Added new checks and completed backup routine

autotape.sh

@@ -1,22 +1,26 @@
 #!/bin/bash
 
 ### Config options ###
+BACKUP_DIRS="/home/jake/Documents/wallpaper"
 DRIVE="/dev/st0"
+RECHECK_WAIT=60
+MT="/bin/mt"
+TAR="/bin/tar"
 
 
 ### Functions ###
 
 Do_backup()
 {
-  echo "Doing backup"
+  echo "Doing backup..."
+  ${TAR} -cf ${DRIVE} ${BACKUP_DIRS}
   exit 0
 }
 
-
 Check_drive()
 {
   if [ ! -e ${DRIVE} ]; then
-    echo "No drive connected"
+    echo "No drive connected" >&2
     EXIT_STATE=1
 
   elif [ -e ${DRIVE} ]; then   
@@ -24,34 +28,49 @@ Check_drive()
     EXIT_STATE=0 
   
   else
-       echo "Unknown error"
+       echo "Unknown error" >&2
     EXIT_STATE=3
   fi
 }
 
-
 Check_tape()
 {
-TESTTAPE=`mt -f ${DRIVE} status | grep DR_OPEN`
+TESTTAPE=`${MT} -f ${DRIVE} status | grep DR_OPEN`
   if [ $? == 0 ]; then
-    echo "No tape in drive, aborting"
+    echo "No tape in drive" >&2
     EXIT_STATE=1
 
   else
-    echo "Tape seems to exist"
+    echo "Tape seems to be in drive, contiuing"
     EXIT_STATE=0   
   fi
 }
+
+Check_utils()
+{
+if [ ! -x ${MT} ]; then
+  echo "Program ${MT} dosen't seem to exist..." >&2
+  exit 1
+fi
+
+if [ ! -x ${TAR} ]; then
+  echo "Program ${TAR} doesn't seem to exist..." >&2
+  exit 1
+fi
+}
   
 
 ### Main routine ###
 
+# Check if the utils/programs exists
+Check_utils
+
 # Check and repeat until the tape drive is on
 EXIT_STATE=3
 while [ ${EXIT_STATE} != 0 ]; do
   Check_drive
     if [ ${EXIT_STATE} != 0 ]; then
-      sleep 20
+      sleep ${RECHECK_WAIT}
     fi
 done
 
@@ -60,6 +79,9 @@ EXIT_STATE=3
 while [ ${EXIT_STATE} != 0 ]; do
   Check_tape
     if [ ${EXIT_STATE} != 0 ]; then
-      sleep 20
+      sleep ${RECHECK_WAIT}
     fi
 done
+
+Do_backup
+