Advanced Bash−Scripting Guide

echo "Testing \"strlen\" function:"
str=123456789
echo "\"str\" = $str"
echo −n "Length of \"str\" = "
strlen str
echo
Advanced Bash−Scripting Guide
# Exercise:
# −−−−−−−−
# Add code to test all the other string functions above.
exit 0
Michael Zick's complex array example uses the md5sum check sum command to encode directory
information.
Example A−20. Directory information
#! /bin/bash
# directory−info.sh
# Parses and lists directory information.
# NOTE: Change lines 273 and 353 per "README" file.
# Michael Zick is the author of this script.
# Used here with his permission.
# Controls
# If overridden by command arguments, they must be in the order:
# Arg1: "Descriptor Directory"
# Arg2: "Exclude Paths"
# Arg3: "Exclude Directories"
#
# Environment Settings override Defaults.
# Command arguments override Environment Settings.
# Default location for content addressed file descriptors.
MD5UCFS=${1:−${MD5UCFS:−'/tmpfs/ucfs'}}
# Directory paths never to list or enter
declare −a \
EXCLUDE_PATHS=${2:−${EXCLUDE_PATHS:−'(/proc /dev /devfs /tmpfs)'}}
# Directories never to list or enter
declare −a \
EXCLUDE_DIRS=${3:−${EXCLUDE_DIRS:−'(ucfs lost+found tmp wtmp)'}}
# Files never to list or enter
declare −a \
EXCLUDE_FILES=${3:−${EXCLUDE_FILES:−'(core "Name with Spaces")'}}
# Here document used as a comment block.
: