1  #!/bin/sh
 2  
 3  # helper functions
 4  
 5  # errcho - a variant of echo that prints to stderr
 6  errcho() {
 7  	>&2 echo "$@"
 8  }
 9  
10  # subcommands
11  
12  eject() {
13  	if [ "$#" -lt 1 ]; then
14  		errcho "Usage:  diskutil eject MountPoint|DiskIdentifier|DeviceNode"
15  		exit 1
16  	fi
17  
18  	DISK_PATH=$1
19  	shift;
20  
21  	if [ ! -e "$DISK_PATH" ]; then
22  		errcho "Unable to find disk for $DISK_PATH"
23  		exit 1
24  	fi
25  
26  	if ! hdiutil detach "$DISK_PATH" > /dev/null 2>&1; then
27  		errcho "Unmount of $DISK_PATH failed: at least one volume could not be unmounted"
28  		exit 1
29  	fi
30  
31  	echo "Disk $DISK_PATH ejected"
32  }
33  
34  if [ "$#" -lt 1 ]; then
35  	>&2 cat <<- 'EOF'
36  		Disk Utility Tool
37  		Utility to manage local disks and volumes
38  		Most commands require an administrator or root user
39  		
40  		WARNING: Most destructive operations are not prompted
41  
42  		     eject                (Eject a disk)
43  	EOF
44  	exit 1
45  fi
46  
47  VERB="$1"
48  shift;
49  
50  case "$VERB" in
51  	eject)
52  		eject "$@"
53  		;;
54  	*)
55  		errcho "diskutil: did not recognize verb \"$VERB\"; type \"diskutil\" for a list"
56  		exit 1
57  		;;
58  esac