mkscript: Make a command script

Package: system

Usage

mkscript script task submit

Parameters

script: Script file name. Commands will be successively added to this file.

task: Task name of command to be added to the script. If given on the command line then only commands for this task may be added to the script. If not given on the command line then the task will query for a task name for each new command. Currently the task name must not be abbreviated.

submit: Submit the completed script as a background job as the last act of the task? If not given on the command line the task will query before submitting the script.

append = no: Append new commands to an existing script file? If no the file will be deleted first. If verify = yes the user will be asked to confirm the deletion.

hidden = yes: Include hidden parameters in each command?

verify = yes: Verify each command, any file deletions, and the final script?

logfile = "script.log": Script log file name. When the script is submitted as a background job by this task any command and error output is directed to this file.

Description

A command script is created consisting of a number of commands to be executed sequentially. The task assumes the responsibility of formatting the command and placing it in the script file. The user sets the parameter values using the parameter editor eparam. As an optional final stage the task will optionally submit the script as a background job.

The sequence of steps are outline as follows:

(1): If the script already exists and append = no the script file is deleted. When verify = yes the deletion is verified with the user.

(2)

If the task is not specified on the command line then the user is queried for a task name.

(2a): The task must be loaded. If it has not been loaded a message is printed and the task query is repeated.

(3): Eparam is now invoked to allow the user to set the task parameters.

(4): If verify = yes the command is printed and the user is asked if the command is ok. If ok the command is added to the script.

(5): The user is asked if another command is to be added to the script. While the response is yes steps 2 to 5 are repeated.

(6): If verify = yes the script is paged and the user is asked if the script is ok. If not ok the script is deleted, with user confirmation, and steps 2 to 6 are repeated.

(7): If the submit parameter is not specified on the command line the user is asked if the script should be submitted as a background job.

The parameter hidden is important for the following reason. If the hidden parameters are not explicitly included in the script commands then the values of the hidden parameters will be those in the parameter file at the time of execution. Thus, in changes in the hidden parameters with eparam or explicit changes may produce unexpected results. However, if the hidden parameters are never changed then the commands are more readable when the hidden parameters are not included.

Examples

One of the most common usages in data reductions is to create repeated commands with different input data or parameters.

cl> mkscript script.cl transform

[eparam is called to set the parameter values for transform]

transform ("n1r.008", "n1r.008a", "disp012,distort,disp013",
database="identify.db", interptype="spline3", x1=1., x2=256., dx=1.,
nx=256., xlog=no, y1=4300., y2=6300., dy=INDEF, ny=800., ylog=no,
flux=yes, logfiles="STDOUT,logfile")

Is the command ok? (yes):
Add another command? (yes):

[eparam is called again for task transform]

transform ("n1r.010", "n1r.010a", "disp013,distort",
database="identify.db", interptype="spline3", x1=1., x2=256., dx=1.,
nx=256., xlog=no, y1=4300., y2=6300., dy=INDEF, ny=800., ylog=no,
flux=yes, logfiles="STDOUT,logfile")

Is the command ok? (yes):
Add another command? (yes): no

[The script is paged]

Is the script ok? (yes):
Submit the script as a background job? (yes):
Script script.cl submitted at:
Fri 10:32:57 01-Nov-85
[1]

To combine several tasks:

cl> mkscript script.cl ver- sub- hid-
Task name of command to be added to script: response

[eparam is called for response and parameter values are set]

Add another command? (yes):
Task name of command to be added to script: imarith
Add another command? (yes): no

To run the command script as a foreground job:

cl> cl < script.cl

To run the command script as a background job:

cl> cl < script.cl >& logfile &

Note that the output including possible error output is redirected to a logfile.

Bugs

The current implementation is preliminary. It is done with a script which makes it seem somewhat slow. The most important bug is that the command formatter is based on the output of lparam. If a task parameter name exceeds 12 characters it is truncated by lparam and is then also truncated by the command formatter. The script will then fail when executed! Also the task name may not be abbreviated.