| Name | Description |
|---|---|
| op | Text formatting |
| op.* | Designates comment or remark. |
| op.appendix | Assigns appendix titles and creates entries in Table of Contents. |
| op.apx | see "appendix". |
| op.bc | See "block center". |
| op.begin.page | Processes current page and forces a page break. |
| op.bf | See "boldface". |
| op.bk | See "break". |
| op.block.center | Centers all following attributes. |
| op.boldface | Selects boldface font. |
| op.box | Draws a box a specified column positions. |
| op.bp | See "begin page". |
| op.break | Creates a new paragraph. |
| op.c | see "center". |
| op.cap.sentences | Capitalized first letter of each sentence. |
| op.center | Centers the next line. |
| op.ch | see "chapter". |
| op.chain | Exits current item and begins processing specified item. |
| op.chapter | Sets chapter formatting and provides automatic chapter numbering. |
| op.char | Outputs character string without translation. |
| op.col | Formats text in colums. |
| op.columns | see "columns set". |
| op.columns.set | Specifies column heading, width and spacing. |
| op.commands | Summary of OP commands. |
| op.crt | Directs output to terminal. |
| op.cs | see "cap sentences". |
| op.cursor | Provides cursor addressing. |
| op.date | Outputs current system date. |
| op.default | Sets default font. |
| op.df | see "default". |
| op.em | Insert spaces in output text. |
| op.f | see "font". |
| op.fig | see "figure". |
| op.figure | Sequentially numbers figures using current chapter. |
| op.font | Selects font from device item. |
| op.footing | Defines page footing. |
| op.ft | |
| op.ght | |
| op.gohanging.tab | Indents text to position set by ".hanging tab". |
| op.hanging.tab | Sets tab stop. |
| op.heading | Defines page heading. |
| op.hi | see "hilite". |
| op.hilite | Prints single character on right margin. |
| op.ht | see "hanging tab". |
| op.i | see "indent". |
| op.im | see "indent margin". |
| op.in | see "input". |
| op.indent | Indents text from left margin. |
| op.indent.margin | Changes left margin +/- positions. |
| op.indent.rmargin | Indents right margin. |
| op.index | Inserts phrase and current page number in text. |
| op.index.heading | Inserts phrase and current page number in index. |
| op.input | Accepts text input from terminal. |
| op.irm | see "indent rmargin". |
| op.it | See "italics". |
| op.italics | Output text in italics. |
| op.ix | see "index". |
| op.ixh | see "index heading". |
| op.j | see "justify". |
| op.justify | Right-justifies text. |
| op.left.margin | Sets left margin. |
| op.line.length | Sets line length. |
| op.line.printer | Directs output to the line printer. |
| op.ll | see "line length". |
| op.lm | see "left margin". |
| op.lp | see "line printer". |
| op.lpi | Set number of lines-per-inch. |
| op.macro.file | Sets the file.reference that contains OP macro items. |
| op.margins | see "left margin" and "right margin". |
| op.mf | see "macro file". |
| op.nf | see "nofill". |
| op.nofill | Disables line fill and justification. |
| op.oc | see "over char". |
| op.over.char | Treat following character as text. |
| op.p | see "paragraph". |
| op.page.length | Set default page length. |
| op.page.number | Sets default page number |
| op.paging | Pauses at the end of each page. |
| op.paragraph | Indents paragraph. |
| op.pf | see "preface". |
| op.pg | see "paging". |
| op.pi | see "print index". |
| op.pl | see "page length". |
| op.pn | see "page number". |
| op.pp | see "prefix page". |
| op.pptoc | see "print ptoc". |
| op.preface | Sets automatic prefact formatting. |
| op.prefix.page | Turns on prefix page mode. |
| op.print.index | Prints index. |
| op.print.ptoc | Prints partial Table of Contents. |
| op.print.toc | Prints Table of Contents. |
