Nautlius: add mouse right-click action to compute MD5 sum [duplicate]

Context: 16.04

How does one mouse right-click action to compute the MD5 sum of a file?

You can work with a nautilus script.

Create the scripts directory if it does not yet exist
```
mkdir -p ~/.local/share/nautilus/scripts/
```
Place your script into that directory and make it executable (chmod +x <name_of_script> or via your file manager: right-click file, properties). Any executable script you put there will be available under an entry "Scripts" in your right-click menu.

In your script, you can use the variable NAUTILUS_SCRIPT_SELECTED_FILE_PATHS to retrieve a newline-delimited list of selected files (i. e., one file path in case you selected a single file). You will also need to display the output: this can be done by piping the output of the command to zenity. This simple script will already cut it:
```
#!/bin/bash
set -eu -o pipefail
md5sum "$NAUTILUS_SCRIPT_SELECTED_FILE_PATHS" | zenity --text-info
```

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