extras: core-handler: simplify, allow usage from tracing group

[lttng-tools.git] / extras / core-handler / install.sh

diff --git a/extras/core-handler/install.sh b/extras/core-handler/install.sh
index 4e8d8443f05af868924f2859b995887757872ad5..8116805fdd314396177b05514826092dca390431 100755 (executable)
--- a/extras/core-handler/install.sh
+++ b/extras/core-handler/install.sh
@@ -17,18 +17,20 @@
 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #
 
-CORE_PATTERN="/proc/sys/kernel/core_pattern"
+CORE_PATTERN_PATH="/proc/sys/kernel/core_pattern"
 CORE_HANDLER_PATH="$(dirname $(readlink -e $0))/handler.sh"
+CORE_PATTERN="$(cat ${CORE_PATTERN_PATH})"
 
-cat ${CORE_PATTERN} > core_pattern.bkp
+echo ${CORE_PATTERN} > core_pattern.bkp
 
 echo "Backup current core_pattern in core_pattern.bkp."
 
-echo "|$CORE_HANDLER_PATH %p %u %g %s %t %h %e %E %c" > ${CORE_PATTERN}
+echo "|$CORE_HANDLER_PATH %p %u %g %s %t %h %e %E %c" > ${CORE_PATTERN_PATH}
 
 if [ $? -eq 0 ]
 then
-    echo "Successfully installed core_pattern."
+       echo "Successfully installed core_pattern."
 else
-    echo "Installation of core_pattern failed."
+       echo "Installation of core_pattern failed."
+       exit 1
 fi