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Like programming in bash (lemmy.ml)

submitted 1 day ago by cm0002@lemmy.world to c/programmer_humor@programming.dev

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[-] SpaceNoodle@lemmy.world 49 points 1 day ago

Clearly you don't write enough bash scripts.

[-] CrazyLikeGollum@lemmy.world 15 points 1 day ago

Or scripts for basically any other variant of the Bourne shell. They are, for the most part, very cross compatible.

[-] Tinidril@midwest.social 10 points 1 day ago

That's the only reason I've ever done much of anything in shell script. As a network administrator I've worked many network appliances running on some flavor of Unix and the one language I can count on to be always available is bash. It has been well worth knowing for just that reason.

[-] BeigeAgenda@lemmy.ca 2 points 1 day ago

I wrote a script to do backups on a ESXi it uses Busybox's ASH, one thing I learned after spending hours debugging my scripts was that ASH does not support arrays so you have to do everything with temporary files.

[-] YouAreLiterallyAnNPC@lemmy.world 4 points 1 day ago

There actually is an array in any POSIX shell. You get one array per file/function. It just feels bad to use it. You can abuse 'set -- 1 2 3 4' to act as a proper array. You can then use 'for' without 'in' to iterate over it.

for i; do echo $i; done.

Use shift to pop items off.

If I really have to use something more complex, I'll reach for mkfifo instead so I can guarantee the data can only be consumed once without manipulating entries.