#!/bin/bash
# renameLNX - Korn shell script from UVSI stored in: /home/uvadm/sf/util/
# renameLNX - rename all files in directory to Linux filenaming conventions
#           - Deleting characters in filenames that must be escaped on Linux systems
#           - also removing LowBit & HiBit characters using complement option & octal codes
# renameLNX1 - original script did not work trying to use "$chars" on the 'tr' command
# renameLNX - this HARD-CODEs the HEX chars to be deleted on the 'tr' command & it works
#           - can anyone tell me how to make "$chars" work on the 'tr' command ???
#
echo "rename files in subdir - deleting characters that must be escaped on Linux"
dir="$1"; chars="$2";
if [[ -d "$dir" ]]; then :
   else echo "usage: renameLNX directory "
        echo "       ===================="
        echo " - arg1=directory, arg2=CharactersToDelete "
        echo " - arg2 removed for renameLNX, hard-coded on 'tr' comamnd below"
        echo "\x20\x21\x22\x24\x26\x27\x28\x29\x2A\x2C\x3A\x3B\x3C\x3E\x3F\x5B\x5C\x5D\x7B\x7C\x7D"
        echo "space \! \"  \$  \&  \'  \(  \)  \*   ,   :   ;   <   >  \?   [  \\   ]   {   |   }"
        exit 1; fi
#
echo "Remove characters that require escapes on Linux systems (usually none) "
x=0; y=0
for dfn in $dir/*
do fn1=${dfn##*/}
   fn2=$(echo $fn1 | tr -cd '\12\40-\176') #remove LowBit&HiBit chars (octal, hex bug optn 'c')
   fn3=$(echo $fn2 | tr -d \
   $'\x20\x21\x22\x24\x26\x27\x28\x29\x2A\x2C\x3A\x3B\x3C\x3E\x3F\x5B\x5C\x5D\x7B\x7C\x7D')
   #============================= HARD-CODED ==============================================
   # echo "Debug: fn1=$fn1 fn3=$fn3"
   let x=x+1
   if [[ $fn1 == $fn3 ]]; then continue; fi
   mv -i "$dir/$fn1" "$dir/$fn3"
   let y=y+1
   echo "file# $x $dir/$fn1 - renamed to: $dir/$fn3"
done
echo "total $x files, $y renamed "
exit 0
#*eject
#-------- test renameLNX deletes hardcoded (vs renameLNX1 deletes arg2 & $chars on tr) -------
# renameLNX dirxx  
#                        ----- input -----
# file#1=comma=,leftparen=(,rightparen=),exclamation=!
# file#2=blanks comma=, leftparen=(, rightparen=), exclamation=!
# file#3-exclam=!,dollar=$,amp=&,quotes='",parens=(),star=*,comma=,
#              ----- renameLNX output OK if deletes hardoded -----
# file#1=comma=leftparen=rightparen=exclamation=
# file#2=blankscomma=leftparen=rightparen=exclamation=  <-- renameLNX hard-coded OK
# file#3-exclam=dollar=amp=quotes=parens=star=comma=
# 
#Note - Also see "renameLNX1" alternate script, deletes as arg2, coded on tr as $chars
#
#           ----- renameLNX1 output BAD when deletes on arg2 & $chars on tr -----
# file#3-eclam=!,dollar=$,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 $'\x21\x24\x26\x27\x28\x29\x2A\x2C')
#  #===========================================================
#
# Why Hard-Coding on 'tr' works, but not substituting as in renameLNX1 ???
# renameLNX1 dirxx '\x20\x21\x22...etc...'  <-- renameLNX1 deletes arg2 (tr -d \$"$chars")
# ========================================
#    fn3=$(echo $fn1 | tr -d \$"$chars")    <-- $arg2 on tr does NOT work ???
#    #==================================