Sponsored Content
Top Forums Shell Programming and Scripting awk to update field file based on match Post 302974564 by Aia on Tuesday 31st of May 2016 06:47:29 PM
Old 05-31-2016
Quote:
Originally Posted by cmccabe
[...]
Code:
awk 'NR==FNR{A[$1] ; next}  $1 in A { $2 = a[1] }1' file1 file2

[...]
Code:
 gawk 'FNR==NR {A[$1]=$2; next}  $2 in A { $2=$2 "." A[$2] }1' file1 file2

This User Gave Thanks to Aia For This Post:
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Update a field in a file based on condition

Hi i am new to scripting. i have a file file.dat with content as : CONTENT_STORAGE PERCENTAGE FLAG: /storage_01 64% 0 /storage_02 17% 1 I need to update the value of FLAG for a particular CONTENT_STORAGE value I have written the following code #!/bin/sh threshold=20... (1 Reply)
Discussion started by: kichu
1 Replies

2. Shell Programming and Scripting

awk match to update contents of file

I am trying to match $1 in file1 with $2 in file2. If a match is found then $3 and $4 of file2 are copied to file1. Both files are tab-delimeted and I am getting a syntax error and would also like to update file1 in-place without creating a new file, but am not sure how. Thank you :). file1 ... (19 Replies)
Discussion started by: cmccabe
19 Replies

3. Shell Programming and Scripting

awk to update field in file based of match in another

I am trying to use awk to match two files that are tab-delimited. When a match is found between file1 $1 and file2 $4, $4 in file2 is updated using the $2 value in file1. If no match is found then the next line is processed. Thank you :). file1 uc001bwr.3 ADC uc001bws.3 ADC... (4 Replies)
Discussion started by: cmccabe
4 Replies

4. Shell Programming and Scripting

awk to update value in field based on another field

In the tab-delimeted input file below I am trying to use awk to update the value in $2 if TYPE=ins in bold, by adding the value of HRUN= in italics. In the below since in line 1 TYPE=ins the 117282541 value in $2 has 6 added because that is the value of HRUN=. Hopefully the awk is a start but I... (2 Replies)
Discussion started by: cmccabe
2 Replies

5. Shell Programming and Scripting

awk to update file based on partial match in field1 and exact match in field2

I am trying to create a cronjob that will run on startup that will look at a list.txt file to see if there is a later version of a database using database.txt as the source. The matching lines are written to output. $1 in database.txt will be in list.txt as a partial match. $2 of database.txt... (2 Replies)
Discussion started by: cmccabe
2 Replies

6. Shell Programming and Scripting

Perl to update field in file based of match to another file

In the perl below I am trying to set/update the value of $14 (last field) in file2, using the matching NM_ in $12 or $9 in file2 with the NM_ in $2 of file1. The lengths of $9 and $12 can be variable but what is consistent is the start pattern will always be NM_ and the end pattern is always ;... (4 Replies)
Discussion started by: cmccabe
4 Replies

7. Shell Programming and Scripting

awk to update value based on pattern match in another file

In the awk, thanks you @RavinderSingh13, for the help in below, hopefully it is close as I am trying to update the value in $12 of the tab-delimeted file2 with the matching value in $1 of the space delimeted file1. I have added comments for each line as well. Thank you :). awk awk '$12 ==... (10 Replies)
Discussion started by: cmccabe
10 Replies

8. Shell Programming and Scripting

awk to assign points to variables based on conditions and update specific field

I have been reading old posts and trying to come up with a solution for the below: Use a tab-delimited input file to assign point to variables that are used to update a specific field, Rank. I really couldn't find too much in the way of assigning points to variable, but made an attempt at an awk... (4 Replies)
Discussion started by: cmccabe
4 Replies

9. Shell Programming and Scripting

Update a specific field in file with Variable value based on other Key Word

I have an input file with A=xyz B=pqr I would want the value in Second Field (xyz or pqr) updated with a value present in Shell Variable based on the value passed in the first field. (A or B ) while read line do NEW_VALUE = `some functionality done on $line` If $line=First Field-... (1 Reply)
Discussion started by: infernalhell
1 Replies

10. Shell Programming and Scripting

awk to update file based on match in 3 fields

Trying to use awk to store the value of $5 in file1 in array x. That array x is then used to search $4 of file1 to find aa match (I use x to skip the header in file1). Since $4 can have multiple strings in it seperated by a , (comma), I split them and iterate througn each split looking for a match.... (2 Replies)
Discussion started by: cmccabe
2 Replies
COLORS(3)						   libbash colors Library Manual						 COLORS(3)

NAME
colors -- libbash library for setting tty colors. SYNOPSIS
colorSet <color> colorReset colorPrint [<indent>] <color> <text> colorPrintN [<indent>] <color> <text> DESCRIPTION
General colors is a collection of functions that make it very easy to put colored text on tty. The function list: colorSet Sets the color of the prints to the tty to COLOR colorReset Resets current tty color back to normal colorPrint Prints TEXT in the color COLOR indented by INDENT (without adding a newline) colorPrintN The same as colorPrint, but trailing newline is added Detailed interface description follows. Available colors: Green Red Yellow White The color parameter is non-case-sensitive (i.e. RED, red, ReD, and all the other forms are valid and are the same as Red). FUNCTIONS DESCRIPTIONS
colorSet <color> Sets the current printing color to color. colorReset Resets current tty color back to normal. colorPrint [<indent>] <color> Prints text using the color color indented by indent (without adding a newline). Parameters: <indent> The column to move to before start printing. This parameter is optional. If ommitted - start output from current cursor position. <color> The color to use. <color> The text to print. colorPrintN [<indent>] <color> The same as colorPrint, except a trailing newline is added. EXAMPLES
Printing a green 'Hello World' with a newline: Using colorSet: $ colorSet green $ echo 'Hello World' $ colorReset Using colorPrint: $ colorPrint 'Hello World'; echo Using colorPrintN: $ colorPrintN 'Hello World' AUTHORS
Hai Zaar <haizaar@haizaar.com> Gil Ran <gil@ran4.net> SEE ALSO
ldbash(1), libbash(1) Linux Epoch Linux
All times are GMT -4. The time now is 10:46 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy