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Hi, Just wondering, is there a fundamental difference between: cat textInput | ./prog_expecting_input and ./prog_expecting_input < textInput and cat textInput > ./prog_expecting_input Thanks in advance....
  1. 10-11-2010 #1
    roswell88
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    Basic Shell/Script Question

    Hi,
    Just wondering, is there a fundamental difference between:
    cat textInput | ./prog_expecting_input
    and
    ./prog_expecting_input < textInput
    and
    cat textInput > ./prog_expecting_input
    Thanks in advance.
    Last edited by roswell88; 10-11-2010 at 03:07 PM.
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  2. 10-11-2010 #2
    hazel
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    Well, the last one won't work. The redirection operator > can only be used to redirect output into a file, not to a program. I think the other two are equivalent.
    "I'm just a little old lady; don't try to dazzle me with jargon!"
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