On Sat, Mar 02, 2019 at 07:56:58PM -0500, deb wrote:
This has to be simple and I'm just missing it.
If I pull a filename from a temp file into a variable, I can ls it
fine.
If I cut off the extension, and tack on my own SAME EXT, ls no longer
works.
(The actual script is more elaborate, loading vlc , etc -- but this
summarizes & shows my issue)
# mp4file.txt holds just 'long file with spaces.mp4'
fname=$(<mp4file.txt)
# echo $fname shows the right filename.mp4 string
# works
ls -al "$fname"
# Cut off the extension.
fname=`echo $fname | rev | cut -d. -f2 | rev`
# echo $fname shows the filename sans '.mp4'
# THIS LS FAILS, WITH FILE NOT FOUND (but actually reports the exact
string that worked above, but not being found here).
ls -al "$fname".mp4
ls: cannot access 'long file with spaces.mp4': No such file or
directory
I cannot replicate the behavior you describe. Here is how it looks for
me:
root@chroot:~# touch "long file with spaces.mp4"
root@chroot:~# echo "long file with spaces.mp4" >mp4file.txt
root@chroot:~# cat mp4file.txt
long file with spaces.mp4
root@chroot:~# ls -l
total 4
-rw-r--r-- 1 root root 0 Mar 3 01:02 long file with spaces.mp4
-rw-r--r-- 1 root root 26 Mar 3 01:02 mp4file.txt
root@chroot:~# fname=$(<mp4file.txt)
root@chroot:~# ls -al "$fname"
-rw-r--r-- 1 root root 0 Mar 3 01:02 long file with spaces.mp4
root@chroot:~# fname=`echo $fname | rev | cut -d. -f2 | rev`
root@chroot:~# ls -al "$fname".mp4
-rw-r--r-- 1 root root 0 Mar 3 01:02 long file with spaces.mp4
What version of bash are you using?
------------------------------------------------------
It is not:
* a special character thing,
* a carriage return thing,
* a character case thing,
* not helped with './' or '~/' added in front of the filename.
* It's the same string in both spots.
Any thoughts folks?
I am not sure about the overall problem, but I can say I would replace
this:
fname=`echo $fname | rev | cut -d. -f2 | rev`
with this:
fname=$(basename "$fname" .mp4)
Regards,
-Roberto