Search results for "module:Fsdb::Filter::dbcolcreate"

Fsdb::Filter::dbcolcreate - create new columns River stage zero No dependents

Create columns "NewColumn1", etc. with an optional "DefaultValue"....

JOHNH/Fsdb-3.0 - 04 Apr 2022 22:44:17 UTC

Fsdb - a flat-text database for shell scripting River stage zero No dependents

JOHNH/Fsdb-3.0 - 04 Apr 2022 22:44:17 UTC

Fsdb::Filter::dbcol - select columns from an Fsdb file River stage zero No dependents

Select one or more columns from the input database. If a value is given for empty columns with the -e option, then any named columns which don't exist will be created. Otherwise, non-existent columns are an error. Note: a safer way to create columns ...

JOHNH/Fsdb-3.0 - 04 Apr 2022 22:44:17 UTC

Fsdb::Filter::dbcoltype - define (or redefine) types for columns of an Fsdb file River stage zero No dependents

Define the type of each column, where COLUMN and TYPE are pairs. Or, with the "-v" option, redefine all types as string. The data does not change (just the header)....

JOHNH/Fsdb-3.0 - 04 Apr 2022 22:44:17 UTC

Fsdb::Filter::dbroweval - evaluate code for each row of a fsdb file River stage zero No dependents

Evaluate code for each row of the data. Typical actions are things like reformatting and other data transformations. Code can include embedded column names preceded by underscores; these result in the value of that column for the current row. The val...

JOHNH/Fsdb-3.0 - 04 Apr 2022 22:44:17 UTC

Fsdb::Filter::dbpipeline - allow db commands to be assembled as pipelines in Perl River stage zero No dependents

This module makes it easy to create pipelines in Perl using separate processes. (In the past we used to use perl threads.) By default (as with all Fsdb modules), input is from STDIN and output to STDOUT. Two helper functions, fromfile and tofile can ...

JOHNH/Fsdb-3.0 - 04 Apr 2022 22:44:17 UTC
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