![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to sam.9 CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [Research Unix] / researchv10dc / man / adm / man9|
Return to sam.9 CVS log | Up to [Research Unix] / researchv10dc / man / adm / man9 |
1.1 ! root 1: .ds a \fR*\ \fP ! 2: .TH SAM 9.1 ! 3: .CT 1 editor ! 4: .SH NAME ! 5: sam \- screen editor with structural regular expressions ! 6: .SH SYNOPSIS ! 7: .B sam ! 8: [ ! 9: .I option ... ! 10: ] [ ! 11: .I files ! 12: ] ! 13: .PP ! 14: .I sam ! 15: .B -r ! 16: .I machine ! 17: .PP ! 18: .B sam.save ! 19: .SH DESCRIPTION ! 20: .I Sam ! 21: is a multi-file editor. ! 22: It modifies a local copy of a Unix file. ! 23: The copy is here called a ! 24: .IR file ; ! 25: a Unix file is distinguished by the trademarked ! 26: adjective. ! 27: The files are listed in a menu available through mouse button 3 ! 28: or the ! 29: .B n ! 30: command. ! 31: Each file has an associated name, usually the name of the ! 32: Unix file from which it was read, and a `modified' bit that indicates whether ! 33: the editor's file agrees with the Unix file. ! 34: The Unix file is not read into ! 35: the editor's file until it first becomes the current file\(emthat to ! 36: which editing commands apply\(emwhereupon its menu entry is printed. ! 37: The options are ! 38: .TP ! 39: .B -d ! 40: Do not download the terminal part of ! 41: .I sam. ! 42: Editing will be done with the command language only, as in ! 43: .IR ed (1). ! 44: .TP ! 45: .BI -r " machine ! 46: Run the host part remotely ! 47: on the specified machine, the terminal part locally. ! 48: This extends graphic editing to files on machines that ! 49: don't ordinarily support it or across ! 50: .RI non- nfs (8) ! 51: connections. ! 52: .SS Regular expressions ! 53: Regular expressions are as in ! 54: .IR egrep ! 55: (see ! 56: .IR gre (1)), ! 57: with the addition of ! 58: .B @ ! 59: and ! 60: .BR \en . ! 61: A regular expression may never contain a literal newline character. ! 62: The elements of regular expressions are: ! 63: .TP ! 64: .B . ! 65: Match any character except newline. ! 66: .TP ! 67: .B \en ! 68: Match newline. ! 69: .TP ! 70: .B \ex ! 71: For any character except ! 72: .B n ! 73: match the character (here ! 74: .BR x ). ! 75: .TP ! 76: .B @ ! 77: Match any character. ! 78: .TP ! 79: .B [abc] ! 80: Match any character in the square brackets. ! 81: .B \en ! 82: may be mentioned. ! 83: .TP ! 84: .B [^abc] ! 85: Match any character not in the square brackets, but never a newline. ! 86: Both these forms accept a range of ! 87: .SM ASCII ! 88: characters indicated by ! 89: a dash, as in ! 90: .BR a-z . ! 91: .TP ! 92: .B ^ ! 93: Match the null string immediately after a newline. ! 94: .TP ! 95: .B $ ! 96: Match the null string immediately before a newline. ! 97: .PP ! 98: Any other character except newline matches itself. ! 99: .PP ! 100: In the following, ! 101: .I r1 ! 102: and ! 103: .I r2 ! 104: are regular expressions. ! 105: .TP ! 106: .BI ( r1 ) ! 107: Match what ! 108: .I r1 ! 109: matches. ! 110: .TP ! 111: .IB r1 | r2 ! 112: Match what ! 113: .I r1 ! 114: or what ! 115: .IR r2 ! 116: matches. ! 117: .TP ! 118: .IB r1 * ! 119: Match zero or more adjacent matches ! 120: of ! 121: .IR r1 . ! 122: .TP ! 123: .IB r1 + ! 124: Match one or more adjacent matches of ! 125: .IR r1 . ! 126: .TP ! 127: .IB r1 ? ! 128: Match zero or one matches of ! 129: .IR r1 . ! 130: .PP ! 131: The operators ! 