If you write a bash script that shows system information in WM_NAME, it executes a huge amount of external command (top, free etc.) every few seconds. This results in high system resource usage. slstatus solves this problem by only using C libraries and/or reading from files in sysfs / procfs.
-Looking at the LOC (lines of code) in the [Conky project](https://github.com/brndnmtthws/conky) is very interesting: **28.346 lines C++, 219 lines Python and 110 lines Lua**. slstatus currently has about 500 lines of clean, well commented C code and even includes additional possibilities as it can be customized and extended very easily. Configuring it by editing config.h (a C header file) is very secure and fast as no config files are parsed at runtime.
+Looking at the LOC (lines of code) in the [Conky project](https://github.com/brndnmtthws/conky) is very interesting: *28.346 lines C++, 219 lines Python and 110 lines Lua*. slstatus currently has about **500 lines of clean, well commented C code** and even includes additional possibilities as it can be customized and extended very easily. Configuring it by editing config.h (a C header file) is very secure and fast as no config files are parsed at runtime.
The following information is included:
- battery percentage
- cpu usage (in percent)
+- custom shell commands
- date and time
- disk numbers (free storage, percentage, total storage and used storage)
- available entropy
- ram numbers (free ram, percentage, total ram and used ram)
- temperature
- volume percentage (alsa)
-- wifi percentage
+- wifi percentage and essid
Multiple entries per function are supported and everything can be reordered and customized via the C header file config.h (similar to DWM).
```
while true; do
- slstatus
+ slstatus
done &
```