wc3270/Command-line options

The syntax for wc3270 is:

wc3270 [option]... [hostname [port]]

or to specify a session file:

wc3270 [option]... session-filename.wc3270

Here is a summary of wc3270 command-line options. The table columns are:

Option

The name and syntax of the option.

Meaning

A summary of what the option does.

Resource and Further Details

The wc3270 resource that the option sets. Most command-line options set an wc3270 resource value. The hyperlinks to the wc3270 resources give more detailed information about what each option does.

Default

The default value of the wc3270 resource.

Notes

Additional information about the option.

Options

Option	Meaning	Resource and Further Details	Default	Notes
+S	Turn off auto-shortcut mode	autoShortcut = false	false
--help	Display basic command-line help and then exit
-4	Prefer IPv4 addresses	preferIpv4 = true	false	New in 4.2
-6	Prefer IPv6 addresses	preferIpv6 = true	false	New in 4.2
-accepthostname name	Name to match in the host's TLS certificate	acceptHostname
-clear resource	Set a Boolean resource to false
-clientcert name	Name of client certificate for TLS	clientCert
-codepage codepage	Host EBCDIC code page	codePage	bracket
-connecttimeout seconds	Timeout before giving up on a host connection	connectTimeout
-devname device-name	Device name (workstation ID) response to TELNET NEW-ENVIRON request	devName
-httpd [address:]port	Start HTTP server	httpd
-keymap keymap-name[,...]	Override the default keymap	keymap
-loginmacro actions	Actions to run when host connection is established	loginMacro
-minversion version	Minimum version number required (major.minortypeiteration)	minVersion
-model model	Model of 3270 to emulate	model	3279-4-E
-noverifycert	Do not verify the TLS host certificate	verifyHostCert = false	true
-nvt	Force NVT mode -- do not negotiate 3270 mode	nvtMode = true	false
-oversize columnsxrows	Make the display larger than the default for the 3270 model	oversize
-port number	TCP port to connect to	port	23
-proxy type:[user[:pass]@]server[:port]	Type of proxy and proxy server to use	proxy
-reconnect	Reconnect to host after session disconnects	reconnect = true	false
-S	Turn on auto-shortcut mode	autoShortcut = true	false
-scriptport [address:]port	Accept TCP connections for s3270 protocol sessions	scriptPort
-scriptportonce	Accept only one -scriptport session	scriptPortOnce = true	false
-secure	Limit actions that can modify the local workstation	secure = true	false
-set resource -set resource=value	Set a Boolean resource to true Set a resource to some value
-sl lines	Save lines lines of screen data in the scrollbar buffer	saveLines	4096
-socket	Accept s3270 protocol sessions on the Unix-domain socket /tmp/x3sck.pid	socket = true	false
-title text	Set the window title to text	title	varies
-tn terminal-name	Use terminal-name as the terminal name reported to the host	termName	varies
-trace	Turn on data stream and action tracing	trace = true	false
-tracefile file-name	Use file-name as the file for data stream and action tracing	traceFile	Desktop\x3trc.pid.txt	Use -trace to turn on tracing
-tracefilesize bytes	Limit trace files to bytes bytes in size	traceFileSize
-user user-name	Use user-name in the reply to the TELNET NEW-ENVIRON sub-negotiation	user	varies
-utf8	Use UTF-8 encoding for all I/O on the workstation (files, script output, etc.)	utf8 = true	false
-v	Display version information on standard output and then exit
-xrm 'wc3270.resource: value'	Set the value of a resource

Deprecated options

Option	Meaning	Resource and Further Details	Default	Notes
-charset codepage	Host EBCDIC code page	charset	bracket	Use -codepage instead
-verifycert	Verify the TLS host certificate	verifyHostCert = true	true	Redundant; this is the default