I tried command 'sort' in two virtual machines, but one gave all upper-case words before all lower-case words, and another sort in an ignore-case way.
Not ignore case:
[@sjs_100_189 tanglianrui]# sort test.txt
A
T
a
b
t
Ignore case:
[@sjs_88_171 sortedOutput]# sort -f test.txt
a
A
c
t
T
I'd like to know if there is a config file controlling the behavior of sort? If so, which one is it and how to config it? Thank you so much.