Dear All,
Would you tell me how I can passing a message along pipes?
I have built a token ring connected with pipes, but I don't know how to pass the message along it through the command line...
Thx.
Yours,
i- (1 Reply)
I am having a shell script which has to be called from a C program. I have to pass two parameters to this script. HOw can I do that?
eg:
int main()
{
char st1;
char str2;
// call a shell script
call_sh(str1,str2) where call_sh is the name of the shell script.
then i need to get the return... (5 Replies)
Hi All,
Does anyone have any solutions for passing back multiple variables back to the SHELL from a call to an ORACLE procedure:
eg
#username='scott'
#password='tiger'
#database='orcl'
username='ITGCD03D03'
password='tC5epIew'
database='ITGCD03D'
sqlplus -s... (4 Replies)
i want to add a system call(successfuly added) and pass the message(which contains int and a string)
/*code i used my program calling system call printmsg*/
message mm;
mm.m1_i1=10;
mm.m1_p1="hello";
printmsg(&mm);
/*user library*/
printmsg(*m1)
{
printf("integer... (1 Reply)
Hi
I have written a script using ftp to get files from one server and copy them to 2 dirrerent servers. I wish to call this script from a parent script that will check the number of files copied and run a check sum for each file. As the filenames for the files in the get portion of the script... (3 Replies)
Hi,
In my perl script I want to check whether *.csv files exist and take the count .
Below is the code:
$path = “/home/usr/jan/myfiles”
my $File_Count = `ls *.csv | wc -l `; # Checks in the current directory #Works fine if files exists.
my $File_Count = `ls $path/*.csv | wc -l `; # I need... (2 Replies)
Hello,
Has somebody download it before oracle deleted from support section?
I tried dl it from:
oracle.com/us/products/tools/message-passing-toolkit-070499.html Oracle Message Passing Toolkit
but:
section decommissioned. Same in support and edelivery
I phoned to oracle support and... (2 Replies)
Hi,
I am getting the below messsage in /var/adm/message after patching but sendmail is working after restoring the backup file.
sendmail: q4G7U1Cj014774: SYSERR(root): 127.0.0.1 config error: mail loops back to me (MX problem?)
sendmail: q4G801cw025824: SYSERR(root): 127.0.0.1 config... (3 Replies)
Hi All,
I have a shell script(test_abc.sh) with the following shell commands, which are invoking the same shell script with different parameters.
test_abc.sh
. ./test.sh abc >> test.log
. ./test.sh xyz >> test.log
. ./test.sh pys >> test.log
. ./test.sh abc >> test.log
.
.
... (4 Replies)
Discussion started by: dev.devil.1983
4 Replies
LEARN ABOUT REDHAT
catch
catch(n) Tcl Built-In Commands catch(n)
__________________________________________________________________________________________________________________________________________________NAME
catch - Evaluate script and trap exceptional returns
SYNOPSIS
catch script ?varName?
_________________________________________________________________DESCRIPTION
The catch command may be used to prevent errors from aborting command interpretation. Catch calls the Tcl interpreter recursively to exe-
cute script, and always returns without raising an error, regardless of any errors that might occur while executing script.
If script raises an error, catch will return a non-zero integer value corresponding to one of the exceptional return codes (see tcl.h for
the definitions of code values). If the varName argument is given, then the variable it names is set to the error message from interpret-
ing script.
If script does not raise an error, catch will return 0 (TCL_OK) and set the variable to the value returned from script.
Note that catch catches all exceptions, including those generated by break and continue as well as errors. The only errors that are not
caught are syntax errors found when the script is compiled. This is because the catch command only catches errors during runtime. When
the catch statement is compiled, the script is compiled as well and any syntax errors will generate a Tcl error.
EXAMPLES
The catch command may be used in an if to branch based on the success of a script.
if { [catch {open $someFile w} fid] } {
puts stderr "Could not open $someFile for writing
$fid"
exit 1
}
The catch command will not catch compiled syntax errors. The first time proc foo is called, the body will be compiled and a Tcl error will
be generated.
proc foo {} {
catch {expr {1 +- }}
}
KEYWORDS
catch, error
Tcl 8.0 catch(n)