Shell Programming and Scripting

find . -maxdepth 1 -regex '.*[sS][0-9][0-9][eE][0-9][0-9].*'

find . -maxdepth 1 -regex '.*[sS]\d{2}[eExX]\d{2}.*'

find $1 -maxdepth 1 -regex '.*[sS][0-9][0-9][eE][0-9][0-9].*' -exec basename {} \; | while read FILE
do
  #mkdir SerialTitel.S01
  #mv $FILE ../sorted/SerialTitel.S01/
  # #instead of:
  mv $FILE ../sorted/
done

awk -v a=$FILE -v b=".[sS][0-9][0-9][eE][0-9][0-9]." 'BEGIN{print match(a,b)+3}'

awk -v a=$FILE -v b=".[sS][0-9][0-9][eE][0-9][0-9]." 'BEGIN{print substr(a,0,match(a,b)+3)}'

awk -v a=$FILE -v b=".[sS][0-9][0-9][eE][0-9][0-9]." 'BEGIN{print substr(a,0,match(a,b)+3)}'

${FILE%[Ee][0-9][0-9].*}

#!/bin/ksh
# Set pathname for parent destination directory.
DestDir="${PWD}/sorted"
# Move into source directory (named by 1st parameter; default: ./src)
cd ${1:-src}
# Process list of files containing desired pattern...
ls *.[Ss][0-9][0-9][Ee][0-9][0-9].* | while IFS="" read -r src
do      if [ ! -f "$src" ]
        then continue   # Skip all but regular files.
        fi
        # Extract subdirectory name in destination parent directory from $src:
        MidDir="${src%[Ee][0-9][0-9].*}"
        # Create the destination directory if it doesn't already exist.
        if [ ! -d "$DestDir/$MidDir" ]
        then    mkdir "$DestDir/$MidDir"
        fi
        # Move the source file to its new destination.
        mv "$src" "$DestDir/$MidDir"
done