How to catch errors in a shell script ( multiple commands )?
Hi
I have a shell script like that
I would like to catch errors from all commands in Main() and write these errors into a file , something likes this:
and file error.log would look like this:
Somebody help please
Hi,
In my code, I am running rsync, if any error comes, I have to wirte the error to temp file and I want to send this temp file content to specified email address, I am getting starnge outpout, can you pls help to solve this?
My code is:
tempfile=error.`date '+%m%d%Y_%H%M%SGMT'`
rsync -az -e... (3 Replies)
Hi,
I want to call multiple java commands through a .sh file. I have drafted one with my least knowledge. But its not working. Pls help. I am trying to run this from Sun Solaris (OS 5.10) server with 10g oracle database.
echo \* starting script AUTORUN
echo \* get the Monitor path... (4 Replies)
Hi everybody,
I'm new to linux world and I need your help!!
I'm using vi to create a .sh script that process files moving them from a directory to another and unzipping a file.
I need to catch errors while moving or unzipping files.
For move command, I do:
mv -f... (2 Replies)
Hello friends,
Assume that, I am trying to execute a "db2 connect" command from Linux shell prompt via a shell script called "sample"
sample
db2 connect to bas39
$sample
If the database is not present its should display a custom error message by catching the error message given by db2.... (1 Reply)
Hello,
I need some help from the experts on PL/SQL and Shell scripting. I need a shell script that runs a PL/SQL procedure and gets the values returned from the PL/SQL procedure into the shell variables. The PL/SQL procedure returns multiple values.
I was able to assign a single return value... (1 Reply)
Hi,
I have a script in which i have to ask user to press the ENTER key to proceed further. can you please help me how can i achive this in my scripting?
echo "All the executables builded Successfully "
echo " Press Enter to Go Back to the Main Menu"
... (2 Replies)
Hi,
While running the psftp with the below code,it is able to connect and open the ftp connection and closed the connection.
But my scriptfile Test.ftp,is having the code "cd directoryname" where the directoryname does not exists.
In this case i should be able to catch the error,instead it is... (1 Reply)
I tried searching the forum for similar posts but its closed now.
Would appreciate any help on this.
I am trying to capture return value from a select query into a variable.
DB is Oracle
I am able to spool it to a file but I donot intend to use it.
Here is my script that does not work ;)
I... (27 Replies)
Hello!
Need help to write a Linux script that can be run from windows using command/Cygwin/any other way. I am new to scripting, actually i am trying to automate server health check like free disk space, memory along with few services status, if any services is not running then start services ,... (7 Replies)
I am working on script. it reads a file which contains multiple lines
Ex;
curl --write-out %{http_code} --silent --output /dev/null http://hostname:port/input=1
curl --write-out %{http_code} --silent --output /dev/null http://hostname:port/input=2
curl --write-out %{http_code} --silent ... (2 Replies)
Discussion started by: oraclermanpt
2 Replies
LEARN ABOUT OPENSOLARIS
catch
catch(1T) Tcl Built-In Commands catch(1T)__________________________________________________________________________________________________________________________________________________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. The catch command calls the Tcl interpreter recur-
sively to execute 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 the exceptional return code returned by evaluation
of script. Tcl defines the normal return code from script evaluation to be zero(0), or TCL_OK. Tcl also defines four exceptional return
codes: 1 (TCL_ERROR), 2 (TCL_RETURN), 3 (TCL_BREAK), and 4 (TCL_CONTINUE). Errors during evaluation of a script are indicated by a return
code of TCL_ERROR. The other exceptional return codes are returned by the return, break, and continue commands and in other special situa-
tions as documented. Tcl packages can define new commands that return other integer values as return codes as well, and scripts that make
use of the return -code command can also have return codes other than the five defined by Tcl.
If the varName argument is given, then the variable it names is set to the result of the script evaluation. When the return code from the
script is 1 (TCL_ERROR), the value stored in varName is an error message. When the return code from the script is 0 (TCL_OK), the value
stored in resultVarName is the value returned from 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 +- }}
}
SEE ALSO break(1T), continue(1T), error(1T), return(1T), tclvars(1T)KEYWORDS
catch, error
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Availability | SUNWTcl |
+--------------------+-----------------+
|Interface Stability | Uncommitted |
+--------------------+-----------------+
NOTES
Source for Tcl is available on http://opensolaris.org.
Tcl 8.0 catch(1T)