OK this one sounds like it should be a natural...
it must be possible to send a number say 200 to a text file and later use it as a variable?
yada yada > file.txt
how would I retrieve that number to use as a variable? Is this possible? (5 Replies)
Logic of code
if ( $var is a number ) {
Do something
}
else {
Do something else
}
My question is: How do I check if a variable is a number. All the reg ex that I came up with to match this is failing. Please help. (3 Replies)
I'm working on formatting some attendance data to meet a vendors requirements to upload to their system. With some help on the forums here, I have the data close. But they've since changed what they want.
The vendor wants me to submit three fields to them. Field 1 is the studentid field,... (4 Replies)
Hello All,
A part of my very basic perl code requires me to read a single value from a text file.
The file output is the following:
Reading image ... done
IMAGEREGION=0x0x0-256x162x256
VOXELDIMENSION=0.9375000000x1.2000000477x0.9375000000
VOXELNUMBER=10527001... (7 Replies)
I have a file which is delimetered by ',' i need to filter out a file with respect to the number of fileds in each line.
a,s,d,f,g,h,j,k,l
1,2,3,3,4,5,6,7,6
a,2,3
4,5,6,7
in this
i neeed to filter out the lines with 8 column to another file and rest to another file.
so
... (3 Replies)
Hi,
I am new to unix. I need to insert a variable which contains some lines of text into a text file after fixed number of lines..
Please help me on this..
Thanks in Advance,
Amrutha (3 Replies)
In the hello.htm have the sentenses:
Hello $name
How are you?
The perl script:
$name = "David";
open(HEADER,"hello.htm");
while(<HEADER>) { $html .= $_; }
close(HEADER);
print "$html";I making something about template. But it can't process the $name variable. (4 Replies)
Hy!
I need to post-process some data files which have variable (and periodic) number of fields. For example, I need to square (data -> data*data) the folowing data file: -5.34281E-28 -3.69822E-29 8.19128E-29 9.55444E-29 8.16494E-29 6.23125E-29
4.42106E-29 2.94592E-29 1.84841E-29 ... (5 Replies)
So, I have three problems that cover this subject.
First one asks me to find the number of fields in the file that contain the substring "he". I found the number of fields, but the problem I have is that they are displaying by each record. I want to add all of the records' fields together.
With... (2 Replies)