Re: some unknown bug, says : command not found

[Greg Wooledge]

On Mon, Nov 01, 2021 at 05:29:08PM +0100, Alex fxmbsw7 Ratchev wrote:
> how, or what, is a non breaking space

https://en.wikipedia.org/wiki/Non-breaking_space

In HTML it's represented by  

In Unicode it's code point U+00A0

In UTF-8 it's encoded as 0xc2 0xa0

On my system, with Debian's X Compose defaults, I can type one by
pressing Compose-Space-Space.  Here's the relevant snippet from
/usr/share/X11/locale/en_US.UTF-8/Compose:

# Spaces
<Multi_key> <space> <space>             : " "   nobreakspace # NO-BREAK SPACE

It's one of the first things I look for whenever something is visually
screwy (along with Carriage Returns).  They commonly creep in when someone
pastes content from a Microsoft product, or from a web site (or both).

> i identified the file is in the main script sourced
> 
> got a suggestion for a hexdump cmd ? i know of none with args

On Debian, you can use hd (which is the same as hexdump -C).  Or od -tx1.