File: line

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util-linux 2.36.1-8%2Bdeb11u2
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file content (25 lines) | stat: -rw-r--r-- 455 bytes parent folder | download | duplicates (2) 
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# usually behave like "head -n 1"
a
ret: 0
# never consume more than one line
1
2
ret: 0
# add a newline
abc
ret: 1
# print one newline on empty input

ret: 1
# add a newline, return 1 when EOF
xyz
ret: 1
# print one newline on empty input, return 1 when EOF

ret: 1
# large line of zero bytes
00000000  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
00100000  0a                                                |.|
00100001
ret: 0