I have been trying to execute this program and i am getting an error. Kindly help me.
# The filename of the file which contains the protein sequence
$proteinfilename = '/users/sukeerthiteja/desktop/perl/NM_021964fragment.pep';
# First open the file and associate a filehandle with it. for readability purpose lets use the filehandle PROTEINFILE.
# Now we do the actual reading of the protein sequence data from the file,by using < > to get
# input from the filehandle. We store the data into variable $protein
$protein = <PROTEINFILE>;
#now that we got our data we can close the file
#Print the protein onto the screen
print "Here is the protein:\n\n";
sukeerthi-tejas-macbook-pro:desktop sukeerthiteja$ perl 1.pl
Here is the protein:
I am not able to print the protein content on the screen.
Is this a problem with me of first properly putting things in my directory.
Reading a protein sequence from file
Your file "/users/sukeerthiteja/desktop/perl/NM_021964fragment.pep" contains only one value or line? Because if it contains more than one line of information , your assigning of
"$protein = <PROTEINFILE>;"
will not work. It will only he last line of your file. IF thats the case you have to read the filehandle through a while loop.
Sorry for a spelling mistake. My last sentence should be read like this :
It will only print the last line of your file. If that is the case you have to read the filehandle through a while loop.