132: .BR * , ! 133: .B + ! 134: and ! 135: .B ? ! 136: are highest precedence, then catenation, then ! 137: .B | ! 138: is lowest. ! 139: The empty ! 140: regular expression stands for the last complete expression encountered. ! 141: A regular expression in ! 142: .I sam ! 143: matches the longest leftmost substring formally ! 144: matched by the expression. ! 145: Searching in the reverse direction is equivalent ! 146: to searching backwards with the catenation operations reversed in ! 147: the expression. ! 148: .SS Addresses ! 149: An address identifies a substring in a file. ! 150: In the following, `character ! 151: .IR n ' ! 152: means the null string ! 153: after the ! 154: .IR n -th ! 155: character in the file, with 1 the ! 156: first character in the file. ! 157: `Line ! 158: .IR n ' ! 159: means the ! 160: .IR n -th ! 161: match, ! 162: starting at the beginning of the file, of the regular expression ! 163: .L .*\en? . ! 164: (The peculiar properties of a last line without a newline are ! 165: temporarily undefined.) ! 166: All files always have a current substring, called dot, ! 167: that is the default address. ! 168: .SS Simple Addresses ! 169: .TP ! 170: .BI # n ! 171: The empty string after character ! 172: .IR n ; ! 173: .B #0 ! 174: is the beginning of the file. ! 175: .TP ! 176: .I n ! 177: Line ! 178: .IR n . ! 179: .TP ! 180: .BI / regexp / ! 181: .PD0 ! 182: .TP ! 183: .BI ? regexp ? ! 184: The substring that matches the regular expression, ! 185: found by looking toward the end ! 186: .RB ( / ) ! 187: or beginning ! 188: .RB ( ? ) ! 189: of the file, ! 190: and if necessary continuing the search from the other end to the ! 191: starting point of the search. ! 192: The matched substring may straddle ! 193: the starting point. ! 194: .PD ! 195: .TP ! 196: .B 0 ! 197: The string before the first full line. ! 198: This is not necessarily ! 199: the null string; see ! 200: .B + ! 201: and ! 202: .B - ! 203: below. ! 204: .TP ! 205: .B $ ! 206: The null string at the end of the file. ! 207: .TP ! 208: .B . ! 209: Dot. ! 210: .TP ! 211: .B \&' ! 212: The mark in the file (see the ! 213: .B k ! 214: command below). ! 215: .TP ! 216: \f(CW"\f2regexp\f(CW"\f1\f1 ! 217: Preceding a simple address (default ! 218: .BR . ), ! 219: refers to the address evaluated in the unique file whose menu line ! 220: matches the regular expression. ! 221: .SS Compound Addresses ! 222: In the following, ! 223: .I a1 ! 224: and ! 225: .I a2 ! 226: are addresses. ! 227: .TP ! 228: .IB a1 + a2 ! 229: The address ! 230: .I a2 ! 231: evaluated starting at the end of ! 232: .IR a1 . ! 233: .TP ! 234: .IB a1 - a2 ! 235: The address ! 236: .I a2 ! 237: evaluated looking in the reverse direction ! 238: starting at the beginning of ! 239: .IR a1 . ! 240: .TP ! 241: .IB a1 , a2 ! 242: The substring from the beginning of ! 243: .I a1 ! 244: to the end of ! 245: .IR a2 . ! 246: If ! 247: .I a1 ! 248: is missing, ! 249: .B 0 ! 250: is substituted ! 251: If ! 252: .I a2 ! 253: is missing, ! 254: .B $ ! 255: is substituted. ! 256: .TP ! 257: .IB a1 ; a2 ! 258: Like ! 259: .IB a1 , a2, ! 260: but with ! 261: .I a2 ! 262: evaluated at the end of, and dot set to, ! 263: .IR a1 . ! 264: .PP ! 265: The operators ! 266: .B + ! 267: and ! 268: .B - ! 269: are high precedence, while ! 270: .B , ! 271: and ! 272: .B ; ! 273: are low precedence. ! 274: .PP ! 275: In both ! 276: .B + ! 277: and ! 278: .B - ! 