12.1 ตัวอย่างสคริปต์ดูรายชื่อไฟล์ในไดเรคทอรี่ย่อย

#!/bin/bash 
function listdir {
    local PAT="$1"
    local ROOT="$2"
    for i in *; do
        if [ -d "$i" ]; then
            local CUR="$ROOT/$i"
            pushd "$i" &>/dev/null
            listdir "$PAT" "$CUR"
            popd &>/dev/null
        fi
    done
    if [ ! -z "$( ls -d $PAT 2>/dev/null )" ]; then
        echo "Directory: $ROOT"
        ls -d $PAT 2>/dev/null
        echo 
    fi
}

if [ -z "$1" ]; then
echo List file in PATTERN recursive into directories.
echo Usage: $0 "PATTERN"
exit
fi
PATTERN="$1"
echo "List $PATTERN"
listdir "$PATTERN" "."

ให้ผลคล้ายคำสั่ง

$ find * -name PATTERN

12.2 ตัวอย่างสคริปต์บีบอัดสำรองข้อมูล

#!/bin/bash          
SRCD="/home/"
TGTD="/var/backups/"
OF=home-$(date +%Y%m%d).tgz
tar -cZf $TGTD$OF $SRCD

12.3 เปลี่ยนชื่อไฟล์ทีละหลายไฟล์

#!/bin/sh
# renna: rename multiple files according to several rules
# written by felix hudson Jan - 2000

#first check for the various 'modes' that this program has
#if the first ($1) condition matches then we execute that portion of the
#program and then exit

# check for the prefix condition
if [ $1 = p ]; then

#we now get rid of the mode ($1) variable and prefix ($2)
prefix=$2 ; shift ; shift

# a quick check to see if any files were given
# if none then its better not to do anything than rename some non-existent
# files!!

if [$1 = ]; then
echo "no files given"
exit 0
fi

# this for loop iterates through all of the files that we gave the program
# it does one rename per file given
for file in $*
do
mv ${file} $prefix$file
done

#we now exit the program
exit 0
fi

# check for a suffix rename
# the rest of this part is virtually identical to the previous section
# please see those notes
if [ $1 = s ]; then
suffix=$2 ; shift ; shift

if [$1 = ]; then
echo "no files given"
exit 0
fi

for file in $*
do
mv ${file} $file$suffix
done

exit 0
fi

# check for the replacement rename
if [ $1 = r ]; then

shift

# i included this bit as to not damage any files if the user does not specify
# anything to be done
# just a safety measure

if [ $# -lt 3 ] ; then
echo "usage: renna r [expression] [replacement] files... "
exit 0
fi

# remove other information
OLD=$1 ; NEW=$2 ; shift ; shift

# this for loop iterates through all of the files that we give the program
# it does one rename per file given using the program 'sed'
# this is a sinple command line program that parses standard input and
# replaces a set expression with a give string
# here we pass it the file name ( as standard input) and replace the nessesary
# text

for file in $*
do
new=`echo ${file} | sed s/${OLD}/${NEW}/g`
mv ${file} $new
done
exit 0
fi

# if we have reached here then nothing proper was passed to the program
# so we tell the user how to use it
echo "usage;"
echo " renna p [prefix] files.."
echo " renna s [suffix] files.."
echo " renna r [expression] [replacement] files.."
exit 0

# done!

12.4 เปลี่ยนชื่อไฟล์แบบง่าย

#!/bin/bash
# renames.sh
# basic file renamer

criteria=$1
re_match=$2
replace=$3

for i in $( ls *$criteria* );
do
src=$i
tgt=$(echo $i | sed -e "s/$re_match/$replace/")
mv $src $tgt
done