Redirecting Input/Output
The Korn shell provides a number of operators that can be used to manipulate command input/output, files, and co-processes.
I/O Redirection Operators
<file | redirect standard input from file |
>file | redirect standard output to file. Create file if non-existent, else overwrite. |
>>file | append standard output to file. Create file if non-existent. |
>|file | redirect standard output to file. Create file if non-existent, else overwrite even if noclobber is set. |
<>file | open file for reading & writing as standard input |
<&– | close standard input |
>&– | close standard output |
<&n | redirect standard input from file descriptor n |
>&n | redirect standard output to file descriptor n |
n<file | redirect file descriptor n from file |
n>file | redirect file ... |
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