Here documents look like this - with an example delimiter of "EOF"
Not like what you showed. A here doc becomes terminal input, emulating a user letting the program run, then answering questions.
Hi All,
I've login to Unix using login name guest and I'm working on it,
I need another session to run some script hence tried to login
but password invalid it says here my question is :
Since I'm in working in one session can I set the password without knowing old password? is there any... (1 Reply)
Hi,
we have our shell sessions timing out after every 5 minutes , if there is no activity.
Is there any way i can keep my session for longer than 5 minutes or untill i end the session.
may be any dummy program that runs background and doesn't take up lot of resources or any ideas.
... (6 Replies)
Hi there.
How do I make the DB connection see the parameter variables passed to the unix script ? The code snippet below isn't working properly.
sqlplus << EOF
user1@db1/pass1
BEGIN
PACKAGE1.perform_updates($1,$2,$3);
END;
EOF
Thanks in advance,
Abrahao. (2 Replies)
Hi All,
I have a question regarding recording the unix sessions.
I know the recording can be done using script comman, however i want to create a daily file of unix session. Also when i open multiple sessions how will the script multiple session. Please suggest some solutions also which file... (0 Replies)
I am not able to login in gnome session and java session in Sun solaris 9& 10 respectively through xmanager as a nis user, I am able to login in common desktop , but gnome session its not allowing , when I have given login credentials, its coming back to login screen, what shoul I do to allow nis... (0 Replies)
We recently moved servers to a new data center, and now we're experiencing user sessions timing out after non-activity. We didnt experience this before, or know of any timeout settings that may have been changed.
Any things I can check out on the server? (3 Replies)
Hi All,
I want to capture all the operations performed in the terminal. So to achieve this I used “script” command. This works as I expected. But this command captures all the standard output which is redirected to terminal. For example if i “tail” a file, even the tail output is getting... (2 Replies)
hi, i am on AIX 5.3. I would like to write scripts that initiate or reattach to a screen session to run some commands either from unix or Universe. Can anyone assist me with a with a wuick primer on this. I can attach or initiate a screen manually and then run the commands but I would like to... (6 Replies)
hi ..
i have a isql session which inside which i have two variables defined.. i wanna calculate % based on those variables. i knw i can easily do % calculation in csh if i could get the value of these variables passed outside the isql session . is tat possible ?? pls advice
somthin like below... (1 Reply)
Discussion started by: Rahul619
1 Replies
LEARN ABOUT MINIX
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)