279: forms, if ! 280: .I a2 ! 281: is a line or character address with a missing ! 282: number, the number defaults to 1. ! 283: If ! 284: .I a1 ! 285: is missing, ! 286: .L . ! 287: is substituted. ! 288: If both ! 289: .I a1 ! 290: and ! 291: .I a2 ! 292: are present and distinguishable, ! 293: .B + ! 294: may be elided. ! 295: .I a2 ! 296: may be a regular ! 297: expression; if it is delimited by ! 298: .LR ? 's, ! 299: the effect of the ! 300: .B + ! 301: or ! 302: .B - ! 303: is reversed. ! 304: .PP ! 305: It is an error for a compound address to represent a malformed substring. ! 306: Some useful idioms: ! 307: .IB a1 +- ! 308: .RI ( a1 \&\f5-+\fP ) ! 309: selects the line containing ! 310: the end (beginning) of a1. ! 311: .BI 0/ regexp / ! 312: locates the first match of the expression in the file. ! 313: (The form ! 314: .B 0;// ! 315: sets dot unnecessarily.) ! 316: .BI ./ regexp /// ! 317: finds the second following occurrence of the expression, ! 318: and ! 319: .BI .,/ regexp / ! 320: extends dot. ! 321: .SS Commands ! 322: In the following, text demarcated by slashes represents text delimited ! 323: by any printable ! 324: .SM ASCII ! 325: character except alphanumerics. ! 326: Any number of ! 327: trailing delimiters may be elided, with multiple elisions then representing ! 328: null strings, but the first delimiter must always ! 329: be present. ! 330: In any delimited text, ! 331: newline may not appear literally; ! 332: .B \en ! 333: may be typed for newline; and ! 334: .B \e/ ! 335: quotes the delimiter, here ! 336: .LR / . ! 337: Backslash is otherwise interpreted literally, except in ! 338: .B s ! 339: commands. ! 340: .PP ! 341: Most commands may be prefixed by an address to indicate their range ! 342: of operation. ! 343: Those that may not are marked with a ! 344: .L * ! 345: below. ! 346: If a command takes ! 347: an address and none is supplied, dot is used. ! 348: The sole exception is ! 349: the ! 350: .B w ! 351: command, which defaults to ! 352: .BR 0,$ . ! 353: In the description, `range' is used ! 354: to represent whatever address is supplied. ! 355: Many commands set the ! 356: value of dot as a side effect. ! 357: If so, it is always set to the `result' ! 358: of the change: the empty string for a deletion, the new text for an ! 359: insertion, etc. (but see the ! 360: .B s ! 361: and ! 362: .B e ! 363: commands). ! 364: .br ! 365: .ne 1.2i ! 366: .SS Text commands ! 367: .PD0 ! 368: .TP ! 369: .BI a/ text / ! 370: .TP ! 371: or ! 372: .TP ! 373: .B a ! 374: .TP ! 375: .I lines of text ! 376: .TP ! 377: .B . ! 378: Insert the text into the file after the range. ! 379: Set dot. ! 380: .TP ! 381: .B c\fP ! 382: .br ! 383: .ns ! 384: .TP ! 385: .B i\fP ! 386: Same as ! 387: .BR a , ! 388: but ! 389: .B c ! 390: replaces the text, while ! 391: .B i ! 392: inserts ! 393: .I before ! 394: the range. ! 395: .TP ! 396: .B d ! 397: Delete the text in the range. ! 398: Set dot. ! 399: .TP ! 400: .BI s/ regexp / text / ! 401: Substitute ! 402: .I text ! 403: for the first match to the regular expression in the range. ! 404: Set dot to the modified range. ! 405: In ! 406: .I text ! 407: the character ! 408: .B & ! 409: stands for the string ! 410: that matched the expression. ! 411: Backslash behaves as usual unless followed by ! 412: a digit: ! 413: .BI \e d ! 414: stands for the string that matched the ! 415: subexpression begun by the ! 416: .IR d -th ! 417: left parenthesis. ! 