6. bash: Duplicate an input file descriptor.

bash: Duplicate an input file descriptor.


  • Take into account the main readme for this section. README first.

    The contents of oneworld file is.

    One nation under a groove

    Open file descriptor 3 for input and read file oneworld.

    $ exec 3< oneworld

    Copy input file descriptor 3 to input file descriptor 4.

    $ exec 4<&3

    Confirm file descriptor 4 has a copy of file descriptor 3.

    $ cat <&4
One nation under a groove
bash 203 shell 89
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