#!/bin/bash
# renameLNX1 - Korn shell script from UVSI stored in: /home/uvadm/sf/util/
# renameLNX1 - rename an entire directory of filenames
#          - Deleting specified characters in filenames
#
echo "rename files in subdir - deleting specified characters"
dir="$1"; chars="$2";
if [[ (-d "$dir") && (-n "$chars") ]]; then :
   else echo "usage: renameLNX1 directory 'characters' "
        echo "       =================================="
        echo " - arg1=directory, arg2=CharactersToDelete"
        echo " - must enclose characters in single quotes"
        echo " - may specify in hexadecimal"
        echo " example: renameLNX1 dirxx '\x20\x21\x27\x28\x29\x2C' "
        echo "          ============================================"
        echo " - delete Space, Exclamation, SingleQuote, LeftParen, RightParen, Comma"
        exit 1; fi
#
reply="n"
until [ "$reply" = "y" ]
do echo "enter to rename files ? y/n"
   read reply
done
x=0; y=0
for dfn in $dir/*
do fn1=${dfn##*/}
   fn2=$(echo $fn1 | tr -d $"$chars")
   #=========== see NOTE at end script =============
   # echo "Debug: fn1=$fn1 fn2=$fn2"
   let x=x+1
   if [[ $fn1 == $fn2 ]]; then continue; fi
   mv -i "$dir/$fn1" "$dir/$fn2"
   let y=y+1
   echo "file# $x $dir/$fn1 - renamed to: $dir/$fn2"
done
echo "total $x files, $y renamed (deleting $chars)"
exit 0
#------------- NOTE test/results ------------------
#
# renameLNX1 dirxx '\x20\x21\x27\x28\x29\x2C' 
#                     --- input ---
# file#1=comma=,leftparen=(,rightparen=),exclamation=!
# file#2=blanks comma=, leftparen=(, rightparen=), exclamation=!
# file#3-exclam=!,dollar=$,amp=&,quotes='",parens=(),star=*,comma=,
#                     --- output ---
# file#3-eclam=!,dollar=$,amp=&,quotes='",parens=(),star=*,comma=,
# file#=blanks comma=, leftparen=(, rightparen=), eclamation=!     <-- renameLNX1 NOT working
# file#=comma=,leftparen=(,rightparen=),eclamation=!                 - $arg2 passed to tr ???
# 
#Note - characters 1,2,x are removed - why is HEX not recognized 
#     - BUT it works if I hard code  the 'tr' line as follows:
#  fn2=$(echo $fn1 | tr -d $'\x21\x24\x26\x27\x28\x29\x2A\x2C')
#  #===========================================================
#Note - see "renameLNX" alt script with HARD-CODED hex chars on 'tr', works OK