Here document
Sending multiple lines into a pipe
Pipes
Pipes and Pipelines
In most script languages, a pipe is where the output of one command is passed as the input of a second command. It allows the chaining of multiple commands without the need of intermediary files.
File handles
Every command has 3 files open by default:
| File # | Name | Script | Description | ||
|---|---|---|---|---|---|
| Read | Create | Append | |||
| 0 | stdin | < | Input into the command | ||
| 1 | stdout | >&1 | >>&1 | Output from the command | |
| 2 | stderr | >&2 | >>&2 | Errors from the command | |
Last modified January 23, 2022: Test webhook (e5fbf77)