Difference between revisions of "CLI I/O Redirection"
Jump to navigation
Jump to search
| Line 11: | Line 11: | ||
== Abbreviations == | == Abbreviations == | ||
| + | |||
| + | === stdio === | ||
| + | < = Send to | ||
| + | |||
| + | === stdout === | ||
| + | 1> = Redirect stdout, overwrite specified file | ||
| + | 1>> = Redirect stdout, append specified file | ||
| + | |||
| + | === stderr === | ||
| + | 2> = Redirect stderr, overwrite specified file | ||
| + | 2>> = Redirect stderr, append specified file | ||
== Examples == | == Examples == | ||
Revision as of 12:55, 22 March 2008
Introduction
The Command Line Interface (CLI) provides three types of input/output (I/O) flow.
- stdin = "Standard In;" input passed to a command
- stdout = "Standard Out;" output from a command
- stderr = "Standard Error;" error output from a command
This means that there are two types of output from any command stdout and stderr. It also means that you can separate them.
Commands
Abbreviations
stdio
< = Send to
stdout
1> = Redirect stdout, overwrite specified file 1>> = Redirect stdout, append specified file
stderr
2> = Redirect stderr, overwrite specified file 2>> = Redirect stderr, append specified file