fix usage

CHANGELOG.md

@@ -1,5 +1,5 @@
 # CHANGELOG
 
-## v0.0.3 - Unreleased
+## v0.0.4 - Unreleased
 
 - First version

cmd/moni/moni.go

@@ -58,19 +58,20 @@ func usage() {
 	print("")
 	print("    -%s", apiKeyFlag)
 	print("        Monibot API Key, default is %q.", defaultApiKey)
-	print("        You can set this also via environment variable %s.", apiKeyEnvKey)
+	print("        You can set this also via environment variable %s (recommended).", apiKeyEnvKey)
 	print("        You can find your API Key in your profile on https://monibot.io.")
+	print("        Note: Keep your API Key secret at all times.")
 	print("")
 	print("    -%s", trialsFlag)
-	print("        Max. Send trials, default is %d.", defaultTrials)
+	print("        Max. Send trials, default is %v.", defaultTrials)
 	print("        You can set this also via environment variable %s.", trialsEnvKey)
 	print("")
 	print("    -%s", delayFlag)
-	print("        Delay between trials, default is %d.", defaultDelay)
+	print("        Delay between trials, default is %v.", defaultDelayStr)
 	print("        You can set this also via environment variable %s.", delayEnvKey)
 	print("")
 	print("    -%s", verboseFlag)
-	print("        Verbose output, default is %t.", defaultVerbose)
+	print("        Verbose output, default is %v.", defaultVerboseStr)
 	print("        You can set this also via environment variable %s ('true' or 'false').", verboseEnvKey)
 	print("")
 	print("Commands")
@@ -97,7 +98,10 @@ func usage() {
 	print("        Get machine by id.")
 	print("")
 	print("    sample <machineId> [interval]")
-	print("        Send resource usage (cpu/mem/disk) samples for machine.")
+	print("        Send resource usage (load/cpu/mem/disk) samples for machine.")
+	print("        Moni consults various files (/proc/loadavg, /proc/cpuinfo)")
+	print("        and commands (free, df) to calculate resource usage.")
+	print("        It currently supports linux only.")
 	print("        If interval is specified, moni will keep sampling in")
 	print("        the background. Min. interval is 1m. If interval is left")
 	print("        out, moni will send one sample and then exit.")
@@ -117,7 +121,7 @@ func usage() {
 	print("        Value must be a non-negative 64-bit integer value.")
 	print("")
 	print("    config")
-	print("        Show config.")
+	print("        Show config values.")
 	print("")
 	print("    version")
 	print("        Show program version.")

version.go

@@ -1,4 +1,4 @@
 package monibot
 
 // Version is the semver version of the monibot SDK.
-const Version = "v0.0.3"
+const Version = "v0.0.4"