Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.os.linux.misc > #56480 > unrolled thread

Re: How many ways can you run a script?

Back to article view | Back to comp.os.linux.misc

This discussion starts older than the indexed window; earlier articles aren't shown. The article labeled Started by below is the oldest one visible, not the original post.

Contents

  Re: How many ways can you run a script? Fritz Wuehler <fritz@spamexpire-202405.rodent.frell.theremailer.net> - 2024-05-30 03:14 +0200
    Re: How many ways can you run a script? Woozy Song <suzyw0ng@outlook.com> - 2024-06-02 09:34 +0800
      Re: How many ways can you run a script? Nuno Silva <nunojsilva@invalid.invalid> - 2024-06-02 11:48 +0100
    Re: How many ways can you run a script? Fritz Wuehler <fritz@spamexpire-202406.rodent.frell.theremailer.net> - 2024-06-02 13:57 +0200

#56480 — Re: How many ways can you run a script?

Woozy Song <suzyw...@outlook.com> [WS]:
WS> I know these are not all equivalent and may have idiosyncracies.

Idiosyncracies is shell's middle name.
Use them or lose them, as they say...

$ ${0/-} myscript

(assuming that this is a login tty and your shell is bash)

[toc] | [next] | [standalone]

#56499

Fritz Wuehler wrote:
> Woozy Song <suzyw...@outlook.com> [WS]:
> WS> I know these are not all equivalent and may have idiosyncracies.
> 
> Idiosyncracies is shell's middle name.
> Use them or lose them, as they say...
> 
> $ ${0/-} myscript
> 
> (assuming that this is a login tty and your shell is bash)
> 

That is an obscure one! What does the /- mean?

[toc] | [prev] | [next] | [standalone]

#56500

On 2024-06-02, Woozy Song wrote:

> Fritz Wuehler wrote:
>> Woozy Song <suzyw...@outlook.com> [WS]:
>> WS> I know these are not all equivalent and may have idiosyncracies.
>>
>> Idiosyncracies is shell's middle name.
>> Use them or lose them, as they say...
>>
>> $ ${0/-} myscript
>>
>> (assuming that this is a login tty and your shell is bash)
>>
>
> That is an obscure one! What does the /- mean?

I'm guessing it's "delete all matches of '-' in $0"?

See «'${PARAMETER/PATTERN/STRING}'» in

    info '(bash)Shell Parameter Expansion'

-- 
Nuno Silva

[toc] | [prev] | [next] | [standalone]

#56501

Woozy Song <suzyw...@outlook.com> [WS]:
WS> >$ ${0/-} myscript
WS> What does the /- mean?

Get rid of a possible (initial) "-" in $0:

$ echo $0; echo ${0/-}
-/bin/bash
/bin/bash

[toc] | [prev] | [standalone]

Back to top | Article view | comp.os.linux.misc

csiph-web