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diff --git a/hyperterm/tools/rar2zip.sh b/hyperterm/tools/rar2zip.sh
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+#!/bin/bash
+#
+# rar2zip conversion script
+#
+# Usage: rar2zip file [file ...]
+# Example: rar2zip file.rar
+
+function rar2zip() {
+
+    echo "Converting RARs to ZIPs"
+
+    # Use RAM disk for temporary files.
+    WORKDIR="/dev/shm/"
+
+    for INFILE in "$@"; do
+        # Absolute path to old file
+        OLDFILE=$(realpath "${INFILE}")
+
+        # Get the file name without the extension
+        BASENAME=$(basename "${OLDFILE%.*}")
+
+        # Path for the file. The ".zip" file will be written there.
+        DIRNAME=$(dirname "$OLDFILE")
+
+        # Name of the .zip file
+        NEWNAME="${DIRNAME}/$BASENAME.zip"
+
+        if [ ! -e "${NEWNAME}" ]; then
+            # Set name for the temp dir. This directory will be created under WORKDIR
+            TEMPDIR=$(mktemp -p "$WORKDIR" -d)
+
+            # Create a temporary folder for unRARed files
+            echo "Extracting $OLDFILE"
+
+            unar "$OLDFILE" -o "${TEMPDIR}/"
+
+            # Zip the files with maximum compression
+            7z a -tzip -mx=9 "$NEWNAME" "${TEMPDIR}/*"
+            # Alternative. MUCH SLOWER, but better compression
+            # 7z a -mm=Deflate -mfb=258 -mpass=15 -r "$NEWNAME" *
+
+            # Preserve file modification time
+            touch -r "$OLDFILE" "$NEWNAME"
+
+            # Delete the temporary directory
+            rm -r "$TEMPDIR"
+
+            # OPTIONAL. Safe-remove the old file
+            # Restore from "$HOME/.local/share/Trash"
+            gio trash "$OLDFILE"
+            echo "${OLDFILE}: A backup was made on $HOME/.local/share/Trash"
+        else
+            echo "${NEWNAME}: File exists!"
+        fi
+    done
+
+    echo "Conversion Done"
+}