====== String Operations in Bash/Shell ======
Quelle((http://www.softpanorama.org/Scripting/Shellorama/Reference/string_operations_in_shell.shtml))
===== Length Operator =====
There are two way to get length of the string.
T... ${#filename} would have the value 6.
The other operator (${#array[*]}) has to do with array variables
tml/comparison-ops.html))
===== Other Comparison Operators =====
==== integer comparison ====
----
-e... s a synonym for =.
Note
The == comparison operator behaves differently within a double-brackets ... equal to
<code>if [ "$a" != "$b" ]</code>
This operator uses pattern matching within a [[ ... ]] cons... mple 27-11 for an application of this comparison operator.
----
-z
string is null, that is, has zero l
