DIGITALFALL
  • Communities
  • Create Post
  • heart
    Support Lemmy
  • search
    Search
  • Login
  • Sign Up
chraebsli@programming.dev to Programmer Humor@programming.dev · 2 years ago

Touch a file in Linux

programming.dev

message-square
92
link
fedilink
1.17K

Touch a file in Linux

programming.dev

chraebsli@programming.dev to Programmer Humor@programming.dev · 2 years ago
message-square
92
link
fedilink
  • gaterush@lemmy.world
    link
    fedilink
    arrow-up
    9
    ·
    2 years ago

    The other command could just be printf '' >> file to not overwrite it. Or even simpler >>file and then interrupt

    • owsei@programming.dev
      link
      fedilink
      arrow-up
      10
      ·
      2 years ago

      or :>>file then you don’t need to interrupt

      • 4am@lemm.ee
        link
        fedilink
        arrow-up
        6
        ·
        2 years ago

        .“:>>” is “append null” right? Do you get a file with a single ASCII NUL or is it truly empty?

        • Trailblazing Braille Taser@lemmy.dbzer0.com
          link
          fedilink
          arrow-up
          14
          ·
          2 years ago

          Not really. I believe : is the “true” builtin. So it’s like running a program that exits with zero and writes nothing to stdout. The >> streams the empty stdout into the named file.

        • al177@lemmy.sdf.org
          link
          fedilink
          arrow-up
          4
          ·
          2 years ago

          $ :|wc -c 0 $ touch /tmp/f; :>>/tmp/f; wc -c /tmp/f 0 /tmp/f

      • gaterush@lemmy.world
        link
        fedilink
        arrow-up
        3
        ·
        2 years ago

        that’s awesome, did not know about that handy operator!

        • owsei@programming.dev
          link
          fedilink
          arrow-up
          3
          ·
          2 years ago

          Yeah!

          it’s basically a noop, I use it as a placeholder when I’m writing a script, since bash doesn’t accept code blocks with no commands

Programmer Humor@programming.dev

programmer_humor@programming.dev

Subscribe from Remote Instance

Create a post
You are not logged in. However you can subscribe from another Fediverse account, for example Lemmy or Mastodon. To do this, paste the following into the search field of your instance: !programmer_humor@programming.dev

Welcome to Programmer Humor!

This is a place where you can post jokes, memes, humor, etc. related to programming!

For sharing awful code theres also Programming Horror.

Rules

  • Keep content in english
  • No advertisements
  • Posts must be related to programming or programmer topics
Visibility: Public
globe

This community can be federated to other instances and be posted/commented in by their users.

  • 1.58K users / day
  • 3.55K users / week
  • 9.72K users / month
  • 19.3K users / 6 months
  • 1 local subscriber
  • 27K subscribers
  • 1.85K Posts
  • 68.9K Comments
  • Modlog
  • mods:
  • Feyter@programming.dev
  • adr1an@programming.dev
  • BurningTurtle@programming.dev
  • Pierre-Yves Lapersonne@programming.dev
  • BE: 0.19.13
  • Modlog
  • Legal
  • Instances
  • Docs
  • Code
  • join-lemmy.org