Displaying specific lines from a CSV file Post: 302392134

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Displaying specific lines in a file.

I'm trying to figure out how to display a certain line in a text file. I keep getting references to Tail and Head, and I know how these work, but i'm lost on how to find say the third out of the five lines and display only that. I thought maybe grep could help, but that doesn't seem likely. ...

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Displaying the Last Modification Time of a specific file

How can I get and display the last modification time of a file? in scripting or specifically using Batch file I want this info for me to determine whether an image has been edited or not by using the last modification time and compare it to our stored date of modification. can somebody help...

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how to display specific lines of a specific file

are there any basic commands that can display lines 99 - 101 of the /etc/passwd file? I'm thinking use of head and tail, but I forget what numbers to use and where to put /etc/passwd in the command.

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Hi, I am using below command to display the number of line, but its returning no of lines along with file name. But i want only no of line in the variable p. Please help me on this? p=`wc -l "text file"` echo "$p"

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Displaying specific columns in a file

Hi, I'm just wondering how you display a specific set of columns of a specified file in Unix. For example, if you had an AddressBook file that stores the Names, Phone numbers, and Addresses of people the user entered in the following format (the numbers are just to give an idea of what column...

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Howdy. I know this is most likely possible using sed or awk or grep, most likely a combination of them together, but how would one go about running a grep like command on a file where you only try to match your pattern to the second field in a line, space delimited? Example: You are...

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Displaying lines of a file which have the highest number?

Hello Wondering if anybody may be able to advise on how I can filter the contents of the following file: <object_name>-<version> <Instance> GM_GUI_code.fmb-4 1 GM_GUI_code.fmb-5 1 GM_GUI_code.fmx-4 ...

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insert data into specific lines of a CSV

So I work in a 1 to 1 laptop deployment and sometimes we need to mass order parts. The vendor will send us a text file and we have to manually input serial numbers. Well I have a full blown web based inventory system which I can pull serial number reports from. I then have to input the part...

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Quick UNIX command to display specific lines in the middle of a file from/to specific word

This could be a really dummy question. I have a log text file. What unix command to extract line from specific string to another specific string. Is it something similar to?: more +/"string" file_name Thanks

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Convert a horizontal lines to vertical lines in a csv file

Hi.. I need some help in converting the below horizontal lines to vertical lines format. can anyone help me on this. input file Hour,1,2,3,4,5 90RT,106,111,111,112,111 output file Hour,90RT 1,106 2,111 3,111 4,112 5,111

LEARN ABOUT MOJAVE

digest::crc

Digest::CRC(3)						User Contributed Perl Documentation					    Digest::CRC(3)

NAME

       Digest::CRC - Generic CRC functions

SYNOPSIS

	 # Functional style

	 use Digest::CRC qw(crc64 crc32 crc16 crcccitt crc crc8 crcopenpgparmor);
	 $crc = crc64("123456789");
	 $crc = crc32("123456789");
	 $crc = crc16("123456789");
	 $crc = crcccitt("123456789");
	 $crc = crc8("123456789");
	 $crc = crcopenpgparmor("123456789");

	 $crc = crc($input,$width,$init,$xorout,$refout,$poly,$refin,$cont);

	 # add data to existing

	 $crc = crc32("ABCD", $crc);

	 # OO style
	 use Digest::CRC;

	 $ctx = Digest::CRC->new(type=>"crc16");
	 $ctx = Digest::CRC->new(width=>16, init=>0x2345, xorout=>0x0000,
				 refout=>1, poly=>0x8005, refin=>1, cont=>1);

	 $ctx->add($data);
	 $ctx->addfile(*FILE);

	 $digest = $ctx->digest;
	 $digest = $ctx->hexdigest;
	 $digest = $ctx->b64digest;

DESCRIPTION

       The Digest::CRC module calculates CRC sums of all sorts.  It contains wrapper functions with the correct parameters for CRC-CCITT, CRC-16,
       CRC-32 and CRC-64, as well as the CRC used in OpenPGP's ASCII-armored checksum.

SEE ALSO

       https://tools.ietf.org/html/rfc4880#section-6

AUTHOR

       Oliver Maul, oli@42.nu

COPYRIGHT

       CRC algorithm code taken from "A PAINLESS GUIDE TO CRC ERROR DETECTION
	ALGORITHMS".

       The author of this package disclaims all copyrights and releases it into the public domain.

perl v5.18.2							    2017-10-06							    Digest::CRC(3)

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Displaying specific lines in a file.

Discussion started by: MaestroRage

2. Shell Programming and Scripting

Displaying the Last Modification Time of a specific file

Discussion started by: jaque18

3. UNIX for Dummies Questions & Answers

how to display specific lines of a specific file

Discussion started by: raidkridley

4. Shell Programming and Scripting

Displaying number of lines from file

Discussion started by: shivanete