418: If ! 419: .I s ! 420: is followed immediately by a ! 421: number ! 422: .IR n , ! 423: as in ! 424: .BR s2/x/y/ , ! 425: the ! 426: .IR n -th ! 427: match in the range is substituted. ! 428: If the ! 429: command is followed by a ! 430: .BR g , ! 431: as in ! 432: .BR s/x/y/g , ! 433: all matches in the range ! 434: are substituted. ! 435: .TP ! 436: .BI m " a1 ! 437: .br ! 438: .ns ! 439: .TP ! 440: .BI t " a1 ! 441: Move the range to after ! 442: .I a1 ! 443: .RB ( m ), ! 444: or copy it ! 445: .RB ( t ). ! 446: Set dot. ! 447: .SS Display commands ! 448: .TP ! 449: .B p ! 450: Print the text in the range. ! 451: Set dot. ! 452: .TP ! 453: .B = ! 454: Print the line address and character address of the range. ! 455: .TP ! 456: .B =# ! 457: Print just the character address of the range. ! 458: .SS File commands ! 459: .TP ! 460: .BI \*ab " file-list ! 461: Set the current file to the first file named in the list ! 462: that ! 463: .I sam ! 464: also has in its menu. ! 465: The list may be expressed ! 466: .BI < Unix-command ! 467: in which case the file names are taken as words (in the shell sense) ! 468: generated by the Unix command. ! 469: .TP ! 470: .BI \*aB " file-list ! 471: Same as ! 472: .BR b , ! 473: except that file names not in the menu are entered there, ! 474: and all file names in the list are examined. ! 475: .TP ! 476: .B \*an ! 477: Print a menu of files. ! 478: The format is: ! 479: .RS ! 480: .TP \w'\ \ or\ blank\ \'u ! 481: .BR ' " or blank ! 482: indicating the file is modified or clean, ! 483: .TP ! 484: .BR - " or \&" + ! 485: indicating the the file is unread or has been read ! 486: (in the terminal, ! 487: .B * ! 488: means more than one window is open), ! 489: .TP ! 490: .BR . " or blank ! 491: indicating the current file, ! 492: .TP ! 493: a blank, ! 494: .TP ! 495: and the file name. ! 496: .RE ! 497: .TP 0 ! 498: .BI \*aD " file-list ! 499: Delete the named files from the menu. ! 500: If no files are named, the current file is deleted. ! 501: It is an error to ! 502: .B D ! 503: a modified file, but a subsequent ! 504: .B D ! 505: will delete such a file. ! 506: .SS I/O Commands ! 507: .TP ! 508: .BI \*ae " filename ! 509: Replace the file by the contents of the named Unix file. ! 510: Set dot to the beginning of the file. ! 511: .TP ! 512: .BI r " filename ! 513: Replace the text in the range by the contents of the named Unix file. ! 514: Set dot. ! 515: .TP ! 516: .BI w " filename ! 517: Write the range (default ! 518: .BR 0,$ ) ! 519: to the named Unix file. ! 520: .TP ! 521: .BI \*af " filename ! 522: Set the file name and print the resulting menu entry. ! 523: .PP ! 524: If the file name is absent from any of these, the current file name is used. ! 525: .B e ! 526: always sets the file name, ! 527: .B r ! 528: and ! 529: .B w ! 530: do so if the file has no name. ! 531: .TP ! 532: .BI < " Unix-command ! 533: Replace the range by the standard output of the ! 534: Unix command. ! 535: .TP ! 536: .BI > " Unix-command ! 537: Sends the range to the standard input of the ! 538: Unix command. ! 539: .TP ! 540: .BI | " Unix-command ! 541: Send the range to the standard input, and replace it by ! 542: the standard output, of the ! 543: Unix command. ! 544: .TP ! 545: .BI \*a! " Unix-command ! 546: Run the ! 547: Unix command. ! 548: .TP ! 549: .BI \*acd " directory ! 550: Change working directory. ! 551: If no directory is specified, ! 552: .B $HOME ! 