Sponsored Content
Top Forums Shell Programming and Scripting Read column values from previous and next line using awk Post 302709255 by elixir_sinari on Wednesday 3rd of October 2012 02:49:22 AM
Old 10-03-2012
Try (I've assumed no header. If you want to handle the header, a slight modification is needed. That is left as an exercise for you Smilie):
Code:
awk 'FNR==NR{a[$1]=(a[$1])?(a[$1] "|" $0):$0;next}
{c[$1]++}
c[$1]==1{$4=$5=$6="-";print}
c[$1]>1{
n=split(a[$1],t,"|")
if(n==c[$1])
 n3=t[1]
else
 n3=t[c[$1]+1]
split(t[c[$1]-1],new1," ")
split(n3,new3," ")
print $0,new1[2],$2,new3[2]
}' file file


Last edited by elixir_sinari; 10-03-2012 at 04:33 AM..
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

how to read the column and print the values under that column

hi all:b:, how to read the column and print the values under that column ...?? file1 have something like this cat file1 ======= column1, column2,date,column3,column4..... 1, 23 , 12/02/2008,...... 2, 45, 14/05/2008,..... 3, 56, 16/03/2008,..... cat file2 =======... (6 Replies)
Discussion started by: gemini106
6 Replies

2. Shell Programming and Scripting

read column values one after another

hi, Can some one help me how to retrieve column values row by row My requirement is like below : I have a text file having comma seperated values of these records . OName OType SrcDB Sschema targetdb TSchema Load Dataype processY/N aa Table a e i m Y db2 y aa index b c d e N sql N ... (4 Replies)
Discussion started by: sailaja_80
4 Replies

3. UNIX for Advanced & Expert Users

Compare two files using awk or sed, add values in a column if their previous fields are same

Hi All, I have two files file1: abc,def,ghi,5,jkl,mno pqr,stu,ghi,10,vwx,xyz cba,ust,ihg,4,cdu,oqw file2: ravi,def,kishore ramu,ust,krishna joseph,stu,mike I need two output files as follows In my above example, each row in file1 has 6 fields and each row in file2 has 3... (1 Reply)
Discussion started by: yerruhari
1 Replies

4. UNIX for Dummies Questions & Answers

Compare two files using awk or sed, add values in a column if their previous fields are same

Hi All, I have two files file1: abc,def,ghi,5,jkl,mno pqr,stu,ghi,10,vwx,xyz cba,ust,ihg,4,cdu,oqw file2: ravi,def,kishore ramu,ust,krishna joseph,stu,mike I need two output files as follows In my above example, each row in file1 has 6 fields and each row in file2 has 3... (1 Reply)
Discussion started by: yerruhari
1 Replies

5. Shell Programming and Scripting

eAdd two fields in a column if their previous field values are same

Hi All, I have two files file1: abc,def,ghi,5,jkl,mno pqr,stu,ghi,10,vwx,xyz cba,ust,ihg,4,cdu,oqw file2: ravi,def,kishore ramu,ust,krishna joseph,stu,mike I need two output file as follows If field3 in file1 is same as field3 in the next line then the field4 should add... (1 Reply)
Discussion started by: yerruhari
1 Replies

6. Shell Programming and Scripting

Compare two files using awk or sed, add values in a column if their previous fields are same

Hi All, I have two files file1: abc,def,ghi,5,jkl,mno pqr,stu,ghi,10,vwx,xyz cba,ust,ihg,4,cdu,oqw file2: ravi,def,kishore ramu,ust,krishna joseph,stu,mike I need two output files as follows In my above example, each row in file1 has 6 fields and each row in file2 has 3... (3 Replies)
Discussion started by: yerruhari
3 Replies

7. Shell Programming and Scripting

AWK: read values from file1; search for values in file2

I have read another post about this issue and am wondering how to adapt it to my own, much simpler, issue. I have a file of user IDs like so: 333333 321321 546465 ...etc I need to take each number and use it to print records wherein the 5th field matches the user ID pulled from the... (2 Replies)
Discussion started by: Bubnoff
2 Replies

8. Shell Programming and Scripting

Sed Comparing Parenthesized Values In Previous Line To Current Line

I am trying to delete lines in archived Apache httpd logs Each line has the pattern: <ip-address> - - <date-time> <document-request-URL> <http-response> <size-of-req'd-doc> <referring-document-URL> This pattern is shown in the example of 6 lines from the log in the code box below. These 6... (1 Reply)
Discussion started by: Proteomist
1 Replies

9. Shell Programming and Scripting

awk file to read values from Db2 table replacing hard coded values

Hi, I want to replace a chain of if-else statement in an old AWK file with values from Db2 table or CSV file. The part of code is below... if (start_new_rec=="true"){ exclude_user="false"; user=toupper($6); match(user, "XXXXX."); if (RSTART ==2 ) { ... (9 Replies)
Discussion started by: asandy1234
9 Replies

10. Shell Programming and Scripting

Insert data in first column(if blank) from previous line first column

Dear Team I need to insert field(which is need to taken from previous line's first field) in first column if its blank. I had tried using sed but not find the way. Detail input and output file as below. Kindly help for same. INPUT: SCGR SC DEV DEV1 NUMDEV DCP ... (7 Replies)
Discussion started by: jaydeep_sadaria
7 Replies
SPLIT(1)						      General Commands Manual							  SPLIT(1)

NAME
split - split a file into pieces SYNOPSIS
split [ option ... ] [ file ] DESCRIPTION
Split reads file (standard input by default) and writes it in pieces of 1000 lines per output file. The names of the output files are xaa, xab, and so on to xzz. The options are -n Split into n-line pieces. -e expression File divisions occur at each line that matches a regular expression; see regexp(6). Multiple -e options may appear. If a subex- pression of expression is contained in parentheses (...), the output file name is the portion of the line which matches the subex- pression. -f stem Use stem instead of x in output file names. -s suffix Append suffix to names identified under -e. -x Exclude the matched input line from the output file. -i Ignore case in option -e; force output file names (excluding the suffix) to lower case. SOURCE
/sys/src/cmd/split.c SEE ALSO
sed(1), awk(1) grep(1), regexp(6) SPLIT(1)
All times are GMT -4. The time now is 07:48 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy