t:?" undefined!" } prints "count: undefined!" and exits if count is undefined.
${varname:+word}
If ... the string to the standard error file handle and exit the script with a return code of one.
Oddly enou... SUFFIX" # Log what is happening to stdout.
done
exit 0
Substring Replacement
${string/substring/re... thus makes it unnecessary to supply a filename.
exit 0
9.2.2. Further Discussion
For more on stri
icular instance, both "-ne" and "!=" work.
echo
exit 0</code>
=== Example 7-6. Testing whether a stri... # Not quoting "$string1" now gives wrong result!
exit 0
</code>
=== Example 7-7. zmore ===
<code>
... $0` filename" >&2
# Error message to stderr.
exit $E_NOARGS
# Returns 65 as exit status of script (error code).
fi
filename=$1
if [ ! -f "$filename