Improve runenv and share script

.local/bin/runenv

@@ -1,6 +1,7 @@
 #!/bin/sh
 
 CONTAINER_IMAGE="registry.makerforce.io/ambrose/env"
+CONTAINER_IMAGE_PWN="registry.makerforce.io/ambrose/pwn"
 CONTAINER_HOME="/home/ambrose"
 
 OPTIND=1
@@ -10,6 +11,7 @@ delete=""
 name=""
 ports="\n\t"
 volumes=""
+image="$CONTAINER_IMAGE"
 
 show_help() {
 cat << EOF
@@ -23,11 +25,12 @@ instead of a shell.
    -n NAME  give container a NAME
    -p PORT  forward host PORT to container PORT
    -v LIST  mount volume LIST. specify as LOCAL:MOUNT
+   -t       run pwntools instead
 
 EOF
 }
 
-while getopts "hxwn:p:v:" opt; do
+while getopts "hxwn:p:v:t" opt; do
 	case "$opt" in
 	x)
 		delete="--rm "
@@ -49,6 +52,9 @@ while getopts "hxwn:p:v:" opt; do
 		show_help
 		exit 0
 		;;
+	t)
+		image="$CONTAINER_IMAGE_PWN"
+		;;
 	:)
 		echo "Option -$OPTARG requires an argument." >&2
 		show_help
@@ -69,11 +75,11 @@ if [ "$ports" = "\n\t" ]; then
 	ports=""
 fi
 
-docker pull $CONTAINER_IMAGE
+docker pull $image
 
 cmd="\n\
 docker run -it $delete$name$ports$workdir$volumes\n\
-	$CONTAINER_IMAGE \n\
+	$image \n\
 	$@\
 "
 

.local/bin/share

@@ -48,6 +48,7 @@ while getopts "hn:e:f:" opt; do
 		echo "  -n NAME     Share FILE at /$BUCKET/NAME"
 		echo "  -e EXPIRES  Set link expiry (NN[h|m|s] or 'none') (default: $EXPIRE)"
 		echo ""
+		exit 0
 		;;
 	n)
 		NAME="$OPTARG"