upload command fails silently when permissions

[moonbeam65]

When uploading to a file system that I do not have write permissions for the upload command fails silently.
When uploading to a non-existent directory the upload command fails noisily, as appropriate.
The mkdir command fails as expected, with appropriate messages.

I realize these are two very different execution paths.

cmda myfile.txt /var/task

fails silently

cmda myfile.txt /bar/no_such_dir

fails noisily.

cmda mkdir /var/fail_dir

fails noisily.

ps thanks for this utility!

[mhart]

Nice pickup! Will look into making that a bit nicer