Try using the 'trap' command to trap the SIGUSR1 signal. You can run your rsh command in the background by ending the line with &, and use a subshell to send SIGUSR1 back to the parent shell to signal that rsh is finished. Something like this:
Hi Guys,
I'm having a problem trying to change to a different user within a script .
I want to change to a specific user and then run the subsequent commands using his previleges .
I remember having used ' su ' some years back for this , can't figure it out now !!
Help appreciated . (3 Replies)
Hi,
I'm writing a shell script that rsh's onto a remote machine and runs a perl script that requires values to be entered as the script executes. I also need to ba able to see the outputs from the perl script.
When I try to run it I get an stty : Invalid argument and understand that this is... (4 Replies)
Hi,
a little help.
I need to test the return code of a list file command on a remote system (Unix) using the rsh command. More exactly, to test is a directory exists, I try the following command:
rsh $remoteHost "ls -la " $DirRemote
Now, if the $DirRemote is not correct and I test... (3 Replies)
I am trying to perform a remote tape backup from one SCO openserver to another remote SCO Openserver which happens to have a tape drive configured.
I have added entries into host.equiv and .rhosts on the tape drive server:
prodution_server root # This is equivalent to the hostname and... (1 Reply)
Hi,
I am writing a script that will require me to perform tasks across servers. I tried to use rsh <host> "Commands..." > /dev/null 2>&1. However, I am required to execute a long series of commands after that and rsh does not seem to support this and its also insecure.
I tried to use rsh to... (5 Replies)
Hi,
root@air01a>SS7Manager -status
This command gives correct output. But when I write this in script and run it on SUNMC (which can connect to air01 and by default login as root). It gives the error "SS7manager not found" or "can not open". Here is the scripts.
#!/bin/sh
rsh air01a... (4 Replies)
Hi all,
I have a file on a remote machine and I want to do a cut operation on that file.
So, I have been doing
rsh <remote> " cut -d " " -f 2 <filename> "
cut: invalid delimiter
But, when I get the file to the local machine and run the same command, I get... (1 Reply)
Hi,
I want to do a awk operation on a file on a remote machine.
I am using rsh for this.
rsh <remote> awk '{print $2}' process.txt
output:
awk: syntax error near line 1
awk:illegal statement near line 1
I can do the awk operation by logging into the remote machine.
Can... (1 Reply)
while using the rsh command to execute script S1 in the remote server it is not using the .profile in remote server.
The script S1 which is using sqlplus is not able to set up the ORACLE environment which is defined in .profile
Thanks in advance.... (3 Replies)
Hi,
I earlier determined I cannot use FTP to execute remote commands on a server.
My problem, I need to use a second server to get/put files via ftp onto my primary server and various tertiary servers.
my server(A) ---> server (B) ----> server blah(c), server balh(C)
I cannot directly... (1 Reply)
Discussion started by: mcclunyboy
1 Replies
LEARN ABOUT XFREE86
trap
trap(1) User Commands trap(1)NAME
trap, onintr - shell built-in functions to respond to (hardware) signals
SYNOPSIS
sh
trap [ argument n [n2...]]
csh
onintr [-| label]
ksh
*trap [ arg sig [ sig2...]]
DESCRIPTION
sh
The trap command argument is to be read and executed when the shell receives numeric or symbolic signal(s) (n). (Note: argument is scanned
once when the trap is set and once when the trap is taken.) Trap commands are executed in order of signal number or corresponding symbolic
names. Any attempt to set a trap on a signal that was ignored on entry to the current shell is ineffective. An attempt to trap on signal 11
(memory fault) produces an error. If argument is absent all trap(s) n are reset to their original values. If argument is the null string
this signal is ignored by the shell and by the commands it invokes. If n is 0 the command argument is executed on exit from the shell. The
trap command with no arguments prints a list of commands associated with each signal number.
csh
onintr controls the action of the shell on interrupts. With no arguments, onintr restores the default action of the shell on interrupts.
(The shell terminates shell scripts and returns to the terminal command input level). With the - argument, the shell ignores all inter-
rupts. With a label argument, the shell executes a goto label when an interrupt is received or a child process terminates because it was
interrupted.
ksh
trap uses arg as a command to be read and executed when the shell receives signal(s) sig. (Note that arg is scanned once when the trap is
set and once when the trap is taken.) Each sig can be given as a number or as the name of the signal. trap commands are executed in order
of signal number. Any attempt to set a trap on a signal that was ignored on entry to the current shell is ineffective. If arg is omitted
or is -, then the trap(s) for each sig are reset to their original values. If arg is the null (the empty string, e.g., "" ) string then
this signal is ignored by the shell and by the commands it invokes. If sig is ERR then arg will be executed whenever a command has a non-
zero exit status. If sig is DEBUG then arg will be executed after each command. If sig is 0 or EXIT for a trap set outside any function
then the command arg is executed on exit from the shell. The trap command with no arguments prints a list of commands associated with each
signal number.
On this man page, ksh(1) commands that are preceded by one or two * (asterisks) are treated specially in the following ways:
1. Variable assignment lists preceding the command remain in effect when the command completes.
2. I/O redirections are processed after variable assignments.
3. Errors cause a script that contains them to abort.
4. Words, following a command preceded by ** that are in the format of a variable assignment, are expanded with the same rules as a vari-
able assignment. This means that tilde substitution is performed after the = sign and word splitting and file name generation are not
performed.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO csh(1), exit(1), ksh(1), sh(1), attributes(5)SunOS 5.10 23 Oct 1994 trap(1)