add rehash to instructions

diff --git a/html/installation.html b/html/installation.html
index f4ac884eb225694c2bdb5e2821cbb50a2ea937fb..56ea970f82205d088cd891016d9409ff037442ee 100644 (file)
--- a/html/installation.html
+++ b/html/installation.html
@@ -130,6 +130,15 @@ $ gmake
 
 <p><li>Copy the file $ALICE_ROOT/.rootrc to your home directory
 
+<p><li>For users with c-like shells, update your search path:
+
+<p>
+<pre>
+$ rehash
+</pre>
+
+<p>This usually has to be done only once, after having defined the new PATH.
+
 <p><li>Change to your home directory and run the code
 
 <p>