553: is used. ! 554: .PP ! 555: In any of ! 556: .BR < , ! 557: .BR > , ! 558: .B | ! 559: or ! 560: .BR ! , ! 561: if the ! 562: .I Unix command ! 563: is omitted the last ! 564: .I Unix command ! 565: (of any type) is substituted. ! 566: If ! 567: .I sam ! 568: is downloaded, ! 569: .B ! ! 570: sets standard input to ! 571: .FR /dev/null , ! 572: and otherwise ! 573: unassigned output ! 574: .RB ( stdout ! 575: for ! 576: .B ! ! 577: and ! 578: .BR > , ! 579: .B stderr ! 580: for all) is placed in ! 581: .F $HOME/sam.err ! 582: and the first few lines are printed. ! 583: .SS Loops and Conditionals ! 584: .TP ! 585: .BI x/ regexp / " command ! 586: For each match of the regular expression in the range, run the command ! 587: with dot set to the match. ! 588: Set dot to the last match. ! 589: If the regular ! 590: expression and its slashes are omitted, ! 591: .L /.*\en/ ! 592: is assumed. ! 593: Null string matches potentially occur before every character ! 594: of the range and at the end of the range. ! 595: .TP ! 596: .BI y/ regexp / " command ! 597: Like ! 598: .B x, ! 599: but run the command for each substring that lies before, between, ! 600: or after ! 601: the matches that would be generated by ! 602: .BR x . ! 603: There is no default behavior. ! 604: Null substrings potentially occur before every character ! 605: in the range. ! 606: .TP ! 607: .BI \*aX/ regexp / " command ! 608: For each file whose menu entry matches the regular expression, ! 609: run the command. ! 610: If the expression is omitted, the command is run ! 611: in every file. ! 612: .TP ! 613: .BI \*aY/ regexp / " command ! 614: Same as ! 615: .BR X , ! 616: but for files that do not match the regular expression, ! 617: and the expression is required. ! 618: .TP ! 619: .BI g/ regexp / " command ! 620: .br ! 621: .ns ! 622: .TP ! 623: .BI v/ regexp / " command ! 624: If the range contains ! 625: .RB ( g ) ! 626: or does not contain ! 627: .RB ( v ) ! 628: a match for the expression, ! 629: set dot to the range and run the command. ! 630: .PP ! 631: These may be nested arbitrarily deeply, but only one instance of either ! 632: .B X ! 633: or ! 634: .B Y ! 635: may appear in a \%single command. ! 636: An empty command in an ! 637: .B x ! 638: or ! 639: .B y ! 640: defaults to ! 641: .BR p ; ! 642: an empty command in ! 643: .B X ! 644: or ! 645: .B Y ! 646: defaults to ! 647: .BR f . ! 648: .B g ! 649: and ! 650: .B v ! 651: do not have defaults. ! 652: .SS Miscellany ! 653: .TP ! 654: .B k ! 655: Set the current file's mark to the range. Does not set dot. ! 656: .TP ! 657: .B \*aq ! 658: Quit. ! 659: It is an error to quit with modified files, but a second ! 660: .B q ! 661: will succeed. ! 662: .TP ! 663: .BI \*au " n ! 664: Undo the last ! 665: .I n ! 666: (default 1) ! 667: top-level commands that changed the contents or name of the ! 668: current file, and any other file whose most recent change was simultaneous ! 669: with the current file's change. ! 670: Successive ! 671: .BR u 's ! 672: move further back in time. ! 673: The only commands for which u is ineffective are ! 674: .BR cd , ! 675: .BR u , ! 676: .BR q , ! 677: .B w ! 678: and ! 679: .BR D . ! 680: .TP ! 681: (empty) ! 682: If the range is explicit, set dot to the range. ! 683: If ! 684: .I sam ! 685: is downloaded, the resulting dot is selected on the screen; ! 686: otherwise it is printed. ! 687: If no address is specified (the ! 