Add identify_drive.sh

identify_drive.sh

@@ -0,0 +1,119 @@
+#!/bin/bash 
+
+export OMIT=0
+
+[ ${DEBUG:=0} -gt 0 ] && set -x -v
+
+declare -a DRIVES MODELS CHOICE
+typeset -x DRIVES MODELS CHOICE CMDS
+
+TMPFILE="/tmp/identify_drive.$$"
+
+trap "rm -f ${TMPFILE}" EXIT HUP INT QUIT TERM
+
+CMDS="quit"
+
+# --------------------------------------------------------------------- #
+# Function    : LOAD_DRIVES                                             #
+# Description : Reads directory with ls parses and stores into array.   #
+#               used later to retreive drive for printing details       #
+# Parameters  : Nothing                                                 #
+# Returns     : Nothing                                                 #
+# Environment : DRIVES array, MODELS array                              #
+# --------------------------------------------------------------------- #
+load_drives()
+{
+    ls -l /dev/disk/by-id/ | egrep 'ata\-' > ${TMPFILE}
+
+    # rwxrwxrwx 1 root root  9 Apr 20 08:04 ata-Hitachi_HTS722020K9SA00_071007DP0400DTG101HA -> ../../sdf
+    # lrwxrwxrwx 1 root root 10 Apr 20 08:04 ata-Hitachi_HTS722020K9SA00_071007DP0400DTG101HA-part1 -> ../../sdf1
+    # I know it's inefficient.
+    # but piping mount into loop creates a subprocess
+    # whereby the export inside the loop never gets
+    # back to the parent.
+
+    i=0
+    while read PERMS LINKS OWNER GROUP XX MONTH DD HHMM MODEL LINKER DEV
+    do
+        # ${parameter:offset:length}
+        NAME=${DEV:6:4}                 # Save Whole Drive
+        DEV=${DEV:6:3}                  # Remove Partition #
+        if [ ${DEV} != ${NAME} ]; then continue; fi
+        for OMODEL in ${OMIT_MODELS[*]}
+        do  length=${#OMODEL}
+            if [ ${MODEL:0:$length} = ${OMODEL} ];then OMIT=1;fi
+        done
+        if [ ${OMIT:=0} -gt 0 ]
+           then OMIT=0
+                continue
+        fi
+        DRIVES[$i]="/dev/${DEV}"
+        MODELS[$i]="${MODEL}"
+        CHOICE[$i]="/dev/${DEV} ${MODEL}"
+        ((i++))
+    done  < ${TMPFILE}
+
+    rm -f ${TMPFILE}
+
+}
+
+
+present_drives()
+{
+    PS3="identify> "
+    select DRIVE in "${CHOICE[@]}" ${CMDS}
+    do
+        echo "DRIVE: $DRIVE, REPLY: ${REPLY}"
+        if [ -z "${DRIVE}" -a ! -z "${REPLY}" ]
+           then DRIVE="${REPLY}"
+        fi
+        if [ -z "${DRIVE}" ]
+           then return
+        fi
+        case "${DRIVE}" in
+        q*|Q* )  exit;;
+        e*|e* )  exit;;
+        *     )  set ${DRIVE}; identify $@; return;;
+        esac
+   done
+}
+
+
+
+identify()
+{
+
+  ID=$1
+  [ ! -z "${2}" ] && ID="$ID ($2)"
+
+  echo -e "Reading ${ID}"
+  while ! read -n1 -t1
+  do
+    echo -e "\r\007press ANY key to stop: [+]: \c"
+    dd if=$1 of=/dev/null bs=1025K count=10   skip=${SKIP} 2>/dev/null 
+    read -n1 -t1 && break
+    ((SKIP=SKIP+1000))
+
+    echo -e "\r\007press ANY key to stop: [x]: \c"
+    dd if=$1 of=/dev/null bs=1025K count=10   skip=${SKIP} 2>/dev/null
+    read -n1 -t1 && break
+    ((SKIP=SKIP+1000))
+
+    echo -e "\r\007press ANY key to stop: [-]: \c"
+    dd if=$1 of=/dev/null bs=1025K count=100  skip=${SKIP} 2>/dev/null
+    # sleep 1
+    ((SKIP=SKIP+10000))
+  done
+  echo -e "\nDone."
+}
+
+
+if [ ! -z "${1}" ]
+   then identify $1
+        exit
+fi
+
+while true
+do load_drives 
+   present_drives
+done