Vertical bar
lastmod 2026-11-10created 2015-12-282 edits
Vertical bar (vertical line, vertical stroke) is the | character, also called the pipe character because of the pipe feature of Unix shells. In the shell it passes the output of one command to the input of the next; in many programming languages it is used for the bitwise OR (|) and logical OR (||) operators, and in regular expressions as the alternation symbol. In mathematics it is used for absolute value and set-builder conditions, and in Markdown and wiki syntax as the column separator in tables. Its ASCII code is 124.
The vertical bar is a straight-line symbol (|), also called the pipe (Unix) character.