688: command is a newline) dot is extended in either direction to ! 689: line boundaries and printed. ! 690: If dot is thereby unchanged, it is set to ! 691: .B .+1 ! 692: and printed. ! 693: .PD ! 694: .SS Grouping and multiple changes ! 695: Commands may be grouped by enclosing them in braces ! 696: .BR {} . ! 697: Commands within the braces must appear on separate lines (no backslashes are ! 698: required between commands). ! 699: Semantically, an opening brace is like a command: ! 700: it takes an (optional) address and sets dot for each sub-command. ! 701: Commands within the braces are executed sequentially, but changes made ! 702: by one command are not visible to other commands (see the next section ! 703: of this manual). ! 704: Braces may be nested arbitrarily. ! 705: .PP ! 706: When a command makes a number of changes to a file, as in ! 707: .BR x/re/c/text/ , ! 708: the addresses of all changes to the file are computed in the original file. ! 709: If the changes are in sequence, ! 710: they are applied to the file. ! 711: Successive insertions at the same address are catenated into a single ! 712: insertion composed of the several insertions in the order applied. ! 713: .SS The terminal ! 714: What follows refers to behavior of ! 715: .I sam ! 716: when downloaded, that is, when ! 717: operating as a display editor on a bitmap display. ! 718: This is the default ! 719: behavior; invoking ! 720: .I sam ! 721: with the ! 722: .B -d ! 723: (no download) option provides access ! 724: to the command language only. ! 725: .PP ! 726: Each file may have zero or more windows open. ! 727: Each window is equivalent ! 728: and is updated simultaneously with changes in other windows on the same file. ! 729: Each window has an independent value of dot, indicated by a highlighted ! 730: substring on the display. ! 731: Dot may be in a region not within ! 732: the window. ! 733: There is usually a `current window', ! 734: marked with a dark border, to which typed text and editing ! 735: commands apply. ! 736: Text may be typed and edited as in ! 737: .IR mux (9.1); ! 738: also the escape key (ESC) selects (sets dot to) text typed ! 739: since the last mouse button hit. ! 740: .PP ! 741: The button 3 menu controls window operations. ! 742: The top of the menu ! 743: provides the following operators, each of which prompts with one or ! 744: more ! 745: .IR mux -like ! 746: cursors to prompt for selection of a window or sweeping ! 747: of a rectangle. ! 748: `Sweeping' a null rectangle gets a large window, disjoint ! 749: from the command window or the whole screen, depending on ! 750: where the null rectangle is. ! 751: .TF reshape ! 752: .TP ! 753: .B new ! 754: Create a new, empty file. ! 755: .TP ! 756: .B xerox ! 757: Create a copy of an existing window. ! 758: .TP ! 759: .B reshape ! 760: As in ! 761: .I mux. ! 762: .TP ! 763: .B close ! 764: Delete the window. ! 765: In the last window of a file, ! 766: .B close ! 767: is equivalent to a ! 768: .B D ! 769: for the file. ! 770: .TP ! 771: .B write ! 772: Equivalent to a ! 773: .B w ! 774: for the file. ! 775: .PD ! 776: .PP ! 777: Below these operators is a list of available files, starting with ! 778: .BR ~~sam~~ , ! 779: the command window. ! 780: Selecting a file from the list makes the most recently ! 781: used window on that file current, unless it is already current, in which ! 782: case selections cycle through the open windows. ! 