Builtin support for appending to a file (similar to write file).

[sangee2004]

Builtin support for appending to a file would be helpful when there is a need to write to the same file with in a loop.

I tried the following gptscript to get a file with all acorn commands with their help text. Using sys.write in this case resulted in output file having help for only 1 acorn command which is as expected.

tools: listacorncommands, acornhelpandwrite

List all acorn commands. For each acorn commands from this list , get help text and write the help text to a file acornhelp.txt


---
name: acornhelpandwrite
description: get help text for acorn commands and write to file
tools: sys.write, acornhelp
args: command: acorn command
args: file: file name

get help text for acorn commands and write to a file 

---
name: acornhelp
description: get help text for acorn commands
args: command: acorn command

#!/bin/bash

acorn help ${command}

---
name: listacorncommands
description: List all acorn commands

#!/bin/bash

acorn help

It would be helpful to have sys.append in this case.