is usually left on the command like literally. Under bash this is a user-settable option. In fact, under bash you can disable shell "globbing" if you like... in there
In conclusion I'll just provide a sampler of some other bash parameter expansions:
${parameter:-word}
Provide a defau... rief
The brief option selector: a single character. It is safer to choose a single letter (lower or upper case) in the ASCII standard.
long
The long ... s required present Function
Validates the number of arguments. required is the required number of arguments, present is the given number of arguments on the command line. If the number o
e escaped within a [ ] construct.
----
>
is greater than, in ASCII alphabetical order
<code>
if [[ "$a" > "$b" ]]
if [ "$a" \>... t brackets (see Example 7-6) normally works, however, this is an unsafe practice. Always quote a teste...
a=4
b=5
# Here "a" and "b" can be treated either as integers or strings.
# There is some blurring... les are not strongly typed.
# Bash permits integer operations and comparisons on variables
#+ whose
