Sponsored Content
Top Forums Shell Programming and Scripting Find for line with not null values at nth place in pipe delimited file Post 302763867 by manikms on Wednesday 30th of January 2013 03:11:47 PM
Old 01-30-2013
Linux Find for line with not null values at nth place in pipe delimited file

Hi,

I am trying to find the lines in a pipe delimited file where 11th column has not null values. Any help is appreciated. Need help asap please.

thanks in advance.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Grep for NULL in a pipe delimited file

hi, How can I check for a field in a pipe-delimited file having a NULL value in Unix using a grep command or any other command. Please reply (5 Replies)
Discussion started by: sureshg_sampat
5 Replies

2. Shell Programming and Scripting

count of null in pipe delimited txt file

Hi, I have a pipe delimited txt file which contains 17 fields per line/row. 16th field contains email id. I want to count the number of lines/rows that contains null in the 16th field. Plz find attached example data file. I'm looking for a command line/script which achieves this. ... (5 Replies)
Discussion started by: Sriranga
5 Replies

3. Shell Programming and Scripting

how to find third(nth) word in all line from a file

For example i'm having the below contents in a file: expr is great when you want to split a string into just two parts. The .* also makes expr good for skipping a variable number of words when you don't know how many words a string will have. But expr is lousy for getting, say, the fourth word... (2 Replies)
Discussion started by: bangarukannan
2 Replies

4. Shell Programming and Scripting

how to Insert values in multiple lines(records) within a pipe delimited text file in specific cols

this is Korn shell unix. The scenario is I have a pipe delimited text file which needs to be customized. say for example,I have a pipe delimited text file with 15 columns(| delimited) and 200 rows. currently the 11th and 12th column has null values for all the records(there are other null columns... (4 Replies)
Discussion started by: vasan2815
4 Replies

5. UNIX for Dummies Questions & Answers

find string and get the rest of the line in a pipe delimited file

Hi friends, I have a file where I should search for a string and get the rest of the line but without the delimiter using awk. for example I have the series of string in a file: input_string.txt bbb ccc aaa and the mapping file looks like this. mapping.txt aaa|12 bbb|23 ccc|43... (11 Replies)
Discussion started by: kokoro
11 Replies

6. Shell Programming and Scripting

Using AWK to find top Nth values in Nth column

I have an awk script to find the maximum value of the 2nd column of a 2 column datafile, but I need to find the top 5 maximum values of the 2nd column. Here is the script that works for the maximum value. awk 'BEGIN { subjectmax=$1 ; max=0} $2 >= max {subjectmax=$1 ; max=$2} END {print... (3 Replies)
Discussion started by: ncwxpanther
3 Replies

7. Shell Programming and Scripting

Replace pipe delimited column string to null

Hi All, I have a large dat file where each lines are pipe delimited values. I need to parse the file depending on the request. For example: sometimes I have told to remove all the values in the 7th column (this case remove values '3333' only from the first line and '3543' from the second line)... (4 Replies)
Discussion started by: express14
4 Replies

8. UNIX for Dummies Questions & Answers

Need to convert a pipe delimited text file to tab delimited

Hi, I have a rquirement in unix as below . I have a text file with me seperated by | symbol and i need to generate a excel file through unix commands/script so that each value will go to each column. ex: Input Text file: 1|A|apple 2|B|bottle excel file to be generated as output as... (9 Replies)
Discussion started by: raja kakitapall
9 Replies

9. UNIX for Dummies Questions & Answers

Check for not null column in a pipe delimited file

Hi, I have a requirement where I have to check whether the mandatory columns in a pipe delimited file is null and print error message. For eg, I have to check if the 3rd,5th,6th,7th and 8th column are null and print the message "<column name> is null". The data file will have aroung 100,000... (6 Replies)
Discussion started by: reshma15193
6 Replies

10. Shell Programming and Scripting

How to remove new line characters from data rows in a Pipe delimited file?

I have a file as below Emp1|FirstName|MiddleName|LastName|Address|Pincode|PhoneNumber 1234|FirstName1|MiddleName2|LastName3| Add1 || ADD2|123|000000000 2345|FirstName2|MiddleName3|LastName4| Add1 || ADD2| 234|000000000 OUTPUT : ... (1 Reply)
Discussion started by: styris
1 Replies
PIPE(2) 							System Calls Manual							   PIPE(2)

NAME
pipe - create an interprocess channel SYNOPSIS
#include <u.h> #include <libc.h> int pipe(int fd[2]) DESCRIPTION
Pipe creates a buffered channel for interprocess I/O communication. Two file descriptors are returned in fd. Data written to fd[1] is available for reading from fd[0] and data written to fd[0] is available for reading from fd[1]. After the pipe has been established, cooperating processes created by subsequent fork(2) calls may pass data through the pipe with read and write calls. The bytes placed on a pipe by one write are contiguous even if many processes are writing. Write boundaries are preserved: each read terminates when the read buffer is full or after reading the last byte of a write, whichever comes first. The number of bytes available to a read(2) is reported in the Length field returned by fstat or dirfstat on a pipe (see stat(2)). When all the data has been read from a pipe and the writer has closed the pipe or exited, read(2) will return 0 bytes. Writes to a pipe with no reader will generate a note sys: write on closed pipe. SOURCE
/sys/src/libc/9syscall SEE ALSO
intro(2), read(2), pipe(3) DIAGNOSTICS
Sets errstr. BUGS
If a read or a write of a pipe is interrupted, some unknown number of bytes may have been transferred. When a read from a pipe returns 0 bytes, it usually means end of file but is indistinguishable from reading the result of an explicit write of zero bytes. PIPE(2)
All times are GMT -4. The time now is 11:16 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy