Add usage

README.md

@@ -0,0 +1,27 @@
+# Klipper Log Tool
+
+Parses the log and only returns important information for debugging
+
+## Upload the last start to a pastebin
+
+```bash
+bash <(curl -sSL https://raw.githubusercontent.com/reemo3dp/klipper_log_tool/main/klipper_log_tool.sh) --upload
+```
+
+## Upload all starts minus the noise to a pastebin
+
+```bash
+bash <(curl -sSL https://raw.githubusercontent.com/reemo3dp/klipper_log_tool/main/klipper_log_tool.sh) --upload --all-starts
+```
+
+## Upload a klippy.log other than the default (~/printer_data/logs/klippy.log)
+
+```bash
+bash <(curl -sSL https://raw.githubusercontent.com/reemo3dp/klipper_log_tool/main/klipper_log_tool.sh) --upload --all-starts /home/pi/klippy.log
+```
+
+## Only de-noise the input
+
+```bash
+bash <(curl -sSL https://raw.githubusercontent.com/reemo3dp/klipper_log_tool/main/klipper_log_tool.sh) --all-starts /home/pi/klippy.log
+```

klipper_log_tool.sh

@@ -58,6 +58,8 @@ if [[ $# -eq 0 ]]; then
         echo >&2 "No file specified and default file $FILE does not exist."
         usage
     fi
+else
+    FILE="$1"
 fi
 
 set -u
@@ -85,7 +87,7 @@ process_klipper_log() {
         remove_noise
 }
 
-OUTPUT=$(process_klipper_log "$1")
+OUTPUT=$(process_klipper_log "$FILE")
 echo "$OUTPUT"
 
 if [[ $UPLOAD -eq 1 ]]; then