====== String Operations in Bash/Shell ======
Quelle((http://www.softpanorama.org/Scripting/Shellorama/Reference/string_operations_in_shell.shtml))
===== Length Operator =====
There are two way
====== BashShell Tests ======
Quelle((http://tldp.org/LDP/abs/html/comparison-ops.html))
===== Other Comparison... metic and string comparisons ===
<code>
#!/bin/bash
a=4
b=5
# Here "a" and "b" can be treated eith... the arithmetic and string comparisons,
#+ since Bash variables are not strongly typed.
# Bash permit