ls to list files withouth my key word!
 

lets say I have 1k *.dcm files and 2 *.<other formats>....I want a command that will output the *.<other_formats>.

For example:

$ls !(or something that does the not) *.dcm
that gives me:
*.x
*.y
*.z

Not working...

$ls -I '*.dcm'
ls: ilegal option -- I
usage: ls [-ABCD...] [file...]

Which shell do you use. Works for bash.

A find alternative:
the -maxdepth 1 option limits the results to the current working directory (if needed).

just in case an existing alias is mucking it up?

or even will show. :)

I prefer using 'find but "modern" incarnations of 'ls' seem to have a "--hide=" switch so '\ls --hide=*.dcm;' could work.

Is this an embedded or very old system? Even my 8 year old Fedora 4 machines have the -I flag in ls. But if this is something like Busybox then it may be running a stripped down version of ls with less functionality. In that case, we need to know what you're running before we can suggest a working alternative.

If you do have a really basic version of Linux, this should work