I wish to write a Perl program that will provide a listing of files in a directory. The files must be listed in sorted order by the file name.
• By default, the program displays only file names.
• By default, the program lists the files in the current directory.
• The program must provide the... (2 Replies)
could i get any help with how to link this program together. i dont know what to put where the X's are
print `flush`;
thank(); #print thank header
use Getopt::Std; # use declaration with the options function
getopts("ld:") or usage() and exit; ... (3 Replies)
Long story short: I'm working inside of a Unix SSH under a bash shell. I have to code a C program that generates a random number. Then I have to call the compiled C program with a Perl program to run the C program 20 times and put all the generated random #s into a text file, then print that text... (1 Reply)
Must every module be compiled? Why is it Math::GMP never installs? I was simply trying to use Net::SSH::Perl and it's driving me nuts. Granted, I am working as a user with limited privileges, but this is ridiculous. I even tried creating an ubuntu virtual machine, going in as root, and... (2 Replies)
how would you exit out of a programm correctly, without having for the program to crash?
for example
print "Enter quit";
$input = <STDIN>;
if ($input eq "quit")
{
{QUIT THE PROGRAM}
}
else
{
print "invalid input";
}
one more thing, how do u exit a program "correctly", if... (3 Replies)
Hi
I am new to perl, i need to write a program to convert horizontal words to vertical
eg: cat, dog, cow,.....(text file)
this should be written as
1.cat
2.dog
like this. can u pls help me to work out.. (4 Replies)
I want to traverse a durectory for a particular file. Situataion is like this. Path is ABC/a/c/g. it has around 100 folders in it.
Search a directory which has word "*latest*" in its path.
and then from the latest go through z/x/c to file final.html.
In total, i want it to go through... (4 Replies)
can anyone help me out to write a code by connecting to the sql database and I need to print the list of tables present in the databse.
any ideas please. (1 Reply)
I created a program, so a kid can practice there math on it. It dispenses varies math problems and the kid must input an answer. I also want it to grade the work they have done, but I can't find the best place for it to print out the grade.
I have:
if ( $response =~ m/^/ ) {
$user_wants_to_quit... (1 Reply)
Discussion started by: germany1517
1 Replies
LEARN ABOUT OPENDARWIN
comm
COMM(1) BSD General Commands Manual COMM(1)NAME
comm -- select or reject lines common to two files
SYNOPSIS
comm [-123i] file1 file2
DESCRIPTION
The comm utility reads file1 and file2, which should be sorted lexically, and produces three text columns as output: lines only in file1;
lines only in file2; and lines in both files.
The filename ``-'' means the standard input.
The following options are available:
-1 Suppress printing of column 1.
-2 Suppress printing of column 2.
-3 Suppress printing of column 3.
-i Case insensitive comparison of lines.
Each column will have a number of tab characters prepended to it equal to the number of lower numbered columns that are being printed. For
example, if column number two is being suppressed, lines printed in column number one will not have any tabs preceding them, and lines
printed in column number three will have one.
The comm utility assumes that the files are lexically sorted; all characters participate in line comparisons.
DIAGNOSTICS
The comm utility exits 0 on success, and >0 if an error occurs.
SEE ALSO cmp(1), diff(1), sort(1), uniq(1)STANDARDS
The comm utility conforms to IEEE Std 1003.2-1992 (``POSIX.2'').
HISTORY
A comm command appeared in Version 4 AT&T UNIX.
BSD June 6, 1993 BSD