add usage messages to auth/(enable disable status).

print useful message when user invokes these commands incorrectly
(thanks henesy)

3 files changed, 18 insertions, 0 deletions

diff --git a/sys/src/cmd/auth/disable b/sys/src/cmd/auth/disable
index 7ef714923..ee86b0acc 100755
--- a/sys/src/cmd/auth/disable
+++ b/sys/src/cmd/auth/disable
@@ -1,4 +1,10 @@
 #!/bin/rc
+
+if(! ~ $#* 1){
+	echo 'usage: auth/disable user' >[1=2]
+	exit usage
+}
+
 if(test -e /mnt/keys/$1)
 	echo -n disabled > /mnt/keys/$1/status
 if(test -e /mnt/netkeys/$1)
diff --git a/sys/src/cmd/auth/enable b/sys/src/cmd/auth/enable
index f7a91189c..3c44b7eb5 100755
--- a/sys/src/cmd/auth/enable
+++ b/sys/src/cmd/auth/enable
@@ -1,4 +1,10 @@
 #!/bin/rc
+
+if(! ~ $#* 1){
+	echo 'usage: auth/enable user' >[1=2]
+	exit usage
+}
+
 if(test -e /mnt/keys/$1)
 	echo -n ok > /mnt/keys/$1/status
 if(test -e /mnt/netkeys/$1)
diff --git a/sys/src/cmd/auth/status b/sys/src/cmd/auth/status
index 4dc0323ca..1e2e6a2a3 100755
--- a/sys/src/cmd/auth/status
+++ b/sys/src/cmd/auth/status
@@ -1,4 +1,10 @@
 #!/bin/rc
+
+if(! ~ $#* 1){
+	echo 'usage: auth/status user' >[1=2]
+	exit usage
+}
+
 cd /mnt/keys/$1 > /dev/null >[2=1] && {
 	stat=`{cat status}
 	exp=`{cat expire}