Author: dteske
Date: Sat Sep 22 22:16:07 2012
New Revision: 240843
URL: http://svn.freebsd.org/changeset/base/240843
Log:
jilles accurately advises that, in the context of shell redirection, the `:'
builtin is processed specially and thus the `: > file' syntax for example
will cause premature termination of the current shell on redirection-error.
The `true' builtin on the other-hand is not included in this special
processing (for compatibility reasons to satisfy legacy scripts programmed
for systems where `true' is not a builtin).
Change bare `: > file' syntax into `true > file' syntax to prevent premature
shell termination in the event of redirection-error.
NOTE: Instances of `: > file' that appear within a sub-shell have been left
unmodified as these will not cause premature termination of the main script.
Reviewed by: jilles, adrian (co-mentor)
Approved by: adrian (co-mentor)
Modified:
head/usr.sbin/bsdconfig/timezone/share/zones.subr
Modified: head/usr.sbin/bsdconfig/timezone/share/zones.subr
==============================================================================
--- head/usr.sbin/bsdconfig/timezone/share/zones.subr Sat Sep 22 22:04:17
2012 (r240842)
+++ head/usr.sbin/bsdconfig/timezone/share/zones.subr Sat Sep 22 22:16:07
2012 (r240843)
@@ -610,7 +610,7 @@ f_install_zoneinfo()
# Save knowledge for later
if [ "$REALLYDOIT" -a $rv -eq $SUCCESS ]; then
- if : 2> /dev/null > "$_PATH_DB"; then
+ if true 2> /dev/null > "$_PATH_DB"; then
cat <<-EOF > "$_PATH_DB"
$zoneinfo
EOF
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