Sponsored Content
Top Forums Shell Programming and Scripting Add comment on last line if found match Post 303009345 by Don Cragun on Wednesday 13th of December 2017 03:42:30 AM
Old 12-13-2017
Quote:
Originally Posted by kttan
thank you for very details explanation.

sorry i'm still have 1 newb question.

is that able to skip awk and move to other awk if meet condition ?
because im still new and very confuse on those syntax, now i'm doing multiple awk to let it work.

i want something like

Code:
  if(A == 1) then 
     awk '{content}' 
  else 
     awk '{content}'
  end if

currently i'm use the method is write a file with some information and let next awk code use as variable, and then only remove the file.
Moderator's Comments:
Mod Comment Please use CODE tags when displaying sample input, output, and code segments as required by forum rules.
I don't know what:
Quote:
is that able to skip awk and move to other awk if meet condition ?
means. I have no idea why you would want to run two seemingly identical awk programs instead of using A == 1 as a condition for the single action (named content in your pseudo-code) in both of your awk scripts.

You said that you're writing a file and let the next awk use something unspecified as a variable, but your code doesn't show that any variables or files are being passed to either of the awk scripts in your pseudo-code.

If there is something in the code I suggested that you don't understand, I'll be happy to try to answer specific questions. If you're just saying that my code is too complex and you don't want to try to understand what it is doing, I'm sorry that I have wasted your time and mine trying to help you.
This User Gave Thanks to Don Cragun For This Post:
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Need to add a comment line in a text file

Hi I need to add a comment line at the begining of a text file. The scenario is given below. 1. The number of servers that needs to be updated is around 80 2. The location of the text file in all the servers are the same including the file name. 3. The comment has to be added at the very... (2 Replies)
Discussion started by: orakhan
2 Replies

2. Shell Programming and Scripting

if match found go to a particular line in perl

Hello Experts, I am newbie to perl, just curious to know how to do the following in perl. suppose I ve a txt file like below. when it founds "*Main Start" Then go to "*Main End,,,,,,,," patteren and just collect the number from the previous line of "*Main End,,,,,,," pattern . In my... (17 Replies)
Discussion started by: user_prady
17 Replies

3. Shell Programming and Scripting

Need one-liner to look for a line and add it if not found

I need a good one-liner to look in a specific text file for a line of text and if it's not found, add it at the bottom of the file. Perl, sed, not particular, whatever works. To make matters worse, the line of text is in a config script with lots of special characters and needs lots of... (3 Replies)
Discussion started by: brendaT
3 Replies

4. Shell Programming and Scripting

help with script to send email and if subject line match is found

Help with script that will check log, then find a match is found, add that as the subject line. 1. The script will always run as a deamon.. and scan the event.log file 2. when a new 101 line is added to the event.log file, have the script check position 5,6 and 7 which is the job name, which... (2 Replies)
Discussion started by: axdelg
2 Replies

5. Shell Programming and Scripting

add line and remove comment in some script

Hi, i need some help. i am not sure about my idea. I have a script directory under my home directory,which has a lot of scripts in it. These are some names of the scripts in /axxhome/prdv/script aly300.sh axt300.sh arv300.sh clp300.sh ctth300.sh aly400.sh axt400.sh arv400.sh... (6 Replies)
Discussion started by: debu000
6 Replies

6. UNIX for Dummies Questions & Answers

awk display the match and 2 lines after the match is found.

Hello, can someone help me how to find a word and 2 lines after it and then send the output to another file. For example, here is myfile1.txt. I want to search for "Error" and 2 lines below it and send it to myfile2.txt I tried with grep -A but it's not supported on my system. I tried with awk,... (4 Replies)
Discussion started by: eurouno
4 Replies

7. UNIX for Dummies Questions & Answers

Display n lines after match found and other line

I have a file like this DoctorName Address1 Address2 DOB InsuredName Address1 Address2 DOB PatientName Address1 Address2 DOB ClaimNo1 DoctorName Address1 Address2 DOB InsuredName (2 Replies)
Discussion started by: nsuresh316
2 Replies

8. Shell Programming and Scripting

Displaying text till pattern match found in a line

Hi All, From the below line if we want to display all the text till found pattern dot/. I was trying with the below code but couldn't able to print text before the pattern. it display texts which is found after pattern. awk '/assed/{print;getline;print}' file_name | sed 's/^*. *//' input... (4 Replies)
Discussion started by: Optimus81
4 Replies

9. Shell Programming and Scripting

How to print the entire line if the mentioned match is found?

Hello Everyone, I have a file with 5 fields in each line just like mentioned below. Also the 4th field is time elapsed(hh:mm:ss) since the process is running xyz abc status 23:00:00 idle abc def status 24:00:00 idle def gji status 27:00:02 idle fgh gty status 00:00:00 idle Here I... (8 Replies)
Discussion started by: rahul2662
8 Replies

10. UNIX for Beginners Questions & Answers

Modify text file if found multiple pattern match for every line.

Looking for help, i have input file like below and want to modify to expected output, if can without create additional file, hope can direct modify it. have 2 thing need do. 1st is adding a word (testplan generation off) after ! ! IPG: Tue Aug 07 14:31:17 2018 2nd is adding... (16 Replies)
Discussion started by: kttan
16 Replies
All times are GMT -4. The time now is 07:58 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy