Brackets

src/freedombone

       echo "            cd /home/$MY_USERNAME/.gnupg_fragments" >> /usr/bin/$BACKUP_TO_FRIENDS_SCRIPT_NAME
       echo '            no_of_shares=$(ls -afq keyshare.asc.* | wc -l)' >> /usr/bin/$BACKUP_TO_FRIENDS_SCRIPT_NAME
       echo '            no_of_shares=$((no_of_shares - 2))' >> /usr/bin/$BACKUP_TO_FRIENDS_SCRIPT_NAME
-      echo '            if [[ ${no_of_shares} > 0 ]]; then' >> /usr/bin/$BACKUP_TO_FRIENDS_SCRIPT_NAME
+      echo '            if (( no_of_shares > 0 )); then' >> /usr/bin/$BACKUP_TO_FRIENDS_SCRIPT_NAME
       echo '                # Pick a share index based on the domain name' >> /usr/bin/$BACKUP_TO_FRIENDS_SCRIPT_NAME
       echo '                # This ensures that the same share is always given to the same domain' >> /usr/bin/$BACKUP_TO_FRIENDS_SCRIPT_NAME
       echo '                sharenumstr=$(md5sum <<< "$REMOTE_DOMAIN")' >> /usr/bin/$BACKUP_TO_FRIENDS_SCRIPT_NAME

src/freedombone-config

   # count the number of dots in the domain name
   dots=${TEST_DOMAIN_NAME//[^.]}
   no_of_dots=${#dots}
-  if (( $no_of_dots > 3 )); then
+  if (( no_of_dots > 3 )); then
       TEST_DOMAIN_NAME="The domain $TEST_DOMAIN_NAME has too many subdomains. It should be of the type w.x.y.z, x.y.z or y.z"
   fi
-  if (( $no_of_dots == 0 )); then
+  if (( no_of_dots == 0 )); then
       TEST_DOMAIN_NAME="The domain $TEST_DOMAIN_NAME has no top level domain. It should be of the type w.x.y.z, x.y.z or y.z"
   fi
 }
 
   # check the number of entries in the file
   no_of_servers=$(cat $REMOTE_SERVERS_LIST | wc -l)
-  if [[ ${no_of_servers} < 3 ]]; then
+  if (( no_of_servers < 3 )); then
       dialog --title "Encryption keys" \
              --msgbox 'There must be at least three servers to recover the key' 6 70
       return 2
         return
     fi
     cd /home/$MY_USERNAME/.gnupg_fragments
-    no_of_shares=$(ls -afq keyshare* | wc -l)
+    no_of_shares=$(ls -afq keyshare.asc.* | wc -l)
     no_of_shares=$((no_of_shares - 2))
-    if [[ ${no_of_shares} < 4 ]]; then
+    if (( no_of_shares < 4 )); then
         dialog --title "Encryption keys" --msgbox 'Not enough fragments to reconstruct the key' 6 70
         exit 7348
     fi
       if [[ $INSTALLING_ON_BBB == "yes" ]]; then
           GPG_USB_DRIVE='/dev/sda1'
           if [ ! -b $GPG_USB_DRIVE ]; then
-              if [[ ${GPG_CTR} > 0 ]]; then
+              if (( GPG_CTR > 0 )); then
                   reconstruct_key
                   return 0
               fi
               if [ ! -b $GPG_USB_DRIVE ]; then
                   GPG_USB_DRIVE='/dev/sdd1'
                   if [ ! -b $GPG_USB_DRIVE ]; then
-                      if [[ ${GPG_CTR} > 0 ]]; then
+                      if (( GPG_CTR > 0 )); then
                           reconstruct_key
                           return 0
                       fi
       fi
       mount $GPG_USB_DRIVE $GPG_USB_MOUNT
       if [ ! "$?" = "0" ]; then
-          if [[ ${GPG_CTR} > 0 ]]; then
+          if (( GPG_CTR > 0 )); then
               rm -rf $GPG_USB_MOUNT
               reconstruct_key
               return 0
 
       if [ ! -d $GPG_USB_MOUNT/.gnupg ]; then
           if [ ! -d $GPG_USB_MOUNT/.gnupg_fragments ]; then
-              if [[ ${GPG_CTR} > 0 ]]; then
+              if (( GPG_CTR > 0 )); then
                   umount -f $GPG_USB_MOUNT
                   rm -rf $GPG_USB_MOUNT
                   reconstruct_key

src/freedombone-recoverkey

 cd $FRAGMENTS_DIR
 no_of_shares=$(ls -afq keyshare.asc.* | wc -l)
 no_of_shares=$((no_of_shares - 2))
-if [[ ${no_of_shares} == 0 ]]; then
+if (( no_of_shares == 0 )); then
     echo 'No key fragments were retrieved'
     exit 76882
 fi