 | Chapter 45 Shell Programming for the Initiated |  |
| Chapter 45 Shell Programming for the Initiated | |
A: The first way keeps the script from reading anything else from its input. Consider the zip script:
A:
while read word do echo $word | sed s/foo/bar/ done
If run as sh zip, it will read from your terminal, replacing foo
with bar. If run as sh < zip, it will exit right away, since
after reading the script, there's no input left.
- in net.unix on Usenet, 29 December 1984
|  | |
| 45.23 The Ins and Outs of Redirected I/O Loops |  | 45.25 Shell Scripts On-the-Fly from Standard Input |
