$ cat test
a c
b c
d a
c b
c a
$ tsort test 1> /dev/null
tsort: test: input contains a loop:
tsort: a
tsort: c
tsort: test: input contains a loop:
tsort: b
tsort: c
Replies to tsort stderr 
| Title |
Name |
Language |
UNIX |
When |
| Re: tsort stderr |
dagbrown |
text |
1462444291 |
7 Years ago. |
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