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-rw-r--r--doc/manual/installation/installing-binary.xml8
1 files changed, 8 insertions, 0 deletions
diff --git a/doc/manual/installation/installing-binary.xml b/doc/manual/installation/installing-binary.xml
index da54e2bedd6f..2a9beec98c9b 100644
--- a/doc/manual/installation/installing-binary.xml
+++ b/doc/manual/installation/installing-binary.xml
@@ -26,6 +26,14 @@ $ mkdir /nix
 $ chown alice /nix
 </screen>
 
+The install script will modify the first writable file from amongst
+<filename>.bash_profile</filename>, <filename>.bash_login</filename>
+and <filename>.profile</filename> to source
+<filename>~/.nix-profile/etc/profile.d/nix.sh</filename>. You can set
+the <command>NIX_INSTALLER_NO_MODIFY_PROFILE</command> environment
+variable before executing the install script to disable this
+behaviour.
+
 </para>
 
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