Move And Copy

move_and_copy.sh

#!/bin/bash

# Check if both SRC and DST parameters are provided
if [ "$#" -ne 2 ]; then
  echo "Usage: $0 SRC DST"
  exit 1
fi

SRC="$1"
DST="$2"
SRC="${SRC%/}"
DST="${DST%/}"

# Function to handle script interruption (Ctrl+C)
handle_interrupt() {
  echo "Script interrupted by user. Exiting."
  exit 1
}

# Set trap for SIGINT (Ctrl+C)
trap handle_interrupt SIGINT

# Navigate to the source directory or exit if it fails
cd "$SRC" || {
  echo "Failed to cd into $SRC"
  exit 1
}

# Replicate the directory structure from source to destination with permissions 777.
sudo find . -type d -exec bash -c '
  for dir; do
    sudo mkdir -p "'"$DST"'/${dir#./}" && sudo chmod 755 "'"$DST"'/${dir#./}"
  done
' bash {} +
# Function to convert size to MB or GB
convert_size() {
  local size=$1
  if [ "$size" -lt 1048576 ]; then
    echo "$(bc <<<"scale=2; $size/1024") KB"
  elif [ "$size" -lt 1073741824 ]; then
    echo "$(bc <<<"scale=2; $size/1048576") MB"
  else
    echo "$(bc <<<"scale=2; $size/1073741824") GB"
  fi
}
# Calculate the total size of all files in bytes
total_size=$(du -cb "$(echo "$SRC")" | grep total | awk '{print $1}')
echo "Total size to transfer: $(convert_size $total_size)"
# Move files if the source file is larger or if the destination file does not exist.
find . -type f -exec bash -c '
  handle_interrupt() {
    echo "Interrupted. Exiting."
    exit 1
  }
  convert_size() {
    local size=$1
    if [ "$size" -lt 1048576 ]; then
        echo "$(bc <<< "scale=2; $size/1024") KB"
    elif [ "$size" -lt 1073741824 ]; then
        echo "$(bc <<< "scale=2; $size/1048576") MB"
    else
        echo "$(bc <<< "scale=2; $size/1073741824") GB"
    fi
  }
  src_size=0
  trap handle_interrupt SIGINT
  method() {
    file="$1"
    dest_file="'"$DST"'/${file#./}"
    if [[ -e "$dest_file" ]]; then
      src_size=$(stat -c%s "$file")
      dst_size=$(stat -c%s "$dest_file")

      if ((src_size > dst_size)); then
        echo "Source file $file is larger than destination. Moving and overwriting."
        sudo mv -fv "$file" "$dest_file" && sudo chmod 755 "$dest_file"
      else
        #echo "Destination file $dest_file exists and is not smaller than the source. Skipping."
        echo "Destination file $dest_file exists and is not smaller than the source. Removing source file."
        sudo rm -v "$file" # Remove the source file since the destination is not smaller
      fi
    else
      echo "Moving file $file to destination."
      sudo mv -nv "$file" "$dest_file" && sudo chmod 755 "$dest_file"
    fi
  }
  count=-1
  total_size='"$total_size"'
  for file in "$@"; do
    if [ "$count" -lt 0 ]; then
      count=$#
    fi
    method "$file"
    # Update and display remaining size
    if [[ -n "$src_size" ]]; then
      total_size=$(($total_size - $src_size))
    fi
    count=$((count - 1))
    echo "Remaining size to transfer: $(convert_size $total_size) in $count files"
  done

' bash {} +


# Clean up empty directories from the source.
sudo find . -mindepth 1 -type d -empty -exec sudo rmdir {} +

cd ../ && [ -z "$(ls -A "$SRC")" ] && rm -rf "$SRC"

echo "All operations completed."