Sending something to standard error, or anywhere else doesn't change the return code of a command.
(this command makes no sense, but it also doesn't return a "negative" return code - the result of bc is 0, and that's what's returned, not the result of rm, in this case)
hi all. thanks for looking
i am doing some homework.
one question is that when type
wc
and then how to tell the program that we have finished entering data?
also
why do some operating systems report 22 as the number of bytes in the file above, while others only 20?
thanks so much,... (1 Reply)
Hello,
I have problem in writing the shell script involving MPE command STREAM related to HP-UX and Unix command. Script is
sh "nlshCMD 'STREAM <job name1>' | 'SHOWJOB' | grep $HPJOBNUM"
sh "nlshCMD 'STREAM <job name2>' | 'SHOWJOB' | grep $HPJOBNUM"
sh "nlshCMD 'STREAM <job name3>' |... (0 Replies)
Hello,
I have problem in writing the shell script involving MPE command STREAM related to HP-UX and Unix command. Script is
sh "nlshCMD 'STREAM <job name1>' | 'SHOWJOB' | grep $HPJOBNUM"
sh "nlshCMD 'STREAM <job name2>' | 'SHOWJOB' | grep $HPJOBNUM"
sh "nlshCMD 'STREAM <job name3>' |... (1 Reply)
Hi ,
I have a piece of code ...wherein I need to assign the following ...
1) A command line argument to a variable
e.g origCount=ARGV
2) A unix command to a variable
e.g result=`wc -l testFile.txt`
in my awk shell script
When I do this :
print "origCount" origCount --> I get the... (0 Replies)
Hi,
Well my title isn't very clear I think. So to understand my goal:
I have a script "test1"
#!/bin/bash
xvkbd -text blabla
with xbindkeys, I bind F5 key in order it runs my test1 script
So when I press F5, test1 runs.
I'm under Emacs/Vi and I press F5 in order to have "blabla" be... (0 Replies)
I am going through the Unix Made Easy second edition book by John Muster. So far it's been very informative and I can tell it may be a bit out of date.
In one of the exercises it talks about the "sort" command and using it to sort column's of data etc. The "sort" command has changed a bit and... (1 Reply)
Hi all,
I wish to know whether Unix can access window's file in Unix's terminal?
Apart from that, how to copy files or share files between Window and Unix? I get to know of secure copy, however, my company's Unix does not support the feature of secure copy? Any other method for me to share/... (5 Replies)
I'm trying to write a bash script called YN that looks like the following
YN "Specify a question" "doThis" "doThat"
where "doThis" will be executed if the answer is "y", otherwise "doThat".
For example
YN "Do you want to list the file dog?" "ls -al dog" ""
Here's my attempt... (3 Replies)
Hi Folks,
I have a file name abc.xml in my windows machine at the location c:\ytr\abc.xml
which I want to place at the unix box machine inside cde directory.. at the following location that is /opt/app/cde/
now the credentials of unix box are
abc345 -->(dummyid)
ftyiu88--->(dummy passwd)
... (4 Replies)
Discussion started by: punpun66
4 Replies
LEARN ABOUT OPENDARWIN
return
return(n) Tcl Built-In Commands return(n)
__________________________________________________________________________________________________________________________________________________NAME
return - Return from a procedure
SYNOPSIS
return ?-code code? ?-errorinfo info? ?-errorcode code? ?string?
_________________________________________________________________DESCRIPTION
Return immediately from the current procedure (or top-level command or source command), with string as the return value. If string is not
specified then an empty string will be returned as result.
EXCEPTIONAL RETURNS
In the usual case where the -code option isn't specified the procedure will return normally (its completion code will be TCL_OK). However,
the -code option may be used to generate an exceptional return from the procedure. Code may have any of the following values:
ok Normal return: same as if the option is omitted.
error Error return: same as if the error command were used to terminate the procedure, except for handling of errorInfo and errorCode
variables (see below).
return The current procedure will return with a completion code of TCL_RETURN, so that the procedure that invoked it will return also.
break The current procedure will return with a completion code of TCL_BREAK, which will terminate the innermost nested loop in the code
that invoked the current procedure.
continue The current procedure will return with a completion code of TCL_CONTINUE, which will terminate the current iteration of the
innermost nested loop in the code that invoked the current procedure.
value Value must be an integer; it will be returned as the completion code for the current procedure.
The -code option is rarely used. It is provided so that procedures that implement new control structures can reflect exceptional condi-
tions back to their callers.
Two additional options, -errorinfo and -errorcode, may be used to provide additional information during error returns. These options are
ignored unless code is error.
The -errorinfo option specifies an initial stack trace for the errorInfo variable; if it is not specified then the stack trace left in
errorInfo will include the call to the procedure and higher levels on the stack but it will not include any information about the context
of the error within the procedure. Typically the info value is supplied from the value left in errorInfo after a catch command trapped an
error within the procedure.
If the -errorcode option is specified then code provides a value for the errorCode variable. If the option is not specified then errorCode
will default to NONE.
SEE ALSO
break(n), continue(n), error(n), proc(n)
KEYWORDS
break, continue, error, procedure, return
Tcl 7.0 return(n)