rsh and timeout


 
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Old 01-06-2010
rsh and timeout

hi,

i have many ksh shell scripts running "rsh" command and sometimes the remote host doesn't answer so the rsh command doesn't return data and the script waits.

How can i modify this to have a forced return to continue my script , a kind of controlled timeout ?

thanks in advance
Christian

---------- Post updated at 05:37 PM ---------- Previous update was at 05:01 PM ----------

hi ,

i've found "-t" flag :

# rsh app506a -t 5 "date"
rsh: timed out waiting for connection.

it seems to work ok
the remote host is AIX 5.3.0

is somebody have informations about the relationship between AIX version and this rsh flag ?

regards
Christian
 
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RCP(1)							    BSD General Commands Manual 						    RCP(1)

NAME
rcp -- copy file to and from remote machines SYNOPSIS
rcp [-45FKpxz] [-P port] file1 file2 rcp [-45FKprxz] [-P port] file... directory DESCRIPTION
rcp copies files between machines. Each file argument is either a remote file name of the form ``rname@rhost:path'' or a local file (contain- ing no colon or with a slash before the first colon). Supported options: -4, -5, -K, -F, -x, -z These options are passed on to rsh(1). -P port This will pass the option -p port to rsh(1). -p Preserve file permissions. -r Copy source directories recursively. DIAGNOSTICS
rcp is implemented as a protocol on top of rsh(1), and thus requires a working rsh. If you intend to use Kerberos authentication, rsh needs to be Kerberos aware, else you may see more or less strange errors, such as "login incorrect", or "lost connection". HISTORY
The rcp utility first appeared in 4.2BSD. This version is derived from 4.3BSD-Reno. HEIMDAL
April 16, 2003 HEIMDAL