In Bash, word splitting is a step in command line processing. From Bash Manual
The shell treats each character of $IFS as a delimiter, and splits the results of the other expansions into words using these characters as field terminators. If IFS is unset, or its value is exactly
<space><tab><newline>, the default, then sequences of
<space>, <tab>, and <newline>at the beginning and end of the results of the previous expansions are ignored, and any sequence of IFS characters not at the beginning or end serves to delimit words. If IFS has a value other than the default, then sequences of the whitespace characters space and tab are ignored at the beginning and end of the word, as long as the whitespace character is in the value of IFS (an IFS whitespace character). Any character in IFS that is not IFS whitespace, along with any adjacent IFS whitespace characters, delimits a field. A sequence of IFS whitespace characters is also treated as a delimiter. If the value of IFS is null, no word splitting occurs.
I want to rewrite the following example, so that the delimiter
space between the arguments
c is replaced with
$ echo a b c
a b c
But when I hit the key
Tab, there is no response.
When I hit
return, there is no space between
c in the output:
$ echo a\
Why can't I do what the quote says?
Btw, nothing comes out of
$ echo $IFS