ex48.sh

来自「一本完整的描述Unix Shell 编程的工具书的所有范例」· Shell 代码 · 共 34 行

#!/bin/bash

# Copying a directory tree using 'cpio.'

# Advantages of using 'cpio':
#   Speed of copying. It's faster than 'tar' with pipes.
#   Well suited for copying special files (named pipes, etc.)
#+  that 'cp' may choke on.

ARGS=2
E_BADARGS=65

if [ $# -ne "$ARGS" ]
then
  echo "Usage: `basename $0` source destination"
  exit $E_BADARGS
fi  

source=$1
destination=$2

find "$source" -depth | cpio -admvp "$destination"
#               ^^^^^         ^^^^^
# Read the 'find' and 'cpio' man page to decipher these options.


# Exercise:
# --------

#  Add code to check the exit status ($?) of the 'find | cpio' pipe
#+ and output appropriate error messages if anything went wrong.

exit 0