initial commit

chapter1/function_ping_host

@@ -0,0 +1,26 @@
+function ping_host
+{
+HOST=$1 # Grab the host to ping from ARG1.
+PING_COUNT=3
+PACKET_SIZE=54
+
+# This next case statement executes the correct ping
+# command based on the Unix flavor
+
+case $(uname) in
+
+AIX|OpenBSD|Linux)
+           ping -c${PING_COUNT} $HOST 2>/dev/null
+           ;;
+HP-UX)
+           ping $HOST $PACKET_SIZE $PING_COUNT 2>/dev/null
+           ;;
+SunOS)
+           ping -s $HOST $PACKET_SIZE $PING_COUNT 2>/dev/null
+           ;;
+*)
+           echo "\nERROR: Unsupported Operating System - $(uname)"
+           echo "\n\t. . .EXITING. . .\n"
+           exit 1
+esac
+}