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z/OS V1R9.0 UNIX System Services Command ... - Christian Grothoff

z/OS V1R9.0 UNIX System Services Command ... - Christian Grothoff

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When it is off, the editor warns you of an error by displaying a message<br />

using a standout mode of your terminal (such as reverse video).<br />

The default is noerrorbells.<br />

exrc When this option is on, ex and vi access any .exrc files in the current<br />

directory during initialization. If it is off, ex and vi ignore such files unless<br />

the current directory is the HOME directory.<br />

home Used as the destination directory by cd. If no path is specified, home<br />

defaults to the contents of the HOME environment variable if it exists, or to<br />

the vi startup directory if it does not.<br />

ignorecase, ic<br />

When this option is on, the case of letters is ignored when matching strings<br />

and regular expressions.<br />

The default is noignorecase.<br />

linedelete<br />

vi sets the line delete character automatically to the current terminal line<br />

delete character, as specified by the user. Within vi, you can set the line<br />

delete character with the linedelete variable. The value you specify is the<br />

numeric value of the line delete character. The default is 0x15, the ASCII<br />

value for Ctrl-U. Another popular value is 0x18 for Ctrl-X.<br />

list When this option is on, tabs are displayed as a caret mark (^) rather than<br />

expanded with blanks, and the ends of lines are indicated with a dollar sign<br />

($).<br />

The default is nolist.<br />

magic When this option is off (nomagic), regular expression characters ^ \ and $<br />

become the only ones with special meanings. All other regular expression<br />

metacharacters must be preceded by a backslash (\) to have their special<br />

meaning.<br />

The default is magic.<br />

maxbuffers<br />

The number of K units (1024 bytes) of memory to be used for the editor<br />

buffers. These are allocated in units of 16K.<br />

The default is maxbuffers=512, but if that is not available upon entry, this is<br />

set to the number actually obtained. At least 32K is needed. This is in<br />

addition to the code and data space required by vi; this may be as much as<br />

128K. Changing maxbuffers has no effect.<br />

mesg When this option is on, ex allows others to use the write or talk commands<br />

to write to your terminal while you are in visual mode. The command<br />

mesg n<br />

overrides this variable (see mesg). This option has no effect on systems<br />

not supporting mesg.<br />

number, nu<br />

When this option is on, line numbers are displayed to the left of the text<br />

being edited.<br />

The default is nonumber.<br />

paragraphs<br />

This list of character pairs controls the movement between paragraphs in vi<br />

mode. Lines beginning with a period (.) followed by any pair of characters<br />

vi<br />

Chapter 2. Shell command descriptions 781

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