refactor: implemented hints from shellcheck

bin/clean_backup.bash

@@ -9,14 +9,14 @@ clean_backup() {
     YEAR="${2:0:4}"
     shift
     FIND="find ${TARGET} -maxdepth 1 -name ${YEAR}-*_*"
-    for DATE in ${*}
+    for DATE in "${@}"
     do
         FIND="${FIND} -not -name ${DATE}_*"
     done
-    if [[ `${FIND} | wc -l` -gt 0 ]]
+    if [[ $(${FIND} | wc -l) -gt 0 ]]
     then
         echo -e "\nPress [Enter] to clean backups based on this search:\n\t${FIND}" 1>&2
-        read
+        read -r
         ${FIND} -exec rm -rfv {} \;
     fi
 }

bin/remote_backup.bash

@@ -47,7 +47,7 @@ bash -c " \
     if [[ \"${BACKUP_ID}\" != \"\" ]]; then wget -O- \"https://backup.petrknap.cz/touch.php?id=${BACKUP_ID}\"; fi \
 ) \
 || ( \
-    rm "${LAST_WORKING_DIR}"; \
-    ln -s "${WORKING_DIR}" "${LAST_WORKING_DIR}"; \
+    rm \"${LAST_WORKING_DIR}\"; \
+    ln -s \"${WORKING_DIR}\" \"${LAST_WORKING_DIR}\"; \
 ) \
 "

roles/Git/files/macros.bash

@@ -15,9 +15,9 @@ git() {
             command echo "    You must specify branch as 3rd parameter."
         else
             MERGED_TO="$3"
-            for MERGED_BRANCH in `command git branch --merged "$MERGED_TO" | grep -v "$MERGED_TO" | grep -v "master" | grep -v "*"`
+            for MERGED_BRANCH in $(command git branch --merged "$MERGED_TO" | grep -v "$MERGED_TO" | grep -v "master" | grep -v "\*")
             do
-                read -p "Are you sure you would like to delete $MERGED_BRANCH merged to $MERGED_TO? [Y/n] " CHOICE
+                read -rp "Are you sure you would like to delete $MERGED_BRANCH merged to $MERGED_TO? [Y/n] " CHOICE
                 if [[ "$CHOICE" == "Y" ]] || [[ "$CHOICE" == "y" ]] || [[ "$CHOICE" == "" ]]
                 then
                     command git branch --delete "$MERGED_BRANCH"