diff --git a/README.md b/README.md
index b6006eb..c310626 100644
--- a/README.md
+++ b/README.md
@@ -116,6 +116,12 @@ y: mark copy
 m: mark move
 d: mark trash (~/.cache/fff/trash/)
 b: mark bulk rename
+
+Y: mark all for copy
+M: mark all for move
+D: mark all for trash (~/.cache/fff/trash/)
+B: mark all for bulk rename
+
 p: paste/move/delete/bulk_rename
 c: clear file selections
 
@@ -232,6 +238,11 @@ export FFF_KEY_MOVE="m"
 export FFF_KEY_TRASH="d"
 export FFF_KEY_BULK_RENAME="b"
 
+export FFF_KEY_YANK_ALL="Y"
+export FFF_KEY_MOVE_ALL="M"
+export FFF_KEY_TRASH_ALL="D"
+export FFF_KEY_BULK_RENAME_ALL="B"
+
 export FFF_KEY_PASTE="p"
 export FFF_KEY_CLEAR="c"
 
diff --git a/fff b/fff
index 6742fd4..b1e39a5 100755
--- a/fff
+++ b/fff
@@ -330,26 +330,37 @@ mark() {
     [[ $PWD != "$mark_dir" ]] &&
         marked_files=()
 
-    if [[ ${marked_files[$1]} == "${list[$1]}" ]]; then
-        unset 'marked_files[scroll]'
+    if [[ $1 == all ]]; then
+        if ((${#marked_files[@]} != ${#list[@]})); then
+            marked_files=("${list[@]}")
+            mark_dir="$PWD"
+        else
+            marked_files=()
+        fi
 
+        redraw
     else
-        marked_files[$1]="${list[$1]}"
-        mark_dir="$PWD"
-    fi
+        if [[ ${marked_files[$1]} == "${list[$1]}" ]]; then
+            unset 'marked_files[scroll]'
+
+        else
+            marked_files[$1]="${list[$1]}"
+            mark_dir="$PWD"
+        fi
 
-    # Clear line before changing it.
-    printf '\e[K'
-    print_line "$1"
+        # Clear line before changing it.
+        printf '\e[K'
+        print_line "$1"
+    fi
 
     # Find the program to use.
     case "$2" in
-        y) file_program=(cp -iR) ;;
-        m) file_program=(mv -i) ;;
+        y|Y) file_program=(cp -iR) ;;
+        m|M) file_program=(mv -i) ;;
 
         # These are 'fff' functions.
-        d) file_program=(trash) ;;
-        b) file_program=(bulk_rename) ;;
+        d|D) file_program=(trash) ;;
+        b|B) file_program=(bulk_rename) ;;
     esac
 
     status_line
@@ -368,7 +379,7 @@ trash() {
         "$FFF_TRASH_CMD" "${@:1:$#-1}"
 
     else
-        cd "$FFF_TRASH" && "mv" "$@"
+        cd "$FFF_TRASH" && mv "$@"
 
         # Go back to where we were.
         cd - &>/dev/null ||:
@@ -709,6 +720,14 @@ key() {
             mark "$scroll" "$1"
         ;;
 
+        # Mark all files for operation.
+        "${FFF_KEY_YANK_ALL:=Y}"|\
+        "${FFF_KEY_MOVE_ALL:=M}"|\
+        "${FFF_KEY_TRASH_ALL:=D}"|\
+        "${FFF_KEY_BULK_RENAME_ALL:=B}")
+            mark all "$1"
+        ;;
+
         # Do the file operation.
         "${FFF_KEY_PASTE:=p}")
             [[ ${marked_files[*]} ]] && {
diff --git a/fff.1 b/fff.1
index 611dcfa..94d0ed5 100644
--- a/fff.1
+++ b/fff.1
@@ -46,6 +46,12 @@ y: mark copy
 m: mark move
 d: mark trash (~/\.cache/fff/trash/)
 b: mark bulk rename
+
+Y: mark all for copy
+M: mark all for move
+D: mark all for trash (~/\.cache/fff/trash/)
+B: mark all for bulk rename
+
 p: paste/move/delete/bulk_rename
 c: clear file selections
 
@@ -164,6 +170,11 @@ export FFF_KEY_MOVE="m"
 export FFF_KEY_TRASH="d"
 export FFF_KEY_BULK_RENAME="b"
 
+export FFF_KEY_YANK_ALL="Y"
+export FFF_KEY_MOVE_ALL="M"
+export FFF_KEY_TRASH_ALL="D"
+export FFF_KEY_BULK_RENAME_ALL="B"
+
 export FFF_KEY_PASTE="p"
 export FFF_KEY_CLEAR="c"