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Re[2]: substitution "read all from fd" silently fails: $(<&0)
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From: |
Ilya Basin |
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Subject: |
Re[2]: substitution "read all from fd" silently fails: $(<&0) |
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Date: |
Thu, 2 Jul 2015 01:12:54 +0300 |
SC> 2015-07-01 22:19:10 +0300, Ilya Basin:
>> Hi list.
>>
>> Want to read whole stdin into variable.
>> Don't want to spawn new processes (cat).
SC> [...]
SC> Note that
SC> $(<file) does spawn a new process, it's just that bash doesn't
SC> execute /bin/cat in that process, it does the reading (from
SC> file) and writing (to the pipe) by itself (and the parent reads
SC> from the other end of the pipe to make-up the substitution).
Very informative, thanks.
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