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doc/backup: move exit status codes section up

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Michael Eischer 2024-08-25 23:53:12 +02:00
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doc/040_backup.rst
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@ -686,6 +686,30 @@ created as it would only be written at the very (successful) end of
the backup operation. Previous snapshots will still be there and will still the backup operation. Previous snapshots will still be there and will still
work. work.
Exit status codes
*****************
Restic returns an exit status code after the backup command is run:
* 0 when the backup was successful (snapshot with all source files created)
* 1 when there was a fatal error (no snapshot created)
* 3 when some source files could not be read (incomplete snapshot with remaining files created)
* further exit codes are documented in :ref:`exit-codes`.
Fatal errors occur for example when restic is unable to write to the backup destination, when
there are network connectivity issues preventing successful communication, or when an invalid
password or command line argument is provided. When restic returns this exit status code, one
should not expect a snapshot to have been created.
Source file read errors occur when restic fails to read one or more files or directories that
it was asked to back up, e.g. due to permission problems. Restic displays the number of source
file read errors that occurred while running the backup. If there are errors of this type,
restic will still try to complete the backup run with all the other files, and create a
snapshot that then contains all but the unreadable files.
For use of these exit status codes in scripts and other automation tools, see :ref:`exit-codes`.
To manually inspect the exit code in e.g. Linux, run ``echo $?``.
Environment Variables Environment Variables
********************* *********************
@ -774,27 +798,3 @@ See :ref:`caching` for the rules concerning cache locations when
The external programs that restic may execute include ``rclone`` (for rclone The external programs that restic may execute include ``rclone`` (for rclone
backends) and ``ssh`` (for the SFTP backend). These may respond to further backends) and ``ssh`` (for the SFTP backend). These may respond to further
environment variables and configuration files; see their respective manuals. environment variables and configuration files; see their respective manuals.
Exit status codes
*****************
Restic returns an exit status code after the backup command is run:
* 0 when the backup was successful (snapshot with all source files created)
* 1 when there was a fatal error (no snapshot created)
* 3 when some source files could not be read (incomplete snapshot with remaining files created)
* further exit codes are documented in :ref:`exit-codes`.
Fatal errors occur for example when restic is unable to write to the backup destination, when
there are network connectivity issues preventing successful communication, or when an invalid
password or command line argument is provided. When restic returns this exit status code, one
should not expect a snapshot to have been created.
Source file read errors occur when restic fails to read one or more files or directories that
it was asked to back up, e.g. due to permission problems. Restic displays the number of source
file read errors that occurred while running the backup. If there are errors of this type,
restic will still try to complete the backup run with all the other files, and create a
snapshot that then contains all but the unreadable files.
For use of these exit status codes in scripts and other automation tools, see :ref:`exit-codes`.
To manually inspect the exit code in e.g. Linux, run ``echo $?``.