1. Shell Programming and Scripting

Hello, I have got one file with more than 120+ million records(35 GB in size). I have to extract some relevant data from file based on some parameter and generate other output file. What will be the besat and fastest way to extract the ne file. sample file format :--... (2 Replies)

2. Shell Programming and Scripting

Hi, I have a huge file say with 2000000 records. The file has 42 fields. I would like to pick randomly 1000 records from this huge file. Can anyone help me how to do this? (1 Reply)

3. Shell Programming and Scripting

Hi Forum. I was trying to search the following scenario on the forum but was not able to. Let's say that I have a very large file that has some bad data in it (for ex: 0.0015 in the 12th column) and I would like to find the line number and remove that particular line. What's the easiest... (3 Replies)

4. Shell Programming and Scripting

Hello gurus, I am new to "awk" and trying to break a large file having 4 million records into several output files each having half million but at the same time I want to keep the similar key records in the same output file, not to exist accross the files. e.g. my data is like: Row_Num,... (6 Replies)

5. Shell Programming and Scripting

I would like to print the number of records of 2 files, and divide the two numbers awk '{print NR}' file1 > output1 awk '{print NR}' file2 > output2 paste output1 output2 > output awl '{print $1/$2}' output > output_2 is there a faster way? (8 Replies)

6. Shell Programming and Scripting

Hi Freinds , I have 2 files . File 1 |nag|HYd|1|Che |esw|Gun|2|hyd |pra|bhe|3|hyd |omu|hei|4|bnsj |uer|oeri|5|uery File 2 |nag|HYd|1|Che |esw|Gun|2|hyd |uer|oi|3|uery output : (9 Replies)

7. Shell Programming and Scripting

Hello All, I have a large file, more than 50,000 lines, and I want to split it in even 5000 records. Which I can do using sed '1d;$d;' <filename> | awk 'NR%5000==1{x="F"++i;}{print > x}'Now I need to add one more condition that is not to break the file at 5000th record if the 5000th record... (20 Replies)

8. Shell Programming and Scripting

I have a file, named records.txt, containing large number of records, around 0.5 million records in format below: 28433005 1 1 3 2 2 2 2 2 2 2 2 2 2 2 28433004 0 2 3 2 2 2 2 2 2 1 2 2 2 2 ... Another file is a key file, named key.txt, which is the list of some numbers in the first column of... (5 Replies)