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bug diff command

From: PANEL
Subject: bug diff command
Date: Sat, 03 Jan 2015 23:02:52 +0100 
"diff -q"  seems recursively search files in subdirectories
"diff -qr" corrects this behavior curiously.

exemples with 2 directories containing same files :

address@hidden:~$ diff
-q  /media/WORK/topocad/ /media/BACKUPWORK/topocad/
Les sous-répertoires /media/WORK/topocad/doc
et /media/BACKUPWORK/topocad/doc sont identiques.
Les sous-répertoires /media/WORK/topocad/dxf
et /media/BACKUPWORK/topocad/dxf sont identiques.
Les sous-répertoires /media/WORK/topocad/hlp
et /media/BACKUPWORK/topocad/hlp sont identiques.
Les sous-répertoires /media/WORK/topocad/temp
et /media/BACKUPWORK/topocad/temp sont identiques.
address@hidden:~$ diff
-qr  /media/WORK/topocad/ /media/BACKUPWORK/topocad/
address@hidden:~$
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