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based conditional and loop functions and scope addressing, even sharing some of ed's syntax for such functions. But while ed's commands are line-oriented, sam's are selection-oriented. Selections are contiguous strings of text (which may span multiple lines), and are specified either with the mouse
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Samterm presents windows to files being edited and to a persistent command window which accepts input as sam commands. Most common editing operations are quickly and naturally accomplished with the point-and-click interface, which also functions inside the command window. This latter fact allows
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to revert any number of editing errors. This feature, combined with Sam's facility to easily edit its own commands and, fundamentally, its small, orthogonal command set (containing only 33 commands), represent the program's bias toward a low learning threshold over other more expressive "power
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Sam extends its basic text-editing command set to handling of multiple files, providing similar pattern-based conditional and loop commands for filename specification. Any sequence of text-editing commands may be applied as a unit to each such specification.
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482:. Sam's commands take such selections as basic—more or less as other Unix tools treat lines; thus, multi-line and sub-line patterns are as naturally handled by Sam as whole-line patterns are by
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Sam is designed as two synchronous programs: a command interpreter and a mouse-oriented bitmap windowing interface. The interpreter's command set is modeled after the UNIX editor
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and may be used to operate the editor from a standard text terminal. By default, however, Sam presents its own
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aesthetic. It is internally simple, its power leveraged by the composability of a small command language and
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Sam is the preferred text editor of several eminent programmers. It was the first full screen editor
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commands to be edited (and resubmitted) just as any other text, a function inherited from the
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The latest version of sam was written as part of the Plan 9 operating system, but there are
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A Research Unix reader: annotated excerpts from the
Programmer's Manual, 1971–1986
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Sam was one of the first text editors to support "infinite"
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sam(1): screen editor with structural regular expressions
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Sam's command syntax is formally similar to ed's or
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53:Learn how and when to remove these messages
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851:"A tutorial for the sam command language"
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655:(Technical report). CSTR. Bell Labs. 139.
230:Learn how and when to remove this message
212:Learn how and when to remove this message
110:Learn how and when to remove this message
764:. YouTube. Event occurs at 44 seconds.
740:(Interview). Interviewed by Budiu, Mihai
73:This article includes a list of general
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708:"Stiff asks, great programmers answer"
563:and automatic tiling of opened files.
531:liked. Sam is the text editor used by
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150:adding citations to reliable sources
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738:"An Interview with Brian Kernighan"
612:— The original Unix text editor by
555:and Russ Cox, have transitioned to
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706:Rzeszótko, Jarosław (2006-10-16).
478:it over a region of text) or by a
408:and other Unix developers for the
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816:Software: Practice and Experience
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34:This article has multiple issues.
1208:The Unix Programming Environment
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871:ssam(1): stream interface to sam
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668:"Structural Regular Expressions"
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768:from the original on 2021-12-12
137:needs additional citations for
42:or discuss these issues on the
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736:Kernighan, Brian (July 2000).
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500:structural regular expressions
412:windowing terminal running on
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758:Fridman, Lex (19 July 2020).
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1201:The Practice of Programming
714:(Interview). Archived from
694:Interview:Rob Pike Responds
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467:, containing (structural-)
427:through shell integration.
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1266:Inferno (operating system)
895:A sam quick reference card
810:Pike, Rob (October 1987).
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890:Plan 9 from User Space
828:10.1002/spe.4380171105
161:"Sam" text editor
16:Multi-file text editor
1261:Plan 9 from Bell Labs
1126:Programming languages
1112:Plan 9 from Bell Labs
964:Programming languages
950:Plan 9 from Bell Labs
812:"The Text Editor sam"
624:List of Unix commands
619:Plan 9 from Bell Labs
1281:Windows text editors
455:terminal interface.
392:based on structural
146:improve this article
431:Design and features
394:regular expressions
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1276:MacOS text editors
718:on October 5, 2011
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469:regular expression
264:Original author(s)
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1271:Unix text editors
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533:Bjarne Stroustrup
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795:. 17 May 2022.
787:"Deadpixi/Sam"
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157:Find sources:
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135:This article
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1225:Renée French
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1199:
1193:Publications
1173:
1013:Space Travel
1011:
1006:
931:Ken Thompson
854:. Retrieved
839:. Retrieved
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770:. Retrieved
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742:. Retrieved
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720:. Retrieved
716:the original
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678:. Retrieved
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614:Ken Thompson
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529:Ken Thompson
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406:Ken Thompson
385:
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357:GPL-2.0-only
325:Available in
276:Developer(s)
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156:
144:Please help
139:verification
136:
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37:
36:Please help
33:
888:as part of
849:Pike, Rob.
666:Pike, Rob.
390:text editor
339:Text editor
290:early 1980s
92:introducing
1250:Categories
856:2008-11-01
841:2008-11-01
804:References
772:2020-10-03
744:2008-11-01
722:2008-11-01
680:2008-11-01
519:editors."
295:Written in
172:newspapers
75:references
39:improve it
1133:Newsqueak
1035:Bell Labs
523:Endorsers
398:Bell Labs
281:Bell Labs
45:talk page
1157:Software
1098:Rob Pike
985:Software
836:36076160
766:Archived
712:Stifflog
646:(1987).
582:See also
553:Rob Pike
545:Tom Duff
475:sweeping
453:DMD 5620
402:Rob Pike
362:LPL-1.02
269:Rob Pike
1143:Sawzall
1117:Inferno
955:Inferno
445:samterm
418:modular
414:v9 Unix
368:Website
346:License
328:English
186:scholar
88:improve
1040:Google
834:
792:GitHub
375:.cat-v
360:2002:
355:2014:
350:2021:
315:Plan 9
188:
181:
174:
167:
159:
77:, but
1235:UTF-8
1218:Other
1138:Limbo
1056:UTF-8
1049:Other
992:Belle
832:S2CID
671:(PDF)
653:(PDF)
630:Notes
572:macOS
319:Win32
193:JSTOR
179:books
1169:Blit
1164:acme
1002:grep
945:Unix
574:and
557:acme
543:and
516:undo
496:Perl
472:(by
465:ex's
421:Unix
410:Blit
377:.org
334:Type
311:Unix
165:news
1179:rio
1174:sam
1007:sam
824:doi
492:AWK
400:by
386:Sam
373:sam
352:MIT
256:Sam
243:Sam
148:by
1252::
1184:8½
1148:Go
997:ed
976:Go
830:.
820:17
818:.
814:.
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710:.
673:.
570:,
551:,
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488:vi
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