09-24-2009
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Lets say I have a file abc.txt and it has about 35 million rows. I would like to take a sample of 100 random rows from that file for my testing purpose and write it to a file say test.txt.
How do I do this operation?
Thanks,
Sashank (9 Replies)
Discussion started by: sashankkrk
9 Replies
2. Shell Programming and Scripting
Hi!
I need to read in the first line from a text file (which will only ever have one line in it), so I tried this....
while read line
do
echo $line
done < $file
But this wasn't returning anything. So I tired a different file, which had multiple lines of text in it, and it returned... (2 Replies)
Discussion started by: davewg
2 Replies
3. Shell Programming and Scripting
Hello,
I have got a script that reads a text file, and have got three problems that I an struggling with.
1. The script does not read the last line in the text file
2. within the second 'elif' within the script I included a 'break' - the script runs successfully (except for the first... (2 Replies)
Discussion started by: jermaine4ever
2 Replies
4. Shell Programming and Scripting
Hi everyone,
I am writing a BASH shell script that I will use to process data files. I have a text file that contains the names of the files to be processed, for example:
cat filenames.txt
file1
file2
file3
file4
file5
What I would like to do is set up a FOR loop within my script... (2 Replies)
Discussion started by: msb65
2 Replies
5. Shell Programming and Scripting
Hi ,
I am trying to write an shell, which reads a text file (from a location) having a list of numbers of strictly 5 digits only ex: 33144
Now my script will check :
1) that each entry is only 5 digits & numeric only, no alphabets, & its not empty.
2)then it executes a shell script called... (8 Replies)
Discussion started by: new_to_shell
8 Replies
6. Shell Programming and Scripting
I have list of files in a directory 'dir'. Each file is of type HTML. I need to read each file and get the string which starts with 'http' and write them in a new text file. How can i do this shell scripting?
file1.html
<head>
<url>http://www.google.com</url>
</head>
file2.html
<head>... (6 Replies)
Discussion started by: vel4ever
6 Replies
7. Shell Programming and Scripting
Hi ppl.
I want to read the first word of each line of a text file to a variable in a bash script.
Can anyone help pls, thanks. (6 Replies)
Discussion started by: cannot
6 Replies
8. Programming
performing this code to read from file and print each character in separate line
works well with ASCII encoded text
void
preprocess_file (FILE *fp)
{
int cc;
for (;;)
{ cc = getc (fp);
if (cc == EOF)
break;
printf ("%c\n", cc);
}
}
int
main(int... (1 Reply)
Discussion started by: khaled79
1 Replies
9. Shell Programming and Scripting
I have a test file that I want to read and insert only certain lines into the
the table based on a filter.
1. Rread the log file 12 Hours back Getdate() -12 Hours
2. Extract the following information on for lines that say "DUMP is
complete"
A. Date
B. Database Name
C.... (2 Replies)
Discussion started by: JolietJake
2 Replies
10. Shell Programming and Scripting
i have a text file as belows, it includes 2 columns, 1st is the column name, 2nd is the file_name
data_file.txt
column_name file_name
col1 file1
col2 file2
col3 file1
col4 file1
col5 file2
now, i would like to... (4 Replies)
Discussion started by: tester111
4 Replies
LEARN ABOUT MOJAVE
uri::url
URI::URL(3) User Contributed Perl Documentation URI::URL(3)
NAME
URI::URL - Uniform Resource Locators
SYNOPSIS
$u1 = URI::URL->new($str, $base);
$u2 = $u1->abs;
DESCRIPTION
This module is provided for backwards compatibility with modules that depend on the interface provided by the "URI::URL" class that used to
be distributed with the libwww-perl library.
The following differences exist compared to the "URI" class interface:
o The URI::URL module exports the url() function as an alternate constructor interface.
o The constructor takes an optional $base argument. The "URI::URL" class is a subclass of "URI::WithBase".
o The URI::URL->newlocal class method is the same as URI::file->new_abs.
o URI::URL::strict(1)
o $url->print_on method
o $url->crack method
o $url->full_path: same as ($uri->abs_path || "/")
o $url->netloc: same as $uri->authority
o $url->epath, $url->equery: same as $uri->path, $uri->query
o $url->path and $url->query pass unescaped strings.
o $url->path_components: same as $uri->path_segments (if you don't consider path segment parameters)
o $url->params and $url->eparams methods
o $url->base method. See URI::WithBase.
o $url->abs and $url->rel have an optional $base argument. See URI::WithBase.
o $url->frag: same as $uri->fragment
o $url->keywords: same as $uri->query_keywords
o $url->localpath and friends map to $uri->file.
o $url->address and $url->encoded822addr: same as $uri->to for mailto URI
o $url->groupart method for news URI
o $url->article: same as $uri->message
SEE ALSO
URI, URI::WithBase
COPYRIGHT
Copyright 1998-2000 Gisle Aas.
perl v5.18.2 2012-02-11 URI::URL(3)