22 Oct
2019
22 Oct
'19
11:25 a.m.
On 2019-Oct-21 12:37:20 +1000, Warren Toomey <wkt(a)tuhs.org> wrote:
As in, 'cd' has to be built into the shell.
If it's external, the forked
child gets to change directory and the parent shell doesn't. I'm just
putting this in for those who didn't spot the nuance immediately -- took
me a few tens of seconds.
I'm still amazed at the number of people who don't get this and write
shellscripts that save the working directory on entry and do an explicit cd
at the end (usually without considering that the shellscript could die at
other locations).
--
Peter Jeremy