directory filename cleanup

bash_dir_name_cleanup.sh

# 1] convert all to lowercase letters

convmv --lower --notest *



# 2] remove naming defects such as :
#    a] consecutive spaces
#    b] weird characters like commas, parentheses, underscores, etc

# for a]

rename "s/\ +/ /g" *

# for b]
rename "s/,//g" *

# ps: i don't like file names with things like ".net" so i replace them with "dotnet"



# 3] if you have more than 1 dot in the file name apart from the file extension and 
# you want to preserve the file extension but remove the rest of them, then

# a] find out what kind of extensions you have and fix appropriately (if you have to)

find . -maxdepth 1 -name '*\.????' -print
find . -maxdepth 1 -name '*\.???' -print

# b] replace the dot of the extension to a symbol that does not match any file e.g. the hash mark '#'

rename 's/\.(.{3}$)/#$1/g' *

c] replace all the dot characters not denoting a version number i.e. must have non-digit characters either before or after the dot

rename 's/(\D)(\.)(\D)/$1 $3/g' *
rename 's/(\D)(\.)(\d)/$1 $3/g' *
rename 's/(\d)(\.)(\D)/$1 $3/g' *

d] replace the odd character with the dot for a proper file extension naming

rename "s/#/./g" *



# important
# when using the rename command provide the following switches
# -v : for verbose mode
# -n : do not perform any renaming, just display them in combination with -v