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fixed ambiguous description for process substitution

pull/782/head
rcreddyn 2022-07-17 07:48:15 +05:30
parent 38725ee7e4
commit 2123b98b4f
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@ -144,7 +144,7 @@ Notes:
- The order of expansions is: brace expansion; tilde expansion, parameter and variable expansion, arithmetic expansion, and command substitution (done in a left-to-right fashion); word splitting; and filename expansion. (For example, a range like `{1..20}` cannot be expressed with variables using `{$a..$b}`. Use `seq` or a `for` loop instead, e.g., `seq $a $b` or `for((i=a; i<=b; i++)); do ... ; done`.) - The order of expansions is: brace expansion; tilde expansion, parameter and variable expansion, arithmetic expansion, and command substitution (done in a left-to-right fashion); word splitting; and filename expansion. (For example, a range like `{1..20}` cannot be expressed with variables using `{$a..$b}`. Use `seq` or a `for` loop instead, e.g., `seq $a $b` or `for((i=a; i<=b; i++)); do ... ; done`.)
- The output of a command can be treated like a file via `<(some command)` (known as process substitution). For example, compare local `/etc/hosts` with a remote one: - The output of a command can be treated like input to another via `<(some command)` (known as process substitution). For example, compare local `/etc/hosts` with a remote one:
```sh ```sh
diff /etc/hosts <(ssh somehost cat /etc/hosts) diff /etc/hosts <(ssh somehost cat /etc/hosts)
``` ```