Translations:Typographical Guidelines/46/en
In some situations the pipe symbol can't be used - for instance when adding parameters into a template. In any such case, please use {{!}} which will display as a pipe symbol. For example, if you want to display a command line containing the pipe character using the {{Input|...}} template, the simplest way to do it is this: {{Input|1=cmd1 {{!}} cmd2}}
which displays
cmd1 | cmd2