“Advanced” Configuration

This chapter presents the “standard” configuration of DMK. However, the flexibility of the tool permits customizations and extensions.

Aliases & Variables Management

The following paragraphs explain how to create your own aliases and variables.

Declare an alias

Aliases are declared using the following syntax:

alias::<name>::[var|novar]_[force|noforce]::<your code>::# comment

• [var|novar]

  • var : creates automatically a variable with the name of the alias

  • novar : doesn’t create the above variable

• [force|noforce]

  • force : if a command or an alias already exists it’s overwritten

  • noforce: a warning is printed instead of overwriting the existing alias or command

Example of a warning printout

2012-06-22_15-31-19::DMK.pm::ComputeConfig ::WARNING ==> $DMK_HOME\\etc\\dmk.conf alias/command "u" is already in use, Please use FORCE option to override it

Declare a variable

Variable are declared using the following syntax

var::<name>::[ =|+|-]::[ begin|end|nooption|warn|nowarn]::<your value>::

• [=|+|-]

  • = : Equal operator

  • • : expand an existing variable

  • : contract, remove element from a variable

• [begin|end|noption|warn|nowarn]

  • begin/end : works only with the operators [+|-]

  • nooption|warn : default behave print a warning in case the variable exists

  • nowarn : disable warning and overwrites the variable

Example of a warning printout

2012-06-22_18-46-09::DMK.pm::ModifyConfigVar ::WARNING ==> Variable : PG_BASE has been overwritten
2012-06-22_18-46-09::DMK.pm::ModifyConfigVar ::WARNING ==> Old value : /u01/app/postgres
2012-06-22_18-46-09::DMK.pm::ModifyConfigVar ::WARNING ==> New value : "/u01/app/postgres2"