8 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I am trying to get some lines from a file i did it with while-do-loop. since the files are huge it is taking much time. now i want to make it faster.
The requirement is the file will be having 1 million lines.
The format is like below.
##transaction, , , ,blah, blah... (38 Replies)
Discussion started by: mad man
2. Shell Programming and Scripting
The dataset I'm working on is about 450G, with about 7000 colums and 30,000,000 rows.
I want to extract about 2000 columns from the original file to form a new file.
I have the list of number of the columns I need, but don't know how to extract them.
Thanks! (14 Replies)
Discussion started by: happypoker
3. Shell Programming and Scripting
Hi I have 2 files; usually the end position in the file1 is the start position in the file2 and the end position in file2 will be the start position in file1 (flanks)
Id start end
aaa1 0 3000070
aaa1 3095270 3095341
aaa1 3100822 3100894
aaa1 ... (1 Reply)
Discussion started by: anurupa777
4. UNIX for Dummies Questions & Answers
Hi, I have a file1 of many long sequences, each preceded by a unique header line. file2 is 3-columns list: headers name, start position, end position. I'd like to extract the sequence region of file1 specified in file2.
Based on a post elsewhere, I found the code:
awk... (2 Replies)
Discussion started by: pathunkathunk
5. Shell Programming and Scripting
I have a big file which I have attached here.
And, I have to fetch certain entries and arrange in 5 columns
Name Drug DAP ID disease approved or notIn the attached file data is arranged with tab separated columns in this way:
and other data is... (2 Replies)
Discussion started by: manigrover
6. Shell Programming and Scripting
I have difficulty to solve the followign problem.
The union of above... (2 Replies)
Discussion started by: phoeberunner
7. UNIX for Dummies Questions & Answers
I have a 5000 line config.log file with several "maybe" errors. Any reccomendations on finding solvable problems? (2 Replies)
Discussion started by: NeedLotsofHelp
8. UNIX for Dummies Questions & Answers
1 . Thanks everyone who read the post first.
2 . I have a log file which size is 143M , I can not use vi open it .I can not use xedit open it too.
How to view it ?
If I want to view 200-300 ,how can I implement it
3 . Thanks (3 Replies)
Discussion started by: chenhao_no1