While hunting a bug in my script, I stumbled over an effect involving
the usage of
backquote and grep, which completely puzzles me. To reproduce the
effect, execute
first the following four commands, which create a small directory tree
in your
working directory and set the bash variable 'e':
mkdir -p dirx/sub/f
cd dirx
touch x
e=$('ls' *)
Wenn you now do echo $e, you should get the following output:
x sub: f
And here comes the mystery part. Execute the following two commands:
echo g|grep "$e"
echo g|grep "x sub: f"
Could some kind soul explain to me, why the first grep matches?
BTW, BASH_VERSION is "2.05b.0(1)-release"
Ronald
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