diff --git a/calculate-sha256sum@rcalixte/CHANGELOG.md b/calculate-sha256sum@rcalixte/CHANGELOG.md
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+
+### 1.0
+
+* Initial release
diff --git a/calculate-sha256sum@rcalixte/README.md b/calculate-sha256sum@rcalixte/README.md
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+CALCULATE SHA256SUM
+===================
+
+Calculate the sha256sum for a single file.
+
+DESCRIPTION
+-----------
+
+This is an action to calculate the sha256sum for a specific file.
+This is particularly useful for verifying ISOs for example.
+
+DEPENDENCIES
+------------
+
+The following programs must be installed and available:
+
+* `sha256sum` to calculate the hash of file
+* `zenity` to display the dialog with the result
diff --git a/calculate-sha256sum@rcalixte/calculate-sha256sum@rcalixte.nemo_action.in b/calculate-sha256sum@rcalixte/calculate-sha256sum@rcalixte.nemo_action.in
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+[Nemo Action]
+_Name=Calculate sha256sum
+_Comment=Calculate the sha256sum for this file
+Exec=<calculate-sha256sum@rcalixte/calculate-sha256sum@rcalixte.sh %F>
+Selection=s
+Extensions=nodirs;
+Dependencies=sha256sum;zenity;
diff --git a/calculate-sha256sum@rcalixte/files/calculate-sha256sum@rcalixte/calculate-sha256sum@rcalixte.sh b/calculate-sha256sum@rcalixte/files/calculate-sha256sum@rcalixte/calculate-sha256sum@rcalixte.sh
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+++ b/calculate-sha256sum@rcalixte/files/calculate-sha256sum@rcalixte/calculate-sha256sum@rcalixte.sh
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+#! /bin/bash
+
+FILENAME="$1"
+BASENAME="$(/usr/bin/basename "$FILENAME")"
+TITLE="SHA256SUM FOR ${BASENAME}"
+
+(
+  HASH=$(/usr/bin/sha256sum "${FILENAME}" | /usr/bin/cut -f1 -d' ')
+  exec 1>&-
+  /usr/bin/zenity --title="${TITLE}" --info --text="${HASH}" --no-wrap
+) | /usr/bin/zenity --title="Calculating sha256sum for ${FILENAME}..." --progress --auto-close --no-cancel --pulsate
diff --git a/calculate-sha256sum@rcalixte/files/calculate-sha256sum@rcalixte/icon.png b/calculate-sha256sum@rcalixte/files/calculate-sha256sum@rcalixte/icon.png
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diff --git a/calculate-sha256sum@rcalixte/files/calculate-sha256sum@rcalixte/metadata.json b/calculate-sha256sum@rcalixte/files/calculate-sha256sum@rcalixte/metadata.json
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+++ b/calculate-sha256sum@rcalixte/files/calculate-sha256sum@rcalixte/metadata.json
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+{
+    "description": "Calculate the sha256sum for a single file",
+    "uuid": "calculate-sha256sum@rcalixte",
+    "name": "Calculate sha256sum",
+    "author": "rcalixte",
+    "version": "1.0"
+}
diff --git a/calculate-sha256sum@rcalixte/files/calculate-sha256sum@rcalixte/po/calculate-sha256sum@rcalixte.pot b/calculate-sha256sum@rcalixte/files/calculate-sha256sum@rcalixte/po/calculate-sha256sum@rcalixte.pot
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+++ b/calculate-sha256sum@rcalixte/files/calculate-sha256sum@rcalixte/po/calculate-sha256sum@rcalixte.pot
@@ -0,0 +1,31 @@
+# Calculate sha256sum
+# Copyright (C) 2023
+# Rick Calixte <10281587+rcalixte@users.noreply.github.com>, 2023.
+#
+#, fuzzy
+msgid ""
+msgstr ""
+"Project-Id-Version: 1.0\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2023-11-26 22:48-0500\n"
+"PO-Revision-Date: \n"
+"Last-Translator: \n"
+"Language-Team: \n"
+"Language: en\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"X-Generator: Poedit 3.4\n"
+
+#. metadata.json->description
+msgid "Calculate the sha256sum for a single file"
+msgstr ""
+
+#. metadata.json->name
+#. Name
+msgid "Calculate sha256sum"
+msgstr ""
+
+#. Comment
+msgid "Calculate the sha256sum for this file"
+msgstr ""
diff --git a/calculate-sha256sum@rcalixte/info.json b/calculate-sha256sum@rcalixte/info.json
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+++ b/calculate-sha256sum@rcalixte/info.json
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+{
+    "author": "rcalixte"
+}