You can set the value of a tag to a completely new value during the job
by using the .retag dot command, which has the following syntax:
.retag <new tag value>
Here
is an example of simple usage:
.retag MyProject
More
complex usage is possible:
.retag Job_${B}_${BF_D}
This
example sets the tag to use the run increment and current date system variables.
You can use a command to the server's command interpreter to set the
result. To use a command within the dot command, enclose the command in backtick
or backquote (ˋ ˋ) characters:
.retag `hostname`
This
example sets the tag to the result of running a hostname command on the server
running the step.
Note: Do not mix the backtick form and the standard assignment
form of the command.