Alrigt, I need to write a shell script where it counts the number of folders and files and dispays "My home directory has 'x' files and 'y' directories."
So, I was thinking of doing this.
set x = `ls | wc`
so, if I have 8 files and folders in my home directory, x is not 8.
now, I was... (1 Reply)
hi guys,
i have a DEl xps laptop cor 2 duo 2.2
i have vista installed on it
i want to install a dual Boot UNIX on it..
can some one guide me ...cause i m tottaly new to UNIX
i want to install unix on that laptop along with Vista....
thx
any help would be deeply appreciated
(sorry if i... (5 Replies)
I need to write a script to test a nsort c program. I have written 8 .txt files with different cases. Also 8 .txt files with expected outcome. The shell I have written always "test pass" for the first case but always "fail" for the rest... Here is a portion of my code (as I still don't know how to... (5 Replies)
hy guys,
I have perl script provided to me but i need to convert it into shell .Can you help me in this using sed shell command.
cat /etc/passwd |perl -ne '/^(\w+):\w+: (\w+)/ and print "$1, $2\n";' (1 Reply)
i write a shell program and i execute that after i made a bin directiry in my home directory(i didnt give any permissions)
now i change to other directory.then i execute it bit it is saying " no such a file or directory"
can any one help me please (2 Replies)
Hi people....
I have just started to learn unix.I want to know which version of Unix to install plus how to install it.I need to practise and make myself aware of how unix works.My thread is from an educational point of view.Also please feel free to give your suggestions as I am... (3 Replies)
Hello,
I am trying to write a script that reads names from a file called input, removes names if they have the same letter next to each other and prints the others.
e.g. Colin & John would be printed
Garry & Lynn would be removed
My thinking is that I read in each name and... (3 Replies)
i have windows 8 host on Dell Laptop
vmware 9
redhat 7.2 iso downloaded through redhat official site
after installation on vm it only boots into text dont show graphics
Please guide:( (1 Reply)
Hello so I've stored some csv data to be read into variables like this
Name,Team,Shop,Shoe
etc,etc,etc,etc
Code:
sep=","
{
while IFS=$sep read Name Team Shop Shoe
do
count=1
dirname=$Name
while
do
((count++))
dirname="${Name}$count" (4 Replies)
Discussion started by: darklord173
4 Replies
LEARN ABOUT ULTRIX
getopt
getopt(3) Library Functions Manual getopt(3)Name
getopt - get option letter from argument vector
Syntax
#include <stdio.h>
int getopt (argc, argv, optstring)
int argc;
char **argv;
char *optstring;
extern char *optarg;
extern int optind, opterr;
Description
The subroutine returns the next option letter in argv that matches a letter in optstring. The 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. The optarg is set to point to the start of the option argument on return from
The function places in optind the argv index of the next argument to be processed. The external variable optind is automatically initial-
ized to 1 before the first call to
When all options have been processed (that is, up to the first non-option argument), returns EOF. The special option -- may be used to
delimit the end of the options; EOF will be returned, and -- will be skipped.
Diagnostics
The function prints an error message on stderr and returns a question mark (?) when it encounters an option letter that is not included in
optstring. Setting opterr to 0 disables this error message.
Examples
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:
#include <stdio.h>
main (argc, argv)
int argc;
char **argv;
{
int c;
extern int optind, opterr;
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;
bufsiza = 512;
break;
case '?':
errflg++;
}
if (errflg) {
fprintf (stderr, "usage: . . . ");
exit (2);
}
for ( ; optind < argc; optind++) {
if (access (argv[optind], 4)) {
.
.
.
}
See Alsogetopt(1)getopt(3)