Flat symbol latex11/5/2023 ![]() This usage has led to the character itself being called "pipe". The same "pipe" feature is also found in later versions of DOS and Microsoft Windows. Where the output from the grep process (all lines containing 'blair') is piped to the more process (which allows a command line user to read through results one page at a time). In most Unix shells (command interpreters), this is represented by the vertical bar character. ![]() In this way, a series of commands can be "piped" together, giving users the ability to quickly perform complex multi-stage processing from the command line or as part of a Unix shell script ("bash file"). Ī pipe is an inter-process communication mechanism originating in Unix, which directs the output (standard out and, optionally, standard error) of one process to the input (standard in) of another.
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