which returns the length of the value of the variable as a character string. For example, if filename... operator (${#array[*]}) has to do with array variables.
==== String Length ====
<code>
${#string}
... g
expr "$string" : '.*'
</code>
stringZ=abcABC123ABCabc
<code>
echo ${#stringZ} # 15
echo `expr length $stringZ` # 15
echo
h Shell Tests ======
Quelle((http://tldp.org/LDP/abs/html/comparison-ops.html))
===== Other Compariso... ]] construct.
----
<
is less than, in ASCII alphabetical order
<code>
if [[ "$a" < "$b" ]]
i... construct.
----
>
is greater than, in ASCII alphabetical order
<code>
if [[ "$a" > "$b" ]]
... de>
String='' # Zero-length ("null") string variable.
if [ -z "$String" ]
then
echo "
