I am just a beginner in Awk, and I use it occasionally, to manipulate large data files. I have faced with the following problem.
I have a file with a several thousands columns. It has a header, and then row after row of numerical data, except the first column, which contains symbols.
In the actual file, I have almost 15260 columns, with about 700 rows.
Here is an example of the header:
I want to extract columns whose header reads something like
. The first part, that is, LT000842RU is an ID, and the second part is CTRL. I want to extract all columns with _CTRL and put it in a new file, irrespective of the ID.
Hi All,
I am new to AWK programming. I have the following for loop in my awk program.
cat printhtml.awk:
BEGIN
-------- <some code here>
END{
----------<some code here>
for(N=0; N<H; N++)
{
for(M=5; M<D; M++) print "\t" D "";
}
-----
}
... (2 Replies)
Hi all,
I have written a wrapper script in Perl which will be used on AIX, Linux and Windows and I do not want to change any code for the needs for a specific OS if avoidable.
It works fine so far on all 3 OSes, not blowing up any stacks any more, but I am unsure how to handle writing log files... (7 Replies)
Hi Everyone,
I need some help in some data extraction that I need to perform.
I have a file with about 91000 lines. Among those lines, there are lines like the following, which are scattered among many other information:
==================
$V1
$V1$mb
"V862" "V1052" "V1388" "V1876"... (7 Replies)
Hi,
I am novice in PERL enviornment. I have a text files withso many entries in rows and columns. I have to pick up entries
named as "Uniprot ID" in the file and create a new text file with list of particular Uniprot ID entries. Can anybody guide regarding this.. I came to know abut fgrep... (1 Reply)
Hi,
im working on an assignment (airline ticketing system). im kinda having problems with the search function. i want users to be able to search by departure time or by flight. however, my output displays the whole chunk of data instead of what they are supposedly searching for. appreciate if... (1 Reply)
Good evening everyone! :)
I'm doing a small client / server application for sharing files in C, and I am trying to implement the following:
The client of my application sends to the address 255.255.255.255 a message requesting a particular file.In the network there is only one server,... (1 Reply)
Hi all,
I am a newbie to unix programming using C..
So i would like to have a few simple C programs to start off with..
I wanted programs on learning ,
abort,kill and raise,alarm and pause,I would also like to know how to use the vfork() in a prg
It would be really great if i can have... (1 Reply)
Hi all,
I am trying to figure out a way to write a cprg that masks SIG_PIPE & SIG_ABRT signals,check if they are pending , if they are pending unmask and service them.
But so far i have no luck!!!
Could you please let me know how to write it?
Thanks (3 Replies)
Hello,
I am just a new comer in this forum, looking for help in Shell Programming in Linux, bash/csh/ash!
Is there anyone who do can help so far, then, I will be grateful very very much (2 Replies)
i'm a grad student taking a UNIX course and a networks course (i have a background in C++ and JAVA). i'm trying to combine the two classes.
My questions stems from a networks programming homework assignment below:
"Using the operating system and language of your choice, develop a program to... (5 Replies)