This is probably a csh fragment. Here it is inserted into a csh script:
Code:
#!/usr/bin/env tcsh
# @(#) s1 Demonstrate feature.
# Infrastructure details, environment, commands for forum posts.
# Uncomment setenv command to run script as external user.
# setenv PATH "/usr/local/bin:/usr/bin:/bin"
echo
setenv LC_ALL C ; setenv LANG C
echo "Environment: LC_ALL = $LC_ALL, LANG = $LANG"
echo "(Versions displayed with local utility version)"
sh -c "version >/dev/null 2>&1 && version '=o' tcsh"
echo
while ($#argv > 0)
set arg=$argv[1]
shift argv
switch ($arg)
case "-cell":
set cell=$argv[1]
if ( !($cell == "bus" || $cell == "core")) then
echo "\n******Valid cell names are core or bus******"
goto help
else
echo "cell = ${cell}"
endif
breaksw;
case "-path_to_ezqb":
set path_to_ezqb=$argv[1]
endsw
end
exit 0
producing:
Code:
% ./s1 -cell x
Environment: LC_ALL = C, LANG = C
(Versions displayed with local utility version)
OS, ker|rel, machine: Linux, 2.6.26-2-amd64, x86_64
Distribution : Debian GNU/Linux 5.0.7 (lenny)
tcsh 6.14.00
******Valid cell names are core or bus******
help: label not found.
this is in one of my scripts...
if ($#argv == 0) then
echo 'blah bla'
exit 0
endif
I want it to be something like this...
if ($#argv == 0 OR $argv >=3)
echo 'blah bla'
exit 0
endif
so when the arguments are none, or greater than three I want this "if then" to take over. how? I... (5 Replies)
I am just learning Tcl and there are few things about it that is perplexing me. I have a question about the switch statement.
Why are these two switch statements giving me different results?
$ cat test_switch.tcl
#!/usr/bin/tcl
set foo "abc"
switch abc a - b {puts "No. 1"} $foo {puts... (2 Replies)
hi,
how to access console of a switch having rj45 on switch side to db 9 female on pc side console cable which needs to be connected to one console server having rj11 on its side and db 9 female on other end.i.e. on switch side,console cable has rj45 and db 9 pin female connector on other side of... (1 Reply)
when i run my program, i have a parameter, that i want to set the value to another string
i am using
int main(int argc, char **argv) {
char my_str=argv;
printf("%s",my_str);
return 0;
}
and i get
Segmentation fault
ran using
./my_prog /usr/share/dict/words hello1
... (2 Replies)
I’m trying to work off of someone else code they gave me as an example but they are gone! I’m trying to pretty much write a wrapper of several different scripts.
They use argv…I keep on thinking the next one should be argv ect. I’m not sure if maybe its different in PERL maybe if that’s true? Or... (5 Replies)
Hello folks,
I have an AIX server that is connected to a storage array via a Brocade switch using 4 ports from either side. The zoning is done such that there are 4 paths visible from the server to the storage.
My work involves frequent disabling or enabling the switch ports that are... (1 Reply)
Hi,
I have written a script for finding deviation for router,switch &fw.
It is working fine on linux server.
But when I try on sunos 5.10 OS it showing "grep: illegal option -- A". I have used grep -C and grep -A.
How it will work on sunos?
Help me out please !! (12 Replies)
All of my machines (various open source derivatives on x86 and amd64) store argv above the stack (at a higher memory address). I am curious to learn if any systems store argv below the stack (at a lower memory address).
I am particularly interested in proprietary Unices, such as Solaris, HP-UX,... (9 Replies)
So i am trying to read in file
readFile <GivenFile> modFile
looking for a regular file under the directories in the GivenFile and print them out is my over all goal.
basically I am looking for anything that looks like a directory in the given file and printing it out.
Since I am trying to do... (2 Replies)
Discussion started by: squidGreen
2 Replies
LEARN ABOUT MINIX
getopt
GETOPT(3) Library Functions Manual GETOPT(3)NAME
getopt - get option letter from argv
SYNOPSIS
int getopt(argc, argv, optstring)
int argc;
char **argv;
char *optstring;
extern char *optarg;
extern int optind;
DESCRIPTION
Getopt returns the next option letter in argv that matches a letter in optstring. Optstring is a string of recognized option letters; if a
letter is followed by a colon, the option is expected to have an argument that may or may not be separated from it by white space. Optarg
is set to point to the start of the option argument on return from getopt.
Getopt places in optind the argv index of the next argument to be processed. Because optind is external, it is normally initialized to
zero automatically before the first call to getopt.
When all options have been processed (i.e., up to the first non-option argument), getopt returns EOF. The special option -- may be used to
delimit the end of the options; EOF will be returned, and -- will be skipped.
DIAGNOSTICS
Getopt prints an error message on stderr and returns a question mark (?) when it encounters an option letter not included in optstring.
EXAMPLE
The following code fragment shows how one might process the arguments for a command that can take the mutually exclusive options a and b,
and the options f and o, both of which require arguments:
main(argc, argv)
int argc;
char **argv;
{
int c;
extern int optind;
extern char *optarg;
.
.
.
while ((c = getopt(argc, argv, "abf:o:")) != EOF)
switch (c) {
case `a':
if (bflg)
errflg++;
else
aflg++;
break;
case `b':
if (aflg)
errflg++;
else
bproc();
break;
case `f':
ifile = optarg;
break;
case `o':
ofile = optarg;
break;
case `?':
default:
errflg++;
break;
}
if (errflg) {
fprintf(stderr, "Usage: ...");
exit(2);
}
for (; optind < argc; optind++) {
.
.
.
}
.
.
.
}
HISTORY
Written by Henry Spencer, working from a Bell Labs manual page. Modified by Keith Bostic to behave more like the System V version.
BUGS
It is not obvious how `-' standing alone should be treated; this version treats it as a non-option argument, which is not always right.
Option arguments are allowed to begin with `-'; this is reasonable but reduces the amount of error checking possible.
Getopt is quite flexible but the obvious price must be paid: there is much it could do that it doesn't, like checking mutually exclusive
options, checking type of option arguments, etc.
4.3 Berkeley Distribution May 27, 1986 GETOPT(3)