Concept: Pipelines and Command Lists #714
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IsaacG
approved these changes
Nov 25, 2024
| ``` | ||
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| The pipe symbol (`|`) connects the output of one command to the input of another. | ||
| `cut` reads the output of `cat`, and `sort` reads the output of `cut`. |
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Do you want to take a step back and mention how many commands read from STDIN (and/or a file) and write to STDOUT? Introduce STDIN/STDOUT?
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Right, I'll do a "sneak preview" of I/O, with a promise of more to come in a later concept.
| exit 1 | ||
| } | ||
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| [[ $x -eq 5 ]] || die "x must be equal to 5" |
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Is there a reason you're using [[ and not (( for numbers?
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arithmetic is the next one.
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Yup. But you're still using [[ for numbers, which I usually tell people to avoid. Could this be a string operation instead?
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Yes of course. It's just example code here, I do a user/password thingy
Co-authored-by: Isaac Good <[email protected]>
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