I was trying to use negation to exclude directories from globbing, but directories still appear in pattern match:
bash-4.3$ ls
file_1.txt testdir
bash-4.3$ shopt extglob
extglob on
bash-4.3$ echo !(*/)
file_1.txt testdir
bash-4.3$
What exactly am I doing wrong ?
Note:I know I can use for loop with [ or find command, but I'm trying to figure out extglob specifically.
You can't have a / in the @(...), !(...), *(...)...
The / can only appear between globs, even a[x/y]b is treated as @(a\[x)/@(y\]b). globs are first split on / and each part matched against the content of a directory. When there are x(...) ksh glob extensions, however, there's no splitting on the / that are inside the (...), but each glob part is still matched against file names. In !(*/*), */* is matched against each file name in the current directory. Obviously, no file name may ever contain a /, so it matches nothing, so !(*/*) matches every file.
Here, you'd want to use zsh and its glob qualifiers:
echo *(^/)
For the files of any type except directory. Or to be the opposite of bash's */ (which is any file of type directory after symlink resolution):
echo *(-^/)
(files that are neither directories nor symlinks to directories).
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