. PLAY WITH THE TOYS YOU ALREADY HAVE.

111

Command Line Magic

@climagic

7月23日

pgrep rsync | xargs ionice -c3 -p # Adjust all rsync processes on the system so that they have lower (idle) IO priority.

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Command Line Magic

@climagic

7月22日

for i in *.tar.gz; do mkdir "${i%.tar.gz}";( cd "${i%.tar.gz}" && tar zxvf ../"$i" );done # Put the output of each tar file into its own directory.

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Command Line Magic

@climagic

7月21日

mkdir good; for f in *JPG ;do mv "${f%JPG}"* good/;done # Move JPGs and related files (e.g. raws + sidecar XMP) for workflow

I think wttr.in by

wins the award for the best use of *blink* ever. BTW, how to make a 2 frame animated gif using Imagemagick convert -loop 0 -delay 70 1.png 2.png thunderstorm.gif

GIF

169

790

Command Line Magic

@climagic

7月17日

geoiplookup $( dig +short MX demon.net ) # What country does your email flow through? Is it was you expected? Change demon.net in this command to the domain you use.