783: If no windows are open ! 784: on the file, the user is prompted to open one. ! 785: Files other than ! 786: .B ~~sam~~ ! 787: are marked with one of the characters ! 788: .B -+* ! 789: according as zero, one, or more windows ! 790: are open on the file. ! 791: A further mark ! 792: .L . ! 793: appears on the file in the current window and ! 794: a single quote, ! 795: .BR ' , ! 796: on a file modified since last write. ! 797: .PP ! 798: Nothing can be done without a command window, for which ! 799: .I sam ! 800: prompts initially. ! 801: The command window is an ordinary window except that text typed to it ! 802: is interpreted as commands for the editor rather than passive text, ! 803: and text printed by editor commands appears in it. ! 804: The behavior is like ! 805: .I mux, ! 806: with a `command point' that separates commands being typed from ! 807: previous output. ! 808: Commands typed in the command window apply to the ! 809: current open file\(emthe file in the most recently ! 810: current window. ! 811: .SS Manipulating text ! 812: Button 1 changes selection, much like ! 813: .I mux. ! 814: Pointing to a non-current window with button 1 makes it current; ! 815: within the current window, button 1 selects text, thus setting dot. ! 816: Double-clicking selects text to the boundaries of words, lines, ! 817: quoted strings or bracketed strings, depending on the text at the click. ! 818: .PP ! 819: Button 2 provides a menu of editing commands: ! 820: .PD0 ! 821: .TP ! 822: .B cut ! 823: Delete dot and save the deleted text in the snarf buffer. ! 824: .TP ! 825: .B paste ! 826: Replace the text in dot by the contents of the snarf buffer. ! 827: .TP ! 828: .B snarf ! 829: Save the text in dot in the snarf buffer. ! 830: .TP ! 831: .B look ! 832: Search forward for the next occurrence of the literal text in dot. ! 833: If dot is the null string, the text in the snarf buffer is ! 834: used. ! 835: The snarf buffer is unaffected. ! 836: .TP ! 837: .B <mux> ! 838: Exchange snarf buffers with ! 839: .IR mux. ! 840: .TP ! 841: .BI / regexp ! 842: Search forward for the next match of the last regular expression ! 843: typed in a command. ! 844: (Not in command window.) ! 845: .TP ! 846: .B send ! 847: Send the text in dot, or the snarf buffer if ! 848: dot is the null string, as if it were typed to the command window. ! 849: Saves the sent text in the snarf buffer. ! 850: (Command window only.) ! 851: .TP ! 852: .B scroll ! 853: .TP ! 854: .B noscroll ! 855: Select whether to reveal automatically text ! 856: that appears off the end of the command window. ! 857: (Command window only.) ! 858: .PD ! 859: .SS Abnormal termination ! 860: If ! 861: .I sam ! 862: terminates other than by a ! 863: .B q ! 864: command (by hangup, deleting its layer, etc.), modified ! 865: files are saved in an ! 866: executable file, ! 867: .FR $HOME/sam.save . ! 868: This program, when executed, asks whether to write ! 869: each file back to a Unix file. ! 870: The answer ! 871: .L y ! 872: causes writing; anything else skips the file. ! 873: .SH FILES ! 874: .F $HOME/sam.save ! 875: .br ! 876: .F $HOME/sam.err ! 877: .SH SEE ALSO ! 878: .IR ed (1), ! 879: .IR sed (1), ! 880: .IR vi (1), ! 881: .IR gre (1) ! 882: .SH BUGS ! 883: The ! 884: .B u ! 885: command undoes characters\(emand backspaces\(emtyped directly ! 886: into a file window in unpredictable increments.
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.