<s>[INST] Write me POSIX-shellscript to convert Celsius to Kelvin. [/INST] Sure, no problem. The following short script called `celcius_to_kelvin.sh` takes the temperature in Celsius as argument and prints the temperature in Kelvin by adding 273.

```
#!/bin/bash

echo "$(($1 + 273))"
```

You can invoke it as follows:

```
$ bash celcius_to_kelvin.sh 23
296
```</s>