diff --git a/.config/bash/module/archive.sh b/.config/bash/module/archive.sh
index 675d55b..25f5488 100644
--- a/.config/bash/module/archive.sh
+++ b/.config/bash/module/archive.sh
@@ -11,6 +11,7 @@ archive()
   local IFS=$'\n'
   local targets=("${@}")      # target file(s).
   local count=0               # processed count.
+  local failed=0
   local total=${#}            # total to process.
   local date=$(_ARCHIVE_DATE) # date stamp.
 
@@ -30,13 +31,17 @@ archive()
     echo -e "${status}"
 
     # create archive.
-    tar -c "${target}" | pv -s $(du -sb "${target}" | awk '{print $1}') | xz -9e > "${target%/*}".txz
+    tar -c "${target}" | pv -s $(du -sb "${target}" | awk '{print $1}') | xz -9e > "${target%/*}".txz || ((failed++))
     
     # append hash to target name.
-    mv "${target%/*}".txz "${target%/*}"_${date}-$(pv "${target%/*}".txz | sha1sum | cut -d\  -f1).txz
+    mv "${target%/*}".txz "${target%/*}"_${date}-$(pv "${target%/*}".txz | sha1sum | cut -d\  -f1).txz || ((failed++))
 
     # report success.
-    echo -e "${color_green}${status}: Done.${color_default}"
+    if [[ ${failed} = 0 ]]; then
+      echo -e "${color_green}${status}: Done.${color_default}"
+    else
+      echo -e "${color_bred}${status}: Failed.${color_default}"
+    fi
   done
 }
 
@@ -47,6 +52,7 @@ archive_fast()
   local IFS=$'\n'
   local targets=("${@}")      # target file(s).
   local count=0               # processed count.
+  local failed=0
   local total=${#}            # total to process.
   local date=$(_ARCHIVE_DATE) # date stamp.
 
@@ -66,13 +72,17 @@ archive_fast()
     echo -e "${status}"
 
     # create archive.
-    tar -c "${target}" | pv -s $(du -sb "${target}" | awk '{print $1}') | gzip -1 > "${target%/*}".tgz
+    tar -c "${target}" | pv -s $(du -sb "${target}" | awk '{print $1}') | gzip -1 > "${target%/*}".tgz || ((failed++))
     
     # append hash to target name.
-    mv "${target%/*}".tgz "${target%/*}"_${date}-$(pv "${target%/*}".tgz | sha1sum | cut -d\  -f1).tgz
+    mv "${target%/*}".tgz "${target%/*}"_${date}-$(pv "${target%/*}".tgz | sha1sum | cut -d\  -f1).tgz || ((failed++))
 
     # report success.
-    echo -e "${color_green}${status}: Done.${color_default}"
+    if [[ ${failed} = 0 ]]; then
+      echo -e "${color_green}${status}: Done.${color_default}"
+    else
+      echo -e "${color_bred}${status}: Failed.${color_default}"
+    fi
   done
 }
 
@@ -134,25 +144,46 @@ archive_prune()
   local IFS=$'\n'
   local targets=("${@}")
   local count=0
+  local failed=0
   local total=${#}
-  
+
   # All archives by default.
-  if [[ "${target}" = "" ]]; then
+  if [[ "${targets}" = "" ]]; then
     targets=($(ls | grep -E ${_ARCHIVE_PATTERN}))
     total=${#targets[@]}
   fi
 
   # Iterate each target.
   for target in "${targets[@]}"; do
-    # Only work with files.
+    # Only work with existing files.
     [[ -f "${target}" ]] || continue
 
     # Iterate counter.
     ((count++))
     
     local name="${target%_*}"
-    # local copies=("$()")
+    local data="${target##*_}"
+    local time="${data%%-*}"
+    local copies=($(ls ${name}_*))
+
+    # Iterate each copy.
+    for copy in "${copies[@]}"; do
+      local copy_data="${copy##*_}"
+      local copy_time="${copy_data%%-*}"
+
+      if [[ "${copy_time}" -lt "${time}" ]]; then
+        echo -e "${name}: prune ${copy_time}."
+        rm -- "${copy}" || ((failed++))
+      fi
+    done
   done
+
+  # Report result.
+  if [[ ${failed} = 0 ]]; then
+    echo -e "${color_green}All successful.${color_default}"
+  else
+    echo -e "${color_bred}Items failed to prune: ${failed}.${color_default}"
+  fi
 }
 
 # extract previously created archive with checksum validation.