AT&T UNIX™PC Unix System V Users Manual - tenox

AT&T UNIX™PC Unix System V Users Manual - tenox AT&T UNIX™PC Unix System V Users Manual - tenox

01.01.2013 Views

TAR ( 1) TAR ( 1) FILES r causes tar to use the next argument as the name of the archive instead of fdevfmt?. If the name of the file is -, tar writes to the standard output or reads from the standard input, whichever is appropriate. Thus, tar can be used as the head or tail of a pipeline. Tar can also be used to move hierarchies with the command: cd fromdir; tar cf - • I ( cd todir; tar xf - ) b causes tar to use the next argument as the blocking factor for tape records. The default is 1, the maximum is 20. This option should only be used with raw magnetic tape archives (see f above). The block size is determined automatically when reading tapes (key letters x and t). tells tar to complain if it cannot resolve all of the links to the files being dumped. If I is not specified, no error messages are printed. m tells tar not to restore the modification times. The modification time of the file will be the time of extraction. /dev/mt? /tmp/tar* DIAGNOSTICS BUGS Complaints about bad key characters and tape read/write errors. Complaints if not enough memory is available to hold the link '� tables. There is no way to ask for the n-th occurrence of a file. Tape errors are handled ungracefully. The u option can be slow. The b option should not be used with archives that are going to be updated. The current magnetic tape driver cannot backspace raw magnetic tape. If the archive is on a disk file, the b option should not be used at all, because updating an archive stored on disk can destroy it. The current limit on file-name length is 100 characters. - 2 -

TBL ( I ) TBL ( I ) NAME tbl - format tables for nroff or troff SYNOPSIS tbl [ -TX ] [ files ] DESCRIPTION Tbl is a preprocessor that formats tables for nroff or troff (not included on the UNIX PC). The input files are copied to the standard output, except for lines between .TS and .TE command lines, which are assumed to describe tables and are re-formatted by tbl. (The .TS and .TE command lines are not altered by tbl) . • TS is followed by global options. The available global options are: center center the table (default is left-adjust); expand make the table as wide as the current line length; box enclose the table in a box; doublebox enclose the table in a double box; allbox enclose each item of the table in a box; tab (x) use the character x instead of a tab to separate items in a line of input data. The global options, if any, are terminated with a semi-colon (;). Next come lines describing the format of each line of the table. Each such format line describes one line of the actual table, except that the last format line (which must end with a period) describes all remaining lines of the table. Each column of each line of the table is described by a single key-letter, optionally followed by specifiers that determine the font and point size of the corresponding item, that indicate where vertical bars are to appear between columns, that determine column width, inter-column spacing, etc. The available key-letters are: e center item within the column; r right-adjust item within the column; I left-adjust item within the column; n numerically adjust item in the column: units positions of numbers are aligned vertically; s span previous item on the left into this column; a center longest line in this column and then leftadjust all other lines in this column with respect to that centered line; span down previous entry in this column; replace this entry with a horizontal line; replace this entry with a double horizontal line. The characters B and I stand for the bold and italic fonts, respectively; the character 1 indicates a vertical line between columns. The format Jines are followed by lines containing the actual data for the table, followed finally by .TE. Within such data lines, data items are normally separated by tab characters. - 1 -

TAR ( 1) TAR ( 1)<br />

FILES<br />

r causes tar to use the next argument as the name of the<br />

archive instead of fdevfmt?. If the name of the file is<br />

-, tar writes to the standard output or reads from the<br />

standard input, whichever is appropriate. Thus, tar can<br />

be used as the head or tail of a pipeline. Tar can also be<br />

used to move hierarchies with the command:<br />

cd fromdir; tar cf - • I ( cd todir; tar xf - )<br />

b causes tar to use the next argument as the blocking factor<br />

for tape records. The default is 1, the maximum is<br />

20. This option should only be used with raw magnetic<br />

tape archives (see f above). The block size is determined<br />

automatically when reading tapes (key letters x and t).<br />

tells tar to complain if it cannot resolve all of the links<br />

to the files being dumped. If I is not specified, no error<br />

messages are printed.<br />

m tells tar not to restore the modification times. The<br />

modification time of the file will be the time of extraction.<br />

/dev/mt?<br />

/tmp/tar*<br />

DIAGNOSTICS<br />

BUGS<br />

Complaints about bad key characters and tape read/write errors.<br />

Complaints if not enough memory is available to hold the link '�<br />

tables.<br />

There is no way to ask for the n-th occurrence of a file.<br />

Tape errors are handled ungracefully.<br />

The u option can be slow.<br />

The b option should not be used with archives that are going to<br />

be updated. The current magnetic tape driver cannot backspace<br />

raw magnetic tape. If the archive is on a disk file, the b option<br />

should not be used at all, because updating an archive stored on<br />

disk can destroy it.<br />

The current limit on file-name length is 100 characters.<br />

- 2 -

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