Read in 2-column CSV, output many files based on field Post: 302740161

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Read CSV column value based on column name

Hi All, I am newbie to Unix I ve got assignment to work in unix can you please help me in this regard There is a sample CSV file "Username", "Password" "John1", "Scot1" "John2", "Scot2" "John3", "Scot3" "John4", "Scot4" If i give the column name as Password and row number as 4 the...

2. Shell Programming and Scripting

extract data in a csv file based on a certain field.

I have a csv file that I need to extract some data from depending on another field after reading info from another text file. The text file would say have 592560 in it. The csv file may have some data like so Field 1 Field2 Field3 Field4 Field5 Field6 20009756 1 ...

3. Shell Programming and Scripting

Merging CSV fields based on a common field

Hi List, I have two files. File1 contains all of the data I require to be processed, and I need to add another field to this data by matching a common field in File2 and appending a corresponding field to the data in File1 based on the match... So: File 1:...

4. Shell Programming and Scripting

Matching and Merging csv data fields based on a common field

Dear List, I have a file of csv data which has a different line per compliance check per host. I do not want any omissions from this csv data file which looks like this: date,hostname,status,color,check 02-03-2012,COMP1,FAIL,Yellow,auth_pass_change...

5. Shell Programming and Scripting

awk read column csv and search in other csv

hi, someone to know how can i read a specific column of csv file and search the value in other csv columns if exist the value in the second csv copy entire row with all field in a new csv file. i suppose that its possible using awk but i m not expertise thanks in advance

6. Shell Programming and Scripting

Pick the column value based on another column from .csv file

My scenario is that I need to pick value from third column based on fourth column value, if fourth column value is 1 then first value of third column.Third column (2|3|4|6|1) values are cancatenated. Main imp point, in my .csv file, third column is having price value with comma (1,20,300), it has...

7. Shell Programming and Scripting

Read text between regexps and write into files based on a field in the text

Hi, I have a huge file that has data something like shown below: huge_file.txt start regexp Name=Name1 Title=Analyst Address=Address1 Department=Finance end regexp some text some text start regexp Name=Name2 Title=Controller Address=Address2 Department=Finance end regexp

8. Shell Programming and Scripting

Match columns from two csv files and update field in one of the csv file

Hi, I have a file of csv data, which looks like this: file1: 1AA,LGV_PONCEY_LES_ATHEE,1,\N,1,00020460E1,0,\N,\N,\N,\N,2,00.22335321,0.00466628 2BB,LES_POUGES_ASF,\N,200,200,00006298G1,0,\N,\N,\N,\N,1,00.30887539,0.00050312...

9. Shell Programming and Scripting

Get maximum per column from CSV file, based on date column

Hello everyone, I am using ksh on Solaris 10 and I'm gathering data in a CSV file that looks like this: 20170628-23:25:01,1,0,0,1,1,1,1,55,55,1 20170628-23:30:01,1,0,0,1,1,1,1,56,56,1 20170628-23:35:00,1,0,0,1,1,2,1,57,57,2 20170628-23:40:00,1,0,0,1,1,1,1,58,58,2...

10. UNIX for Beginners Questions & Answers

Select and copy .csv files based on row and column number

Dear UNIX experts, I'm a command line novice working on a Macintosh computer (Bash shell) and have neither found advice that is pertinent to my problem on the internet nor in this forum. I have hundreds of .csv files in a directory. Now I would like to copy the subset of files that contains...

LEARN ABOUT OPENDARWIN

uniq

UNIQ(1) 						    BSD General Commands Manual 						   UNIQ(1)

NAME

     uniq -- report or filter out repeated lines in a file

SYNOPSIS

     uniq [-c | -d | -u] [-i] [-f num] [-s chars] [input_file [output_file]]

DESCRIPTION

     The uniq utility reads the specified input_file comparing adjacent lines, and writes a copy of each unique input line to the output_file.	If
     input_file is a single dash ('-') or absent, the standard input is read.  If output_file is absent, standard output is used for output.  The
     second and succeeding copies of identical adjacent input lines are not written.  Repeated lines in the input will not be detected if they are
     not adjacent, so it may be necessary to sort the files first.

     The following options are available:

     -c      Precede each output line with the count of the number of times the line occurred in the input, followed by a single space.

     -d      Only output lines that are repeated in the input.

     -f num  Ignore the first num fields in each input line when doing comparisons.  A field is a string of non-blank characters separated from
	     adjacent fields by blanks.  Field numbers are one based, i.e. the first field is field one.

     -s chars
	     Ignore the first chars characters in each input line when doing comparisons.  If specified in conjunction with the -f option, the
	     first chars characters after the first num fields will be ignored.  Character numbers are one based, i.e. the first character is
	     character one.

     -u      Only output lines that are not repeated in the input.

     -i      Case insensitive comparison of lines.

DIAGNOSTICS

     The uniq utility exits 0 on success, and >0 if an error occurs.

COMPATIBILITY

     The historic +number and -number options have been deprecated but are still supported in this implementation.

SEE ALSO

     sort(1)

STANDARDS

     The uniq utility is expected to be IEEE Std 1003.2 (``POSIX.2'') compatible.

HISTORY

     A uniq command appeared in Version 3 AT&T UNIX.

BSD
								   June 6, 1993 							       BSD