It has nothing to do with your C++ code. command.str() needs to look like this:
This redirects stderr to stdout, so both streams will be merged and returned as stdout to your program.
what's the proper syntax to redirect output, including all errors?
ls -la > direct.list makes out put file direct.list
but if i'm running a script and i want to include the errors, would i type something like:
myscript.scr 2> out_list.txt or will that get the errors only? (1 Reply)
Hi all,
I am getting the following error when I try to do a build of a product.
I dont have the dependencies of the binaries involved in the build and thats the reason I was not able to find which library to add or to proceed to the next step to solve the reference problem.
Undefined ... (1 Reply)
I need to find a way to keep a running tally of how many times events or actions occur. Say if a user is prompted to make inputs of 1 or 2, I want it to keep track of how many times 1 was entered, and how many times 2 was entered.
Thanks for your help (5 Replies)
Hi,
I'm writing a scheduling script which will co-ordinate the launching of scripts.
This script is scheduling based on an input file, and launches the appropriate scripts at the right times.
The only issue I'm having is:
- if a script dies, or even has a syntax error, I want to catch... (1 Reply)
Need help redirecting output to a file including errors if any,I have 2 script namely push.ksh and run.ksh, I'm scp'ing push.ksh to another server and executing remotely via run.ksh, the script run.ksh runs locally but does not capture any errors in "servername.out" file (I tried testing various... (10 Replies)
for
ga016dgf -> /usr/bin/last | cut -c1-3
Invalid record size. Unable to continue ...
any ideas?
running on
ga016dgf -> uname -a
HP-UX ga016dgf B.11.31 U ia64 1246079591 unlimited-user license
thank you.
Video tutorial on how to use code tags in The UNIX and Linux Forums. (4 Replies)
Hi folks,
I am trying to send an email in Perl script with the below code.
I have written the code in Padre IDE and installed all the required modules(Mail::Sendmail) and executed the code.
It is neither showing errors nor giving the output. I havnt received an mail after running the below... (1 Reply)
This script produces no errors. It also does not produce an output file. Any ideas?
#!/usr/bin/python
import tarfile
output_filename = 'etc.tar'
source_dir = '/etc/'
#To build a .tar.gz for an entire directory tree:
def make_tarfile(output_filename, source_dir):
with... (2 Replies)
Hi Guys,
I am new to python and I am trying to print ouput of Popen on my text screen (tkinter gui).
I was able to make it work on Linux with this code:
Linux: Working
def PrintSomething2():
outputdata = commands.getstatusoutput("sudo fping -f host.list")
for i in outputdata:... (2 Replies)
Hi,
When I run the command "print_manifest | grep "Main Memory", I get the note :
# /opt/ignite/bin/print_manifest | grep "Main Memory"
NOTE: Could not read the /etc/resolv.conf file.
Main Memory: 196498 MB
#
How do I suppress the part :
NOTE: Could not read the... (4 Replies)
Discussion started by: anaigini45
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)