1. Shell Programming and Scripting

Hi All, I have a table with 10 columns. Some columns(2nd,4th,5th,7th,8th and 10th) are Not Null columns. I'll get a tab-delimited file and want to check col by col and generate seperate error code for each col eg:102 if 2nd col value is NULL and 104 if 4th col value is NULL so on... I am a... (7 Replies)

2. UNIX for Dummies Questions & Answers

Hi All, I have a file with 10 columns and get the required data for nine columns properly except 8th. In 8th column i have both NULL and NON NULL values...i.e certain records have values for all the columns including 8th column and certain records have 8th column as NULL.My requisite is,without... (20 Replies)

3. Shell Programming and Scripting

Hi All, I am another biologist attempting to parse a large txt file containing several million lines like: tucosnp 56762 T Y 228 228 60 23 .CcCcc,,..c.c,cc,,.C... What I need to do is get the frequency of periods (.) plus commas (,) in column 9, and populate this number into another... (1 Reply)

4. Shell Programming and Scripting

Hi, everyone I have a requirement as following: source file 1, abc, def, caaa 2, , cde, aaa 3, bcd, , adefefg I need find columns which contains null value, in above example, I need get two rows 2, , cde, aaa 3, bcd, , adefefg anybody has idea how to achive this ... (5 Replies)

5. Shell Programming and Scripting

Hi, gurus, I need remove lines in a file which contains null value in certain column eg. 123, ,abc,def,cde 234,abc,cde,def 456,cde, ,bcd in this file I need remove lines which second column contains null. expected result: 234,abc,cde,def 456,cde, ,bcd :wall: Thanks in advance (2 Replies)

6. Shell Programming and Scripting

hello! i need a little help from you :) ... i need to split a file into separate files depending on two conditions using scripting. The file has no delimiters. The conditions are col 17 = "P" and col 81 = "*", this will go to one output file; col 17 = "R" and col 81 = " ". Here is an example. ... (3 Replies)

7. Shell Programming and Scripting

hi, I had a small question.I had a file from which i need to extract data. I have written the below script to check if the file exists and if it exists extract requierd columns from the file. IFILE=/home/home01/Report_1.csv OFILE=/home/home01/name.csv.out1 if #Checks if file exists... (1 Reply)

8. UNIX for Dummies Questions & Answers

Hello, I have two files, f1 and f2. f1 has 5 columns like so: a b c d 154 e f g h 365 ..... f2 has two columns, the first column contains the name of the above file and second column contains a constant which is to be used for division. e.g. file1 56 I want to divide the 5th... (2 Replies)

9. Shell Programming and Scripting

hi Gurus, I need find the null column in a file. my file like below abc, ,cde,def abc,ded,cdd,def abc, ,ddd,ccd aaa,bbb,ccc,ddd basic, I need to find the lines which second column is null Thanks in advance (3 Replies)

10. UNIX for Dummies Questions & Answers

Hi, I have a huge list of archives (.gz). Each archive is about 40MB. A file is generated every minute so if I want to analyze the data for 1 hour I get already 60 files for example. These are text files, ';' separated, each line having about 300 fields (columns). What I need to do is to... (11 Replies)