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-rw-r--r--chapter07/functions.xml7
1 files changed, 5 insertions, 2 deletions
diff --git a/chapter07/functions.xml b/chapter07/functions.xml
index 15bda9133..748be6fd7 100644
--- a/chapter07/functions.xml
+++ b/chapter07/functions.xml
@@ -27,8 +27,11 @@ the following command:
if [ -z "$COLUMNS" ]
then
# Get the console device if we don't have it already
- test -z "$CONSOLE" && CONSOLE=/dev/console
-
+ # This is ok by the FHS as there is a fallback if
+ # /usr/bin/tty isn't available, for example at bootup.
+ test -x /usr/bin/tty && CONSOLE=`/usr/bin/tty`
+ test -z "$CONSOLE" && CONSOLE=/dev/console
+
# Get the console size (rows columns)
SIZE=$(stty size < $CONSOLE)