f I've written about), please take a look at my home page. If you've got questions or comments, please drop me a line.
Pattern Matching
There are two kinds of p... . If it doesn't exist or is null, print the error message. If no error message is given, print parameter null or not set. Note: In a non-interactive sh... f I've written about), please take a look at my home page. If you've got questions or comments, please drop me a line.
KSH Pattern-matching Operators
Korn shel... and abort the current command or script. Omitting message produces the default message parameter null or not set.
Purpose:
Catching errors
ated either as integers or strings.
# There is some blurring between the arithmetic and string comparisons,
#+ since Bash variable... y: zmore "" arg2 arg3
then
echo "Usage: `basename $0` filename" >&2
# Error message to stderr.
exit $E_NOARG... error code).
fi
filename=$1
if [ ! -f "$filename" ] # Quoting $filename allows for possible spaces.
then
echo "File $filename not found!" >&2 # Error message to stderr.
exit $E_NOTFOUND
fi
if [ ${f
