====== String Operations in Bash/Shell ======
Quelle((http://www.softpanorama.org/Scripting/Shellorama/Reference/string_operations_in_shell.shtml))
===== Length Operator =====
There are t... ar equivalent of strchr() in C.
==== Substr ====
Shell uses zero-based indexing. When substring expansio... meter null or not set. Note: In a non-interactive shell, this will abort the current script. In an intera