Implemented options and arguments to Övning 5

Labb5/ovning5.sh

@@ -7,27 +7,58 @@
 
 # Set some variabels
 BackupTo="$HOME/backups/"
-
+declare Verbose
-# Set our binarys
 Tar="/bin/tar"
 
+# Help screens
+short_usage()
+{
+	echo "Usage: `basename $0` -b <dir> -f <filename.tar> -o <dir> -v -h"
+}
+
+long_usage()
+{
+	short_usage
+	cat <<- EOF
+	-b Directory to make a backup of
+	-f Optional tar output filename (default is the name of the directory)
+	-o Optional directory to put the backup in (default is \$HOME/backups)
+	-v Turn on tar -v (Verbose)
+	-h This help
+	EOF
+}
+
+# Parse arguments and options
+while getopts b:f:o:vh Opt; do
+	case "$Opt" in
+	b)  BackupThis=$OPTARG
+	    ;;
+	f)  File=$OPTARG	
+	    ;;
+	o)  BackupTo=$OPTARG
+	    ;;
+	v)  Verbose=v
+	    ;;
+	h)  long_usage
+	    ;;
+	*)  short_usage
+	    ;;
+	esac
+done
+
 # Sanity checks
-if [ $# -ne 1 ]; then
-	echo "Usage: $0 <directory>"
-	exit 2
-fi
-
 if [ ! -w $BackupTo ] || [ ! -d $BackupTo ]; then
-	echo "Can't write to $BackupTo or doesn't exist" > /dev/stderr
+	echo "Can't write to $BackupTo or $BackupTo doesn't exist" > /dev/stderr
 	exit 2
 fi
 
-if [ ! -r "$1" ]; then
+if [ ! -r $BackupThis ]; then
-	echo "Can't read $1"
+	echo "Can't read $BackupThis"
 	exit 2
 fi
 
-# Main
+# Main (do the actual backup)
-$Tar cvf ${BackupTo}`basename $1`.tar $1
+
+$Tar cf$Verbose ${BackupTo}/`basename $BackupThis`.tar $BackupThis
 
 exit 0

Labb5/ovning5_todo.txt

@@ -0,0 +1,2 @@
+[ ] Check if backup.tar already exist (we don't want to overwrite it)
+[ ]