Here's an example that works using SQL/Plus against an Oracle database. The same principle could apply here. Namely construct the query so the output looks like "variable=<selected_value>" then eval it to create a shell variable.
Folks;
on a unix server I have a mapping file which holds a list mountpoints of all databases and their mountpoints. tab delimited or colon deliminted..I needed to copy the datafiles from the pristine mountpoints to test's mountpoints in this case. I needed to do this by passing sid name using... (18 Replies)
Iam new to shellscript.
1)How to strart QUERYMANAGER using shellscript.
2)How to put and get messages in MQSeries using shellscripts.
3)iam using local queues .
Thanks lot. (0 Replies)
Hello. I am a novince at writing shell scripts but here is the question. I have to write a shell script that does the following:
Once executed via crontab, the script should do the following:
a. get date/time stamp in for format 10-MAR-05 and
b. execute shell script my_script.sh (which... (2 Replies)
Hi,
I want to do automation on UI using shellscript.
eg:
1) Drop down menu contains assign , investigate, closed.
now there is one id want assign it using assign tab then need to investigate it and lastly close. Sometimes the id can't assign to perticular user.
there are so many... (11 Replies)
We have a production server at a client site running AIX. And recently when users are trying to connect to it via telnet, it prompts "No more multiple IP addresses to connect".
Can I know what does this error mean? and how to rectify this?
Thanks. (2 Replies)
It appears i cant connect linux VPS server via SSH or i cant SCP any file to it and i cant wget any file TO it (from inside it) while CSF (Config Server Firewall, LFD is running. Just after isntall in default configuration and after changing TESTING mode to LIVE mode.
Trying to wget & install... (1 Reply)
Greetings Experts,
I am working for a bank client and have a question on connect-direct and SFTP.
We are using Linux RedHat servers. We use connect-direct to transfer (NDM) files from one server to another server. At times, we manually transfer the files using SFTP from one server to another... (2 Replies)
Discussion started by: chill3chee
2 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)