Hi, All
I have a huge file which has 450G. Its tab-delimited format is as below
x1 A 50020 1
x1 B 50021 8
x1 C 50022 9
x1 A 50023 10
x2 D 50024 5
x2 C 50025 7
x2 F 50026 8
x2 N 50027 1
:
:
Now, I want to extract a subset from this file. In this subset, column 1 is x10, column 2 is... (3 Replies)
Dear all,
I have a file lik below: n of row=420, n of letters in each row=100000 like below: there is no space between the letters.
what I want is: the 75000th letter to the 85000th letter in each row.
how to do that? thanks a lot!
... (2 Replies)
I am compiling a fortran program using gfortran and the result looks as below
I want to write a bash or awk script that will scan the information and output
only problems within a range of line numbers
Example: If I specify the file createmodl.f08, start line 1000 and end line 1100, I will... (8 Replies)
hi I am trying to write a script to count the number of files, with slightly different subset name, in a directory
for example, in directory /data, there are a subset of files that are name as follow
/data/data_1_(1to however many).txt
/data/data_2_(1 to however many).txt... (12 Replies)
Each line of the file has some words exactly same letters as of the first one. But has zero or more "_+" inserted. I am interested in those words and remove the other cases.
Example:
abcde abcd_+e abcd_+de
fghig fghigi fghi_+g
klmn klmn
I want to get this:
abcde abcd_+e
fghig fghi_+g ... (7 Replies)
Hi. I have a large data file. the first column has unique identifiers. I have approximately 5 of these files and they have varying number of columns in their rows. I need to extract ~300 of the rows in to a separate file. I'm not looking for something that would do all 5 files at once, but... (7 Replies)
I need to know if file1 is a subset of file2 i.e all the contents of file1 are present in file2 or not.
Here is how i would do it.
Read line by line file1 and grep every line in file2 in a for loop. any failing grep would means that it is not a subset.
Is there a quicker or easier way... (3 Replies)
In-order to check and print if file2 is a subset of file one i do the below.
var1=$(cat //tmp/file1 | sort -u | wc)
var2=$(cat /tmp/file2 /tmp/file1 | sort -u | wc)
if ; then
echo "file2 is a subset of file1 becoz var1 and var2 have the same values."
fi
However, i get the following error ... (1 Reply)