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{{AfDM|page=Control-\ (2nd nomination)|year=2023|month=October|day=11|substed=yes|origtag=afdx|help=off}}
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In [[computing]], '''control-\''' is a [[control character]] in [[ASCII code]], also known as the '''file separator''' or '''field separator''' ('''[[field separator|FS]]''') character. It is generated by pressing the {{keypress|'''[[backslash|\]]'''}} key while holding down the {{keypress|[[control key|Ctrl]]}} key on a [[computer keyboard]].
Under most [[UNIX]]-based operating systems control-\ is used to terminate a running [[process (computing)|process]] from a [[shell (computing)|command shell]] and have it produce a [[core dump|memory core dump]] by sending it a [[SIGQUIT]] [[signal (computing)|signal]].<ref>{{citation|title=Advanced Programming in the UNIX Environment|series=Addison-Wesley professional computing series|first1=W. Richard|last1=Stevens|first2=Stephen A.|last2=Rago|publisher=Pearson Education|year=2013|isbn=9780321637734|page=300|url=https://books.google.com/books?id=_kpsAQAAQBAJ&pg=PA300}}</ref>
As a character that can be easily typed on most keyboards, but with no standardized meaning, control-\ is often used as a [[keyboard shortcut]] in different [[graphical user interface]]s, with various unrelated effects. For instance, some versions of [[Windows File Manager]] use it to de-select all selected files.<ref>{{citation|url=https://books.google.com/books?id=jFEEAAAAMBAJ&pg=PA22|title=More on file managing, networking, and mouse customization|magazine=InfoWorld|first=Brian|last=Livingston|department=Window Manager|page=22|date=October 19, 1992}}</ref> In [[Adobe InDesign]], it has been used to mark a point in a line of text as the starting position of a [[hanging indent]].<ref>{{citation|title=InDesign CS4 for Macintosh and Windows: Visual QuickStart Guide|first=Sandee|last=Cohen|publisher=Peachpit Press|year=2008|isbn=9780321648853|page=161|url=https://books.google.com/books?id=gM6_LopFqaQC&pg=PT161}}</ref>
==References==
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