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bash: adjust example to read from file into array (#2187)

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* use `$()` rather than deprecated ``
* illustrate shortcut for builtin read of file without `cat`
* don't imply this reads lines, it will split into words by default

perhaps the cheatsheet should have a section on IFS, but that's
off-topic for this patch.

Co-authored-by: Rico Sta. Cruz <rstacruz@users.noreply.github.com>
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Kjetil Torgrim Homme 2025-07-01 00:25:49 +02:00 committed by GitHub
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bash.md
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@ -510,7 +510,7 @@ Fruits=( "${Fruits[@]/Ap*/}" ) # Remove by regex match
unset Fruits[2] # Remove one item
Fruits=("${Fruits[@]}") # Duplicate
Fruits=("${Fruits[@]}" "${Veggies[@]}") # Concatenate
lines=(`cat "logfile"`) # Read from file
words=($(< datafile)) # From file (split by IFS)
```
### Iteration