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awk '$1!=$2' file

awk '!/^>/{while(length%3) $0=$0 "X";if(!length) $0="XXX"}1' infile

echo "ATGACTGtagctagATGCTgtg" |sed 's/[a-z]/N/g'


Best Regards,
Suresh...

And for the sake of portability, both character arrays should be of the same length.tr '[:lower:]' '[N*]'or for this specific case
tr acgt '[N*4]'or
tr acgt NNNNRegards,
Alister

https://www.unix.com/shell-programming-scripting/136140-passing-parameters-value-object-shell-script.html

Essentially, the first parameter becomes $1 and the second becomes $2 and so on....

Create the file (with an added check):
#! /usr/bin/awk -f

NR==1
NR>1{ for (i=1; i<=NF; i++) { a+=$i; }
END { if (NR > 1) { for (i=1;i<=NF;i++) {printf a[i]/(NR-1) "\t";} } print ""; }Make it...

Is the "tree no" field significant? Assuming it is not:

awk '
BEGIN { FS = "\t"; }
NR == 1 { print; next; }
{ for (i = 1; i <= NF; i++) { sum += $i; } }
END {
printf "\t";
...

Try: awk 'NR==1;NR>1{for (i=1;i<=NF;i++){a[i]+=$i}}END{for (i=1;i<=NF;i++){printf a[i]/(NR-1)" "};printf "\n"}' file

I'm not the sed expert, so removing the last two lines is beyond me. Removing the first two lines in one command is pretty straight forward:


sed '1,2d' <file


1,2d reads: delete the range of...

Hi.

Try:


$ awk '$1=substr($1, 7, 10)' file1
7147.1Ptv3 CTTGAACAT
7149.1Ptro CTTGAACAT
7891.1Hs3. CTTGAACATTTGC


(according to your output, you've taken characters 7 thru 16...)

What is important is that you are trying, and learning. We all had to start somewhere and every once in a while I come across some of my old code and wonder why I ever did it that way!!

Hello. I hope you don't mind another suggestion. Try to use getline instead:
awk '
BEGIN {
while (getline < ARGV[1]) {
a = $1

if (!(getline < ARGV[2])) {
...

There are a couple of ways that you could go about this. What makes the difference is what is in the two files. A single line in each, or wanting every line processed, is pretty straight forward. ...

You are most welcome. Your analysis of the programme was spot on.

I'm sure some will suggest something less easy to read -- I prefer to err on the side of easy to maintain:


awk '
...

Something like this:


awk '
/_X/ || /_Y/ { print; next; }
{ print; print; }
' input-file-name


This is simple enough that you're on your own to figure out why it works :)