Minor changes

README.md

@@ -9,6 +9,8 @@ Run a dump:
 Run a dump on a remote machine using ssh:
 > cat sysdump.sh | ssh user@host /bin/bash > dump.json
 
+Extra ouput from ssh (e.g: MOTD) will be automatically cleaned by `sysdump.sh`.
+
 To explore a dump (require `jq`), see help as follow:
 > ./sysdump.sh -h
 

sysdump.sh

@@ -29,7 +29,14 @@ dump() {
 	[ "$USE_COMMA" -eq 0 ] && echo "\"${entry}\": \"${value}\""
 }
 
+cleandump() {
+	newdump=$(mktemp)
+	cat "$1" | awk 'BEGIN{STARTED=0} /#!#!#!#! SYSDUMP START HERE #!#!#!#/{STARTED=1};/#!#!#!#! SYSDUMP END HERE #!#!#!#/{STARTED=0};!/#!#!#!#! SYSDUMP START HERE #!#!#!#/{if(STARTED){print $0}}' > "$newdump"
+	mv "$newdump" "$1"
+}
+
 sysdump() {
+	echo "#!#!#!#! SYSDUMP START HERE #!#!#!#"
 	# Start dump
 	echo "{"
 	USE_COMMA=1
@@ -106,6 +113,7 @@ sysdump() {
 	USE_COMMA=0
 	dump "dmesg" safecmdroot dmesg
 	echo "}"
+	echo "#!#!#!#! SYSDUMP END HERE #!#!#!#"
 }
 
 # Parse arguments
@@ -155,6 +163,7 @@ ensure base64
 
 # Do dump
 [ "$ACTION" == "dump" ] && { sysdump; exit 0; }
+[ $(grep -c '#!#!#!#! SYSDUMP START HERE #!#!#!#' "$1") -ne 0 ] && cleandump "$1"
 # List entries
 [ "$ACTION" == "list" ] && { ensure jq; cat "$1"|jq -r "keys[]"; exit 0; }
 # Parse dump file