c/linuxmemes · by perishthethought@lemm.ee · 1y

My forté

Uh-huh.

429 points · 17 comments · view on lemmy.world

17 Comments

30p87@feddit.org · 32 pts · 1y (1 reply)

This version of 'false' is implemented as a C program, and is thus more secure and faster than a shell script implementation

I bet there is a way to exploit

int main(int, char**) {
    return 1;
}

xigoi@lemmy.sdf.org · 30 pts · 1y

If you run it on a machine with 0-bit integers, it will cause an overflow

PastaRhythm@lemmy.world · 22 pts · 1y

Just tried "false && echo wee" in my terminal, then "true && echo wee". Learn something new every day.

perishthethought@lemm.ee · 19 pts · 1y

For anyone curious, that comes from

https://ss64.com/bash/false.html

namingthingsiseasy@programming.dev · 18 pts · 1y (1 reply)

If you ever feel useless, don't forget that both true and false have manpages in Linux.

They even have --help and --version flags in case you need them.

renzev@lemmy.world · 14 pts · 1y

Huh, TIL

~ $ /bin/true --help
Usage: /bin/true [ignored command line arguments]
  or:  /bin/true OPTION
Exit with a status code indicating success.

      --help        display this help and exit
      --version     output version information and exit

NOTE: your shell may have its own version of true, which usually supersedes
the version described here.  Please refer to your shell's documentation
for details about the options it supports.

GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
Full documentation <https://www.gnu.org/software/coreutils/true>
or available locally via: info '(coreutils) true invocation'

I honestly don't know what I prefer more, the overengineered GNU true, or the true that shipped with some older system that was literally just an empty file with the executable bit set.

Matombo@feddit.org · 17 pts · 1y (2 replies)

not to be consufes with:

true: Do nothing, successfully

dneaves@lemmy.world · 11 pts · 1y (1 reply)

And also not to be confused with:

: : Do nothing

stetech@lemmy.world · 1 pts · 1y

I only learned that this was a thing like literally two days ago!

SnotFlickerman@lemmy.blahaj.zone · 14 pts · 1y (3 replies)

My Forte:

perishthethought@lemm.ee · 4 pts · 1y (1 reply)

ohmy

https://www.youtube.com/watch?v=cZ71dN1zs5w

Hint: It's NSFW, people. And kinda disturbing.

SnotFlickerman@lemmy.blahaj.zone · 3 pts · 1y

rain_worl@lemmy.world · 1 pts · 1y

Matombo@feddit.org · 13 pts · 1y

ADHD be llike:

Evil_Shrubbery@lemm.ee · 5 pts · 1y

A low level floppy dick, that's me!

j4k3@lemmy.world · 5 pts · 1y (1 reply)

apropos man man

SnotFlickerman@lemmy.blahaj.zone · 3 pts · 1y