Comparing alternate lines of code Post: 303025827

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

alternate lines from two files

A basic request two files want to combine them but on alternate lines

2. Shell Programming and Scripting

alternate lines

Hi, I'm new to Unix. I want to read the all the lines from a text file and write the alternate lines into another file. Please give me a shell script solution. file1 ----- one two three four five six seven newfile(it should contain the alternate lines from the file1) ------- one...

3. Shell Programming and Scripting

comparing lines in file

i have 2 files and i want to compare i currently cat the files and awk print $1, $2 and doing if file1=file2 then fail, else exit 0 what i want to do is compare values, with column 1 being a reference i want to compare line by line and then still be able to do if then statement to see if worked...

4. Shell Programming and Scripting

reading alternate lines of a file

hi, i have 2 files. file1: 1 2 3 4 5 6 file2: a b c d e f g h i

5. Shell Programming and Scripting

Insert string in alternate lines

Hi All, In continuation of my previous thread 'Add text at the end of line conditionally', I need to further modfiy the file after adding text at the end of the line. Now, I need to add a fixed charater string at alternate lines starting from first line using awk or sed.My file is now as below:...

6. Shell Programming and Scripting

Comparing lines of two different files

Hello, Please help me with this problem if you have a solution. I have two files: <file1> : In each line, first word is an Id and then other words that belong to this Id piMN-1 abc pqr xyz py12 niLM y12 FY4 pqs fiRLym F12 kite red <file2> : same as file1, but can have extra lds...

7. Programming

Perl : joining alternate lines

Hi, I need to join every alternate line in a file for eg:input file $ cat abc abc def ghi jkloutput abc def ghi jklcode i wrote for this $ cat add_line.pl #!/usr/bin/perl -w my $count=1; #my $line=undef; my @mem_line; my $i=0; my $x=0;

8. UNIX for Dummies Questions & Answers

Comparing lines of data

Total UNIX Rookie, but I'm learning. I have columns of integer data separated by spaces, and I'm using a Mac terminal. What I want to do: 1. Compare "line 1 column 2" (x) to "line 2 column 2" (y); is y-x>=100? 2. If yes, display difference and y's line number 3. If no, increment x and y by...

9. Shell Programming and Scripting

Grep values on alternate lines

Hi, I have a file like 2011|ACC|.* 2013|ACC|.* 2011|ACCC|.* 2013|ACCC|.* 2013|ACCV|.* 2011|ADB|.* 2013|ADB|.* 2011|ADBC|.* 2013|ADBC|.* 2011|AIA|.* 2013|AXJ|.* 2013|NNN|.* .* represnts any alphanumeric characters after this part of the string I need a code to return only the...

10. Shell Programming and Scripting

Process alternate lines in awk/sed/perl

hi.. i have a fasta file with the following format >sequence1 CCGGTTTTCGATTTGGTTTGACT >sequence2 AAAGTGCCGCCAGGTTTTGAGTGT >sequence3 AGTGCCGCAGAGTTTGTAGTGT Now, i want to read alternate line and add "GGGGGGGGGGG" to end of every sequence Desired output: >sequence1...

LEARN ABOUT SUSE

look

LOOK(1) 						    BSD General Commands Manual 						   LOOK(1)

NAME

     look -- display lines beginning with a given string

SYNOPSIS

     look [-dfa] [-t termchar] string [file]

DESCRIPTION

     The look utility displays any lines in file which contain string as a prefix.  As look performs a binary search, the lines in file must be
     sorted (where sort(1) got the same options -d and/or -f that look is invoked with).

     If file is not specified, the file /usr/share/dict/words is used, only alphanumeric characters are compared and the case of alphabetic char-
     acters is ignored.

     Options:

     -d      Dictionary character set and order, i.e. only alphanumeric characters are compared. (On by default if no file specified).

     -f      Ignore the case of alphabetic characters. (On by default if no file specified).

     -a      Use the alternate dictionary /usr/share/dict/web2

     -t      Specify a string termination character, i.e. only the characters in string up to and including the first occurrence of termchar are
	     compared.

     The look utility exits 0 if one or more lines were found and displayed, 1 if no lines were found, and >1 if an error occurred.

FILES

     /usr/share/dict/words  the dictionary
     /usr/share/dict/web2   the alternate dictionary

SEE ALSO

     grep(1), sort(1)

COMPATIBILITY

     The original manual page stated that tabs and blank characters participated in comparisons when the -d option was specified.  This was incor-
     rect and the current man page matches the historic implementation.

HISTORY

     Look appeared in Version 7 AT&T Unix.

AVAILABILITY

     The look command is part of the util-linux-ng package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux-ng/.

BSD
								   June 14, 1993							       BSD