There is a lot of historical arcana baked into the command line and bash, but I've found it worth learning like any other language. Anyway, just for future ref

There is a lot of historical arcana baked into the command line and bash, but I've found it worth learning like any other language. Anyway, just for future reference you can use bash's `help` command to get documentation about builtins. In the case of conditionals, we want to loo at `test`: $ help test I find this a lot easier than wading through the bash man page.