I had a problem like this at work just before Xmas break. A script wa returning "command not found" for 'chmod' because of an invisible Unicode character. The g

I had a problem like this at work just before Xmas break. A script wa returning "command not found" for 'chmod' because of an invisible Unicode character. The guy who asked my help refused to believe it, untill I showed him a hex dump of the script, he got convinced when he saw 2 byted between the command and parameters.