Sponsored Content
Top Forums Shell Programming and Scripting Compare two files using awk or sed, add values in a column if their previous fields are same Post 302369241 by ripat on Saturday 7th of November 2009 03:44:58 AM
Old 11-07-2009
Hi,

Code:
awk -F, -v OFS="," 'NR==FNR{a[$2]=$3;next}a[$2]{print $0,a[$2]}' file2 file1


Last edited by ripat; 11-07-2009 at 05:00 AM..
 

10 More Discussions You Might Find Interesting

1. 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

2. 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

3. 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

4. Shell Programming and Scripting

Compare two files based on values of fields.

Hi All, I have two files and data looks like this: File1 Contents #Field1,Field2 Dist_Center_file1.txt;21 Dist_Center_file3.txt;20 Dist_Center_file2.txt;20 File2 Contents (*** No Header ***) Dist_Center_file1.txt;23 Dist_Center_file2.txt;20 Dist_Center_file3.txt;20 I have... (4 Replies)
Discussion started by: Hangman2
4 Replies

5. Shell Programming and Scripting

How to compare the values of a column in awk in a same file and consecutive lines..

I would like to compare the values of 2nd column of consecutive lines of same file in such a way so that if the difference between first value and second value is more than 100 it should print complete line else ignore line. Input File ========== PDB 2500 RTDB 123 RTDB-EAGLE 122 VSCCP 2565... (4 Replies)
Discussion started by: manuswami
4 Replies

6. UNIX for Dummies Questions & Answers

Compare values of fields from same column with awk

Hi all ! If there is only one single value in a column (e.g. column 1 below), then return this value in the same output column. If there are several values in the same column (e.g. column 2 below), then return the different values separated by "," in the output. pipe-separated input: ... (11 Replies)
Discussion started by: lucasvs
11 Replies

7. Shell Programming and Scripting

Read column values from previous and next line using awk

Hi, I have a csv file which contains data that looks something like this: Key1 Key2 Key3 New_Key1 New_Key2 New_Key3 102 30 0 - - - 102 40 1 30 40 50 102 50 2 40 50 ... (4 Replies)
Discussion started by: Nishi_Licious
4 Replies

8. Shell Programming and Scripting

How to compare the values of a column in a same file using awk?

Dear Unix experts, I have got a file where I would like to compare the values of second column if first column is same in such a way that the difference between the values is >50. If not, I would like to discard both values. For example, my input file looks like - comp275_c0_seq2 73... (7 Replies)
Discussion started by: utritala
7 Replies

9. Shell Programming and Scripting

Compare two files column values using awk

Judi # cat File1 judi /export/home 76 judi /usr 83 judi # judi # cat File2 judi /export/home 79 judi /usr 82 judi # if COLUMN3 of File2 is greater that COLUMN3 of File1, then print File2's lines juid /export/home 79 Code tags please (2 Replies)
Discussion started by: judi
2 Replies

10. UNIX for Beginners Questions & Answers

Compare values in multiple rows in one column using awk

I would like to compare values in column 8, and grep the ones where the different is > 1, columns 1 and 2 are the key for array. Every 4 rows the records values in columns 1 and 2 changed. Then, the comparison in the column 8 need to be done for the 4 rows everytime columns 1 and 2 changed ... (4 Replies)
Discussion started by: jiam912
4 Replies
subst(n)						       Tcl Built-In Commands							  subst(n)

__________________________________________________________________________________________________________________________________________________

NAME
subst - Perform backslash, command, and variable substitutions SYNOPSIS
subst ?-nobackslashes? ?-nocommands? ?-novariables? string _________________________________________________________________ DESCRIPTION
This command performs variable substitutions, command substitutions, and backslash substitutions on its string argument and returns the fully-substituted result. The substitutions are performed in exactly the same way as for Tcl commands. As a result, the string argument is actually substituted twice, once by the Tcl parser in the usual fashion for Tcl commands, and again by the subst command. If any of the -nobackslashes, -nocommands, or -novariables are specified, then the corresponding substitutions are not performed. For example, if -nocommands is specified, command substitution is not performed: open and close brackets are treated as ordinary characters with no special interpretation. Note that the substitution of one kind can include substitution of other kinds. For example, even when the -novariables option is speci- | fied, command substitution is performed without restriction. This means that any variable substitution necessary to complete the command | substitution will still take place. Likewise, any command substitution necessary to complete a variable substitution will take place, even | when -nocommands is specified. See the EXAMPLES below. | If an error occurs during substitution, then subst will return that error. If a break exception occurs during command or variable substi- | tution, the result of the whole substitution will be the string (as substituted) up to the start of the substitution that raised the excep- | tion. If a continue exception occurs during the evaluation of a command or variable substitution, an empty string will be substituted for | that entire command or variable substitution (as long as it is well-formed Tcl.) If a return exception occurs, or any other return code is | returned during command or variable substitution, then the returned value is substituted for that substitution. See the EXAMPLES below. | In this way, all exceptional return codes are ``caught'' by subst. The subst command itself will either return an error, or will complete | successfully. EXAMPLES
When it performs its substitutions, subst does not give any special treatment to double quotes or curly braces (except within command sub- stitutions) so the script set a 44 subst {xyz {$a}} returns ``xyz {44}'', not ``xyz {$a}'' and the script | set a "p} q {r" | subst {xyz {$a}} | return ``xyz {p} q {r}'', not ``xyz {p} q {r}''. | When command substitution is performed, it includes any variable substitution necessary to evaluate the script. | set a 44 | subst -novariables {$a [format $a]} | returns ``$a 44'', not ``$a $a''. Similarly, when variable substitution is performed, it includes any command substitution necessary to | retrieve the value of the variable. | proc b {} {return c} | array set a {c c [b] tricky} | subst -nocommands {[b] $a([b])} | returns ``[b] c'', not ``[b] tricky''. | The continue and break exceptions allow command substitutions to prevent substitution of the rest of the command substitution and the rest | of string respectively, giving script authors more options when processing text using subst. For example, the script | subst {abc,[break],def} | returns ``abc,'', not ``abc,,def'' and the script | subst {abc,[continue;expr 1+2],def} | returns ``abc,,def'', not ``abc,3,def''. | Other exceptional return codes substitute the returned value | subst {abc,[return foo;expr 1+2],def} | returns ``abc,foo,def'', not ``abc,3,def'' and | subst {abc,[return -code 10 foo;expr 1+2],def} | also returns ``abc,foo,def'', not ``abc,3,def''. SEE ALSO
Tcl(n), eval(n), break(n), continue(n) KEYWORDS
backslash substitution, command substitution, variable substitution Tcl 7.4 subst(n)
All times are GMT -4. The time now is 09:49 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy