Shell Programming and Scripting

cd desitnation
ll file.txt
Aug 17 17:22 file.txt


cp -p source/file.txt destination/

cd desitnation
ll file.txt
Aug 17 17:22 file.txt

df <path_to_source>
df <path_to_destination>

#!/bin/bash

src_file="/path/to/source/file"             # Define source file to copy
dst_file="/path/to/destin/file"             # Define target file to overwrite and preserve time on

ls -l "${dst_file}"                         # Let's just check it first
file_time=$(stat -c %Y "${dst_file}")       # Get the modification time in seconds since the Epoch

cp "${src_file}" "${dst_file}"              # Copy the file

touch -md "@${file_time}" "${dst_file}"     # Set the modification to the stored value (in seconds)

ls -l "${dst_file}"                         # Let's have a look now

cp -p source dest

src_file="/path/to/source/file"
dst_file="/path/to/destin/file"

cp "${src_file}" "${src_file}.tmp"
touch -r "${dst_file}"  "${src_file}.tmp"
mv "${src_file}.tmp" "${dst_file}"