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A-Shell Reference

Navigation: Operations > A-Shell Executables > A-Shell

Command Line Switches

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Updated June 2025

Below is a list of the A-Shell startup command switches, followed by extended descriptions where needed. Note that if A-Shell/Windows is launched with no command line arguments, and there is no Command Line File defined, it will repeat the command line from the previous launch.

Switch

Action

Switch

Action

b

Buffer Name: Change name of screen snapshot buffer

n

Suppress the A-Shell splash/license/welcome screen

ba

Buffer and Snapshot: Activate snapshots, append

nc

Removes the caption bar, creating a caption-less window

bc

Overwrite Buffer File: activate auto-snapshot

nm

No Menu: Hides the A-Shell menu bar

cgi

Common Gateway Interface (web programming)

noclx

Disables search for .clx and .cl files. Must be 1st argument

d

Display Device Name

nrs

Removes the resizing border of the main window

debug

Set Debug mode; equivalent to SET DEBUG on startup

ntts

Same as OPTIONS=NTTS in miame.ini, but much more convenient in situations where you need the feature for just a couple of sessions such as for services

devate

Use ATE Device ID causes A-Shell to use the ATE device ID as session device name.

o

Specify alternate Settings File

dpm

Activates DPI Per Monitor Awareness mode

q

Quiet Mode

e

For A-Shell Exit

r

Specify amount of Memory

erz

Specifies an Ersatz File of device definitions

s

Was 'standalone mode'; no longer applicable.

fastcgi

FastCGI: Higher performance variation of cgi

silo

'silo mode' for use within or to simulate Docker single-process environment

g

Specify Alternate Icon

t

Background Task

h

Ignore Hangup Signal

td

Use specific Terminal Driver

hd

Hangup Delay

trace

Debugging Trace Mode

hei

Hangup Error Immediately

ua

Unattended Mode

hetcki

Hangup Error on Tcki

uo

Override User Name

hp

Hangup Parent

v

Version

i

Specify Ini File

w

Deprecated though still supported; use -o

j

Force the use of specified Jobname

wp

Override the default Window Position

k

Prompt for security key

wpx

Enhanced version of -wp; see Window Position

m

Maximize: Force window to remain maximized

z

Invisible operations

min

Minimize: Force window to start minimized

zi

Invisible with Icon

mntsys

Mount System Device

zt

Same as -z, except that task appears in  task list

mx

Remove Menu Buttons from title bar

2

Child Session

 

See Also

History

2019 September, A-Shell 6.5.1666:  Add dpm.

2018 July, A-Shell 6.5.1639:  Add ntts.

2016 February, A-Shell 1506:  Add mntsys and noclx.

2013 December, A-Shell 1371:  Add nc and nrs.