+++
+++

## why?
lets take this script:

```bash
rm -fr data.json
curl https://url.com/data.json -o data.json
```

the problem here is that `curl` might not be installed on second line, but the data is already deleted.

it will result in `data.json` being irreparably deleted and no way to reinstall it

## solution
you could write up something like this and put it in the start:

```sh
if ! command -v curl; then
    echo no curl!
    exit 1
fi
```

but that's just not reliable and barely maintainable. so that's why i made this thing.

you can use it like this:

```sh
# program.sh
#!/usr/bin/env bash
curl https://url.com
```

then compile it like that: `bshchk program.sh dist.sh`.

also you can read the script from stdin: `cat program.sh | bshchk - dist.sh`, or get the output to stdout: `bshchk program.sh > dist.sh`