On Fri, 10 Jul 2020 at 11:11, David Mason <dmason@ryerson.ca> wrote:
(base) : ~/foo ; [ -w .. ] && echo true true (base) : ~/foo ; /bin/pwd pwd: .: No such file or directory (base) : ~/foo ; pwd /Users/dmason/foo (base) : ~/foo ; [ -w $PWD ] && echo true (base) : ~/foo ;
So, /bin/pwd fails and [ -w $PWD ] also fails, as John hypothesized
../Dave On Jul 10, 2020, 11:01 AM -0400, John Sellens via talk <talk@gtalug.org>, wrote:
On Fri, 2020/07/10 09:38:48AM -0400, Giles Orr via talk <talk@gtalug.org> wrote: | This gives immediate visual feedback on the write-status of the | current directory. But test's '-w' and '-d' both claim that you're | still in a valid directory under the above circumstances. Does anyone | know of a simple way to find out if the directory you're currently in | actually exists?
The directory "." will still exist while you have it open (your current directory), but will be unreachable, as you observed with stat(1) and the number of links.
Would checking for "test -d $PWD" work? I think $PWD is the full path and so if it's no longer reachable, the test should fail?
Hope that helps
I love this list! I thought that '[ -w . ]' and '[ -w $PWD ]' were practically equivalent. "Practically" means, in this case, "almost." But not quite - and the difference is the solution to the problem. Thanks everyone, particularly John and Dave. -- Giles https://www.gilesorr.com/ gilesorr@gmail.com