The Open Group Base Specifications Issue 8

The POSIX.1-2024 specification now is available to the general public.

IIUC, here's the timeline:

- Issue 8: 2024

- Issue 7: 2017

- Issue 6: 2004

- Issue 5: 1997

- Issue 4: 1992

- Issue 3: 1988

>Note, however, that "$(( x=5 ))" need not be equivalent to "$(( $x=5 ))" . If the value of the environment variable x is the string "y=" , the expansion of "$(( x=5 ))" would set x to 5 and output 5, but "$(( $x=5 ))" would output 0 if the value of the environment variable y is not 5 and would output 1 if the environment variable y is 5. Similarly, if the value of the environment variable is 4, the expansion of "$(( x=5 ))" would still set x to 5 and output 5, but "$(( $x=5 ))" (which would be equivalent to "$(( 4=5 ))" ) would yield a syntax error.

Ah, never change, Unix shells :) I still love this bonkers language.

You're listing the latest revisions which is wrong. Issue 6 is originally from 2001 and Issue 7 from 2008.

I recommend looking up the Wikipedia article [0] on The Open Group, if you haven't heard of them yet. Among other things, they maintain standards such as LDAP and POSIX and also currently own the trademark for UNIX.

[0] https://en.wikipedia.org/wiki/The_Open_Group