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--- bash-stdin-or-filename [2024/02/01 23:19] – created dblume
+++ bash-stdin-or-filename [2024/02/19 14:31] (current) – Moving because now have stdin and stdout sections dblume
@@ Line 1: / Line 1: @@
-====== Bash Stdin or Filename ======
-If you write a shell script and want it to run with either stdin or a filename, like so:
-    cat text.txt | script.sh
-    script.sh text.txt
-There are some options:
-<file bash script.sh>
-#!/usr/bin/env sh
-awk -F, '...' "${1:-/dev/stdin}"
-</file>
-<file bash script.sh>
-#!/usr/bin/env sh
-cat "$@" | awk -F, '...'
-</file>
-<file bash script.awk>
-#!/bin/awk -f
-BEGIN{FS=","} ...
-</file>