cdb ( 1 ) USER COMMANDScdb ( 1 )

NAME

cdb - display cql data files

SYNOPSIS

cdb [ options ] [ file ... ]

DESCRIPTION

cdb displays cql(1) and cdb(3) data files. Input data information is optional if the input is self describing. Otherwise the default input format is flat, the default input schema is best guess, and the default input comment is empty. The default output format is flat, the default output schema is the same as the input schema with external types and virtuals omitted, and the default output comment is the same as the input comment.

OPTIONS

-c, --count
Print the total number of records on exit.
-d, --debug=level
Set the debug trace level. Higher levels produce more output.
-h, --identify
Display header identification information and exit.
-i, --input[=options...]
The following options describe the input data. Options describe the input by default. The option value may be omitted.
-l, --library=lib
lib is loaded as a runtime dll. lib must define the function cdb_init. See cdb(3).
-m, --methods
List all available methods and exit.
-o, --output[=options...]
The following options describe the output data. The option value may be omitted.
-B, --bufsize=size
Sets the data io buffer size to size.
-C, --comment=string
Sets the data comment to string.
-D, --details=string
Sets the method details to string.
-X, --dump
Enables record level trace messages.
-F, --format=name
The data format (method). Formats can be composed using a : separated list of these names:
cdb
For sparse records. pzip may perform better.
flat
Delimiter separated or fixed width fields, terminator separated or fixed length records.
gzip
gzip(1) compression.
pzip
pzip(1) compression.
vdelta
vdelta(1) differencing and/or compression.
-H, --header
Generate and/or read data identification header.
-M, --map=name
Set the record data map to name.
-P, --pack
Set the CDB_PACK hint.
-R, --raw
Display raw record data.
-S, --schema=name
Set the record data schema to name composed of:
TBD
TBD
-E, --terminated
An otherwise fixed length record also has a record terminator.
-T, --test=mask
Add the implementation defined mask to the data/library test mask.
-V, --verbose
Enable verbose trace messages.
-W, --watch=count
Enable --dump and --verbose after count records are processed.

SEE ALSO

cql(1), gzip(1), od(1), pzip(1), vdelta(1), cdb(3)

IMPLEMENTATION

version
cdb (AT&T Research) 1999-05-01
author
Glenn Fowler <gsf@research.att.com>
copyright
Copyright © 1991-2008 AT&T Intellectual Property
license
http://www.opensource.org/licenses/cpl1.0.txt