From c76673f7d2e75bd2ab0f1d46f5e5aa01ba23dbb4 Mon Sep 17 00:00:00 2001
From: Pierre Gay <pierre.gay@u-bordeaux.fr>
Date: Fri, 6 Mar 2015 16:53:39 +0100
Subject: [PATCH] improve usage message

---
 scripts/iextract | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/scripts/iextract b/scripts/iextract
index 1c64e35..d858af4 100755
--- a/scripts/iextract
+++ b/scripts/iextract
@@ -178,7 +178,12 @@ if __name__ == "__main__":
     usage = """\
 usage: %prog [options] COLLECTION...
 
-extract data and metadata out of iRODS
+extract data and metadata out of iRODS.
+
+Data are extracted through irsync inside a local directory named after COLLECTION basename.
+
+If metadata (system, acls or user) are required, they are stored in csv files also named after COLLECTION basename in
+the current working directory.
 """
 
     parser = OptionParser( usage = usage )