|
Page 9 OPTIONS
Options may be in any order, and may be before, after, or between filenames. The order of filenames is significant. The double hyphens command (—) by itself names the standard input file explicitly, as one of the files for as to assemble. Except for __, any command line argument that begins with a hyphen (_) is an option. Each option changes the behavior of as. No option changes the way another option works. An option is a hyphen followed by one or more letters; the case of the letter is important. All options are optional. The _o option expects exactly one filename to follow. The filename may either immediately follow the option's letter (compatible with older assemblers) or it may be the next command argument (GNU standard). These two command lines are equivalent: as _o my_object_file.o mumble.s as _omy_object_file.o mumble.s SEE ALSO as entry in info; Using as: The GNU Assembler; gcc(1), ld(1). COPYING Copyright " 1991, 1992 Free Software Foundation, Inc. Permission is granted to make and distribute verbatim copies of this manual provided the copyright notice and this permission notice are preserved on all copies. Permission is granted to copy and distribute modified versions of this manual under the conditions for verbatim copying, provided that the entire resulting derived work is distributed under the terms of a permission notice identical to this one. Permission is granted to copy and distribute translations of this manual into another language, under the above conditions for modified versions, except that this permission notice may be included in translations approved by the Free Software Foundation instead of in the original English. Cygnus Support, 21 January 1992 Page 10 asciitopgmasciitopgm—Convert ASCII graphics into a portable graymap SYNOPSIS asciitopgm [-d divisor] height width [asciifile] DESCRIPTION Reads ASCII data as input. Produces a portable graymap with pixel values that are an approximation of the brightness of the ASCII characters, assuming black-on-white printing. In other words, a capital M is very dark, a period is very light, and a space is white. Input lines that are fewer than width characters are automatically padded with spaces. The divisor argument is a floating-point number by which the output pixels are divided; the default value is 1.0. This can be used to adjust the brightness of the graymap; for example, if the image is too dim, reduce the divisor. In keeping with (I believe) FORTRAN line-printer conventions, input lines beginning with a + (plus) character are assumed to overstrike the previous line, allowing a larger range of gray values. This tool contradicts the message in the pbmtoascii manual: "Note that there is no asciitopbm tool—this transformation is one-way." BUGS The table of ASCII-to-gray values is subject to interpretation, and, of course, depends on the typeface intended for the input. SEE ALSO pbmtoascii(1), pgm(5) AUTHOR Wilson H. Bent, Jr. (whb@usc.edu) 26 December 1994 atktopbmatktopbm—Convert Andrew Toolkit raster object to portable bitmap SYNOPSIS atktopbm [atkfile] DESCRIPTION atktopbm reads an Andrew Toolkit raster object as input and produces a portable bitmap as output. SEE ALSO pbmtoatk(1), pbm(5) AUTHOR Copyright " 1991 by Bill Janssen 26 September 1991 Page 11 bashbash—GNU Bourne_again shell SYNOPSIS bash [options] [file] DESCRIPTION bash is an sh_compatible command language interpreter that executes commands read from the standard input or from a file. bash also incorporates useful features from the Korn and C shells (ksh and csh). bash is ultimately intended to be a conformant implementation of the IEEE POSIX Shell and Tools specification (IEEE Working Group 10032). OPTIONS In addition to the single_character shell options documented in the description of the set built-in command, bash interprets the following flags when it is invoked:
bash also interprets a number of multicharacter options. To be recognized, these options must appear on the command line before the single_character options.
ARGUMENTS If arguments remain after option processing, and neither the _c nor the _s option has been supplied, the first argument is assumed to be the name of a file containing shell commands. If bash is invoked in this fashion, is set to the name of the file, and the positional parameters are set to the remaining arguments. bash reads and executes commands from this file, then exits. bash's exit status is the exit status of the last command executed in the script. |
