20190418 Process Substitution

[ssdr]

来自Wikipedia：

In computing, process substitution is a form of inter-process communication that allows the input or output of a command to appear as a file. The command is substituted in-line, where a file name would normally occur, by the command shell. This allows programs that normally only accept files to directly read from or write to another program.

语法格式：

<(<some command> <args>)

举例：

diff <(sort list-1.txt) <(sort list-2.txt)

[ssdr]

另一个例子： oss hash --type=md5 <(echo 'hello world')