From 2a8f275a28a900ca11972e7402e84cece176e128 Mon Sep 17 00:00:00 2001
From: Alexander Neumann <alexander@bumpern.de>
Date: Sat, 11 Mar 2017 10:02:33 +0100
Subject: [PATCH] Manual: Document `TMPDIR` env variable

Closes #873
---
 doc/Manual.md | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/doc/Manual.md b/doc/Manual.md
index 560df2fcd..d4747190b 100644
--- a/doc/Manual.md
+++ b/doc/Manual.md
@@ -875,3 +875,17 @@ $ restic -r /tmp/backup snapshots --json | jq .
   }
 ]
 ```
+
+# Temporary files
+
+During some operations (e.g. `backup` and `prune`) restic uses temporary files
+to store data. These files will, by default, be saved to the system's temporary
+directory, on Linux this is usually located in `/tmp/`. The environment
+variable `TMPDIR` can be used to specify a different directory, e.g. to use the
+directory `/var/tmp/restic-tmp` instead of the default, set the environment
+variable like this:
+
+```console
+$ export TMPDIR=/var/tmp/restic-tmp
+$ restic -r /tmp/backup backup ~/work
+```