Linux

48328 readers

626 users here now

From Wikipedia, the free encyclopedia

Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

Rules

Posts must be relevant to operating systems running the Linux kernel. GNU/Linux or otherwise.
No misinformation
No NSFW content
No hate speech, bigotry, etc

Related Communities

Community icon by Alpár-Etele Méder, licensed under CC BY 3.0

founded 5 years ago

MODERATORS

AgreeableLandscape@lemmy.ml

nooter692@lemmy.ml

MarcellusDrum@lemmy.ml

cypherpunks@lemmy.ml

cyclohexane@lemmy.ml

d3Xt3r@lemmy.nz

Unix oneliners (mostly unorganized collection of bash oneliners) (ocv.me)

submitted 3 months ago by learnbyexample@programming.dev to c/linux@lemmy.ml

7 comments fedilink hide all child comments

you are viewing a single comment's thread
view the rest of the comments

[–] thingsiplay@beehaw.org 26 points 3 months ago (1 children)

I love such collections. But calling this one a one-liner is a bit of stretch:

stty -icanon || stty -f /dev/stdin -icanon && perl -e 'use strict; use Time::HiRes qw(usleep gettimeofday); use IO::Select; my $sel=IO::Select->new(); $sel->add(*STDIN); my ($ts,$on,$t0,$td)=(0)x4; print "\n"; while (1){ my $k=0; if($sel->can_read(.02)) {sysread(STDIN,$k,1)} my $t=int(gettimeofday*100)/100; if($k eq "\n") {$on=0;$ts=0} $td=($ts+$t-$t0); if($on){printf "\033[A\r%.2f\033[J\n",$td} if($k){$on=1-$on; if($on){$t0=$t}else{$ts=($ts+$t-$t0)}}}'

[–] Dirk@lemmy.ml 19 points 3 months ago (1 children)

This is just absurd and totally defines NOT as a one-liner in my book.

[–] thingsiplay@beehaw.org 20 points 3 months ago

Yeah, just because there is no newline character, does not make it a one liner. It does not even fit into one line and needs to be soft-broken into next line multiple times. And it includes a whole perl script. :D If anyone want to execute these complex lines, I would recommend to save as a script and let it autoformat to something readable.