bash file name handling scripts

read file names

#!/bin/bash
SAVEIFS=$IFS
IFS=$(echo -en "\n\b")
for f in *
do
  echo "$f"
done
IFS=$SAVEIFS

#!/bin/bash
SAVEIFS=$IFS
IFS=$(echo -en "\n\b")
# set me
FILES=/data/*
for f in $FILES
do
  echo "$f"
done
# restore $IFS
IFS=$SAVEIFS

#!/bin/bash

SAVEIFS=$IFS
IFS=$(echo -en "\n\b")

for f in `cat /root/movedata.txt`
do
  echo "$f"
  ls -l |grep $f
done

IFS=$SAVEIFS

read password file

while IFS=: read userName passWord userID groupID geCos homeDir userShell
do
      echo "$userName -> $homeDir"
done < /etc/passwd

find command

find . -print0 | while read -d $'\0' file
do
  echo -v "$file"
done

filearray

#!/bin/bash
DIR="$1"
 
# failsafe - fall back to current directory
[ "$DIR" == "" ] && DIR="."
 
# save and change IFS 
OLDIFS=$IFS
IFS=$'\n'
 
# read all file name into an array
fileArray=($(find $DIR -type f))
 
# restore it 
IFS=$OLDIFS
 
# get length of an array
tLen=${#fileArray[@]}
 
# use for loop read all filenames
for (( i=0; i<${tLen}; i++ ));
do
  echo "${fileArray[$i]}"
done

splitlines

oldifs="$IFS"
IFS="
"
for line in $(< line-with-spaces-between-fields.txt); do
   ...
done
IFS="$oldifs" 

scoop up list of file using "set" builtin

cd ..; set *.txt; cd ~-
 for f; do
 echo "../$f" "$f"
 done

remove unwanted characters in filenames:

SAVEIFS=$IFS
IFS=$(echo -en "\n\b")
FILES=$1/*
for f in $FILES
do
 #echo "$f"
 FILENAME="${f//[\?%\+]/_}";
 mv -b --strip-trailing-slashes "$f" "$FILENAME"
done
IFS=$SAVEIFS

replaces ?, % and + with _ 

sql example

array=($(mysql –host=192.168.1.2 –user=XXXX –password=XXXX -s -N -e ‘use
 xbmc_video; SELECT c22 FROM movie, files WHERE 
files.idFile=movie.idFile ORDER BY idMovie DESC LIMIT 10;’))

array=( "${array[@]// /}" )

read names into array, and process

#!/bin/bash
DIR=$HOME/HY_DUMP/
# failsafe - fall back to current directory
#[ "$DIR" == "" ] && DIR="."
# save and change IFS
OLDIFS=$IFS
IFS=$'\n\b'
cd $DIR
# read all file name into an array
fileArray=( * )
# restore it
IFS=$OLDIFS
# get length of an array
tLen=${#fileArray[@]}
echo $tLen
# use for loop read all filenames
for (( i=0; i<${tLen}; i++ ));
do
  echo "${fileArray[$i]}"
done

http://www.cyberciti.biz/tips/handling-filenames-with-spaces-in-bash.html