>
, which directs an output into a file, there is also >>
, which appends the file, or, in other words, adds stuff to the end of the file.wc
is used to count characters, words and lines. wc -l
counts lines only.uniq
eliminates repeated lines (outputs the file with adjacent identical lines collapsed to one). It only works when repeated lines come together in a single continuous block. Example: sort file.txt | uniq
>
to redirect an output into a file (e.g. ls /var/logs > logs.txt
)<
to redirect a file (e.g. sort < names.txt
)|
to connect two commands with a pipe (e.g. ls | grep
)The Hexlet support team or other students will answer you.
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