10-23-2015
Try double quoting the file name variable.
Constructing an organ (pipe next to pipe) might not be the best solution.
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I have a html file called myfile. If I simply put "cat myfile.html" in UNIX, it shows all the html tags like <a href=r/26><img src="http://www>. But I want to extract only text part.
Same problem happens in "type" command in MS-DOS.
I know you can do it by opening it in Internet Explorer,... (4 Replies)
Discussion started by: los111
4 Replies
2. Shell Programming and Scripting
I have a file which has following contents:
localhost_IP_SIP_1233026552455.xml
localhost_IP_SIP_1233026552460.xml
localhost_IP_SIP_1233026552467.xml
localhost_IP_SIP_1233026552759.xml
localhost_IP_SIP_1233026552969.xml
localhost_IP_SIP_1233026552975.xml ... (2 Replies)
Discussion started by: Aditya.Gurgaon
2 Replies
3. UNIX for Dummies Questions & Answers
I want to print the contents of a file from 2nd line to last but one line using the AWK command.
I tried using the Shell Script,MyScript as fallows:
MyScript:
{
if(NR>1)
{
if(NR<9)
{
print $0
}
}
}
and used the commnd :
awk -f MyScript Filename
Note: Filename contains 9 lines text.... (0 Replies)
Discussion started by: ashok.g
0 Replies
4. Shell Programming and Scripting
Hi all
I have two files (first_file.txt) and ( second_file.txt). The first file consists of sentences line by line given as :
Established in 1905 , Las Vegas officially became a city in 1911 .
With the growth that followed , at the close of the century Las Vegas was the most populous... (10 Replies)
Discussion started by: my_Perl
10 Replies
5. Shell Programming and Scripting
Hi
i would like to extract some part of the file to a new file.
first I would like to search for a string in the file and then i want two or three line above from the string to the the required string(can be any character)
I would like this to be made generalized in a script
Thanks (5 Replies)
Discussion started by: wedng.bell
5 Replies
6. Shell Programming and Scripting
I have around 100 html files and in each html file I have 5-6 such paragraphs of a company and I need to extract the Name of the company from either the one after "title" or "/company" and then the number of employees and finally the location .
<div class="search_result">
<div... (1 Reply)
Discussion started by: gubbu
1 Replies
7. Shell Programming and Scripting
Hello guys,
I'm trying to extract all the expressions between the following tags: <b></b> from a HTML file.
This is how it looks: big lines containing several dozens expressions (made of 1,2,3,4,6 or even 7 words) I would like to extract:
<b>bla ble</b>bla ble</td><tr valign="top"><td... (3 Replies)
Discussion started by: bobylapointe
3 Replies
8. UNIX for Dummies Questions & Answers
I have the contents of file1
1 2 3
4 5 6
7 8 9
i'm trying to figure out how to add chars to them
so it would display as this, if it's possible
1 . 2 . 3 \
4 . 5 . 6 \
7 . 8 . 9 \
thanks! (1 Reply)
Discussion started by: austing5
1 Replies
9. UNIX for Dummies Questions & Answers
<tr><td bgcolor=#D7EBAD><b>Instructions :</b></td>
<td>`cat temp.txt`</td></tr>
Hi Experts,
I have an requirement of displaying file contents in HTML mail , for which am using the above approach, Where as the output is kind of not as expected.
If there are 5 lines in the file, in the... (4 Replies)
Discussion started by: scott_cog
4 Replies
10. UNIX for Dummies Questions & Answers
I want to extract a table from an HTML file. the table starts with
<table class="tableinfo"
and ends with next closing table tag
</table>
how can I do this with awk/sed...
---------- Post updated at 04:34 PM ---------- Previous update was at 04:28 PM ----------
also I want to... (4 Replies)
Discussion started by: koutroul
4 Replies
LEARN ABOUT OPENDARWIN
pipe
PIPE(2) BSD System Calls Manual PIPE(2)
NAME
pipe -- create descriptor pair for interprocess communication
SYNOPSIS
#include <unistd.h>
int
pipe(int *fildes);
DESCRIPTION
The pipe() function creates a pipe, which is an object allowing unidirectional data flow, and allocates a pair of file descriptors. The
first descriptor connects to the read end of the pipe, and the second connects to the write end, so that data written to fildes[1] appears on
(i.e., can be read from) fildes[0]. This allows the output of one program to be sent to another program: the source's standard output is set
up to be the write end of the pipe, and the sink's standard input is set up to be the read end of the pipe. The pipe itself persists until
all its associated descriptors are closed.
A pipe whose read or write end has been closed is considered widowed. Writing on such a pipe causes the writing process to receive a SIGPIPE
signal. Widowing a pipe is the only way to deliver end-of-file to a reader: after the reader consumes any buffered data, reading a widowed
pipe returns a zero count.
RETURN VALUES
On successful creation of the pipe, zero is returned. Otherwise, a value of -1 is returned and the variable errno set to indicate the error.
ERRORS
The pipe() call will fail if:
[EMFILE] Too many descriptors are active.
[ENFILE] The system file table is full.
[EFAULT] The fildes buffer is in an invalid area of the process's address space.
SEE ALSO
sh(1), read(2), write(2), fork(2), socketpair(2)
HISTORY
A pipe() function call appeared in Version 6 AT&T UNIX.
4th Berkeley Distribution June 4, 1993 4th Berkeley Distribution