05-21-2011
Except the trap statement that i must comment, i don't see any problem like that when i use your script.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Dear All,
I got a table creation file in a standard format. I need to accept parameters from the user & then based on the input change the data in the file. For. eg. i will accept the database name, dbspace name & user name from the user and accordingly change the same in the table creation... (2 Replies)
Discussion started by: lloydnwo
2 Replies
2. Shell Programming and Scripting
I have a script which take 3 input parameters
1st - a date (i.e. current date)
2nd - type (i.e. A)
3rd - limit (i.e. 40)
normally the date parameter would be current date, so I thought I could do this
calculate.sh $(date +%Y-%m-%d) A 40
however, it seems like it can't be done,... (3 Replies)
Discussion started by: mpang_
3 Replies
3. Shell Programming and Scripting
Hi i am a newbie who is trying to input parameters into this script, but not sure where to start.
The parameters that need to be input are the baseline label "abc.0111.BL " mantioned bellow, and database string "abc/abcp@db2 @counter.sql "
Environment: Windows XP
Running script: Cygwin 3.2
... (2 Replies)
Discussion started by: yarik20
2 Replies
4. Shell Programming and Scripting
Hi All,
I have tried to use ckdate (sun) command in script. It checks the input parameter which should be in 'YYYYMMDD format.
date=$( echo $1 | ckdate -f "%Y%m%d") | true
if ]
then
print " success"
else
print "no success"
fi
But in whatever format i pass the parameter,... (3 Replies)
Discussion started by: Amit.Sagpariya
3 Replies
5. Shell Programming and Scripting
I have to write a script to verify input parameters;
say esr should be YES or NO other wise the script should print an error.
This is what i tried in my script but I get the following error
:
esr="YES"
if ; then
print " Error should specify esr options YES/NO"
else
esr =$esr
fi
... (2 Replies)
Discussion started by: ramky79
2 Replies
6. UNIX for Dummies Questions & Answers
i have this basic code that accepts for two input one for the source file and the other is for the target directory. basically it is a simple copy command. the problem is at the end of the execution the second parameter string was passed to first parameter and it displays a message like:
cp:... (3 Replies)
Discussion started by: wtolentino
3 Replies
7. Shell Programming and Scripting
Hi,
I am facing a weird problem with input parameters. Please find more details about my problem below:
a) I am executing a korn shellscript with 11 input parameters from "Appworx" tool (it's a scheduling tool) and immediately displaying those 11 parameter values in unixscript and noticed... (4 Replies)
Discussion started by: npk2210
4 Replies
8. Shell Programming and Scripting
Hi,
I wonder how I can know if the input parameters to the script are numbers or text
Thanks (11 Replies)
Discussion started by: Gengis-Kahn
11 Replies
9. Shell Programming and Scripting
Hi,
Is there a simple way to take input of parameters after the first one? As following example, if I assign others=$2, it only takes the second one, if I assign others=$@, it will include the first one. I may try to assign others="$2 $3 $4 $5 $6 $7 $8 $9", it looks very ugly and could missing... (1 Reply)
Discussion started by: hce
1 Replies
10. AIX
friends
and I can validate whether to run the shell has input parameters m event date, I occasionally happen something like this does not work
if $ 1 is null then
echo has entered input parameters
else
echo "parameter ok"
fi (2 Replies)
Discussion started by: tricampeon81
2 Replies
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)