Conversation

Notices

1. Embed this notice
   Julia Evans (b0rk@social.jvns.ca)'s status on Tuesday, 01-Apr-2025 06:15:55 JST Julia Evans

   i can tell I've been writing this terminal zine for too long because I just had the thought "oh, it might be fun to read `man bash`”

   • Embed this notice
     Garrett Wollman (wollman@mastodon.social)'s status on Tuesday, 01-Apr-2025 06:15:50 JST Garrett Wollman

     in reply to

     • R.I.Pienaar

     @ripienaar @b0rk Quoth The Standard:

     If file does not contain a <slash>, the shell shall use the search path specified by PATH to find the directory containing file. Unlike normal command search, however, the file searched for by the dot utility need not be executable. If no readable file is found, a non-interactive shell shall abort; an interactive shell shall write a diagnostic message to standard error, but this condition shall not be considered a syntax error.
     (SUSv7 but unchanged I think.)

   • Embed this notice
     Garrett Wollman (wollman@mastodon.social)'s status on Tuesday, 01-Apr-2025 06:15:50 JST Garrett Wollman

     in reply to

     • R.I.Pienaar

     @ripienaar @b0rk I think bash has always had `source`, which is a csh-ism that was never in the Bourne or Korn shell, and it's always been equivalent to the `.` command going back to pre-1.x days.

     feld likes this.
   • Embed this notice
     R.I.Pienaar (ripienaar@devco.social)'s status on Tuesday, 01-Apr-2025 06:15:51 JST R.I.Pienaar

     in reply to

     @b0rk damn

   • Embed this notice
     Julia Evans (b0rk@social.jvns.ca)'s status on Tuesday, 01-Apr-2025 06:15:52 JST Julia Evans

     in reply to

     • R.I.Pienaar

     @ripienaar the man page claims source is just a synonym for `.`

   • Embed this notice
     R.I.Pienaar (ripienaar@devco.social)'s status on Tuesday, 01-Apr-2025 06:15:53 JST R.I.Pienaar

     in reply to

     @b0rk I seem to recall “. Foo.sh” doesn’t do that?

   • Embed this notice
     Julia Evans (b0rk@social.jvns.ca)'s status on Tuesday, 01-Apr-2025 06:15:54 JST Julia Evans

     in reply to

     I am learning some upsetting-to-me things from reading the bash man page, for example that in bash `source blah.sh` will by default search all directories in your PATH for a file called `blah.sh`

   • Embed this notice
     Julia Evans (b0rk@social.jvns.ca)'s status on Thursday, 03-Apr-2025 06:23:35 JST Julia Evans

     in reply to

     • Xavier Ashe :donor:

     @Xavier I thought `source blah.sh` was the same as `source ./blah.sh`!

     Haelwenn /элвэн/ :triskell: likes this.
   • Embed this notice
     Xavier Ashe :donor: (xavier@infosec.exchange)'s status on Thursday, 03-Apr-2025 06:23:36 JST Xavier Ashe :donor:

     in reply to

     @b0rk What should be the correct behavior?

   • Embed this notice
     Haelwenn /элвэн/ :triskell: (lanodan@queer.hacktivis.me)'s status on Thursday, 03-Apr-2025 06:29:40 JST Haelwenn /элвэн/ :triskell:

     in reply to

     • Xavier Ashe :donor:
     • Swiss Army Nerd
     • malte

     @malte @wesmorgan1 @b0rk @Xavier Yeah same there, in fact I'd more except some kind of BASH_PATH if it really wanted to resolve something, quite like there is an LD_LIBRARY_PATH.

     Although well checking POSIX, the similar dot command has the same behavior: https://pubs.opengroup.org/onlinepubs/9799919799/utilities/V3_chap02.html#tag_19_19

     So should be the behavior of most shells.

   • Embed this notice
     Swiss Army Nerd (wesmorgan1@mastodon.social)'s status on Thursday, 03-Apr-2025 06:29:42 JST Swiss Army Nerd

     in reply to

     • Xavier Ashe :donor:
     • malte

     @malte @b0rk @Xavier

     Since PATH is consulted for all other commands, so why shouldn't it be consulted for scripts?

   • Embed this notice
     malte (malte@anticapitalist.party)'s status on Thursday, 03-Apr-2025 06:29:42 JST malte

     in reply to

     • Xavier Ashe :donor:
     • Swiss Army Nerd

     @wesmorgan1 @b0rk @Xavier but "source" is for sourcing bash-script, which could even be 600 permissionwise, while $PATH contains _executables_ of all sort of flavours?

   • Embed this notice
     Swiss Army Nerd (wesmorgan1@mastodon.social)'s status on Thursday, 03-Apr-2025 06:29:44 JST Swiss Army Nerd

     in reply to

     • Xavier Ashe :donor:

     @b0rk @Xavier

     Huh...I, for one, expect PATH to be consulted by default.

   • Embed this notice
     malte (malte@anticapitalist.party)'s status on Thursday, 03-Apr-2025 06:29:44 JST malte

     in reply to

     • Xavier Ashe :donor:
     • Swiss Army Nerd

     @wesmorgan1 @b0rk @Xavier why, though?