uniq

[Giuseppe Ciotta]

~/busybox-1.5.0$ yes | ./busybox uniq -> no output

~$ yes |  uniq
y

- busybox uniq never prints a line since it waits for the next different
line, which will never be read in this case as input lines are all equals.
- gnu uniq prints a line as it reads it, discarding following lines.

Is there a reason for this discrepancy between gnu uniq and busybox one?
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