| op.prm | see "prompt". |
| op.prompt | Outputs text on next line to terminal. |
| op.ptoc | Print table of contents, see "print toc". |
| op.r | see "read". |
| op.read | Reads an item and outputs it in current text. |
| op.readnext | Reads data from active list. |
| op.readnext.null | Reads data from active list. |
| op.reset | Resets printer. |
| op.right.margin | Sets right margin. |
| op.rm | OP "right margin" |
| op.rn | see "readnext". |
| op.rst | |
| op.save.contents | Saves Table of Contents. |
| op.save.index | Saves index to specific file. |
| op.sc | OP "save contents". |
| op.sch | see "set chapter". |
| op.sec | Define a section |
| op.section | Increments section level number with text. |
| op.set.chapter | Sets options for chapter headings. |
| op.set.section | Sets options for section headings. |
| op.si | See "save index". |
| op.sk | See "skip". |
| op.skip | Skips lines on output. |
| op.sp | see "space". |
| op.space | Outputs blank lines. |
| op.spacing | Sets line spacing. |
| op.spg | see "spacing". |
| op.ss | OP "set section". |
| op.standard | Defines default parameters for OP. |
| op.std | see "standard". |
| op.sub | see "subscript". |
| op.subscript | Moves text down one-half line. |
| op.sup | see "superscript". |
| op.superscript | Moves text up one-half line. |
| op.tab.fill | Defines pattern to fill line. |
| op.tab.left | Left align the phrase at the next tab position. |
| op.tab.right | Moves phrase to next tab position and right-justifies phrase. |
| op.tab.rightm | Right-aligns text with right margin. |
| op.tab.set | Sets tab stops. |
| op.table | Provides automatic table numbering. |
| op.tbl | see "table". |
| op.tc.heading | Substitutes heading text as header for Table of Contents. |
| op.tch | see "tc heading". |
| op.tcl | Executes a TCL statement from OP. |
| op.tcl.box | Executes TCL.command, surrounded by a box. |
| op.tclbox | see "tcl box". |
| op.test.page | Tests lines on page. |
| op.tf | OP "tab fill". |
| op.tl | see "tab left". |
| op.tp | see "test page". |
| op.tr | see "tab right". |
| op.trm | see "tab rightm". |
| op.ts | See "tab set". |
| op.ul | see "underline". |
| op.underline | Underlines following text. |
| op.underline.words | Underlines the words following the command. |
| op.uw | see "underline words". |
| op.variable.columns | Specifies paraments for variable-width columns. |
| op.vcol | see "variable columns". |
| op.vmi | Sets vertical motion index. |
| op.x | Turns off boldface, underline words, underline and italic modes. |
| op.xbc | see "xblock center". |
| op.xbf | see "xboldface". |
| op.xblock.center | Turns off block center mode. |
| op.xboldface | Turns off boldface mode. |
| op.xbox | Terminates the "box" command. |
| op.xcap.sentences | Terminates ".cap sentences" mode. |
| op.xcol | See "xcolumns". |
| op.xcolumns | Turns off column heading, width and spacing. |
| op.xcs | see "xcap sentences". |
| op.xhi | see "xhilite". |
| op.xhilite | Turns off ".hilite" mode. |
| op.xindex | Ends index. |
| op.xit | see "xitalics". |
| op.xitalics | Turns off italics mode. |
| op.xix | see "xindex". |
| op.xj | see "xjustify". |
| op.xjustify | Turns off justify mode. |
| op.xp | See "xparagraph". |
| op.xpaging | Turns of paging mode. |
| op.xparagraph | Turns off paragraph mode. |
| op.xpf | see "xpreface". |
| op.xpg | see "xpaging". |
| op.xpp | see "xprefix page". |
| op.xpreface | Turns off preface mode. |
| op.xprefix.page | Turns off prefix page mode. |
| op.xsub | see "xsubscript". |
| op.xsubscript | Turns off subscript mode. |
| op.xsup | see "xsuperscript". |
| op.xsuperscript | Turns off superscript mode. |
| op.xul | Turns off underline mode. |
| op.xuw | Turns off underline words mode. |
