Login or Register to Ask a Question and Join Our Community


UNIX for Dummies Questions & Answers

awk help

 
Thread Tools Search this Thread
Top Forums UNIX for Dummies Questions & Answers awk help
# 8  
Old 02-16-2009
Quote:
Originally Posted by d_kowalske
This might be a dumb question but I dont think I have the nawk command. Can this be run using just awk.
I am new to our system and it says nawk command not found
yes, use 'awk' instead.
# 9  
Old 02-16-2009
Quote:
Originally Posted by d_kowalske
This is the format of the file. The output can be the same. I just need to extract the entire line with "start", and a value in the fourth column, and all of the following info until the next "start" for the entire file. Im sorry this might be confusing, I am very new to this.

start -71.50000 40.37000 1981 1 7 8 1
0.00000 7.43000 9999.00000
25.00000 7.50000 9999.00000
45.00000 7.51000 9999.00000
60.00000 7.68000 9999.00000
64.00000 8.72000 9999.00000
66.00000 10.13000 9999.00000
69.00000 10.82000 9999.00000
81.00000 10.83000 9999.00000
start -71.52700 40.15500 1981 1 7 7 2
0.00000 9.51000 9999.00000
4.00000 9.39000 9999.00000
35.00000 9.39000 9999.00000
64.00000 9.46000 9999.00000
68.00000 10.69000 9999.00000
70.00000 10.94000 9999.00000
85.00000 10.98000 9999.00000

I hope this comes through alright
Once again, please use BB Codes when posting code/data samples.

Also please provide a sample of the expected output based on your sample input.
# 10  
Old 02-16-2009
Ok Ive tried to add some BB Codes, they are all new to me, I thought the bold strings could be used for searching in awk. I need the output to be identical to the input. I just only want data from 1970. There are an unknown number of lines after the line with start & 1970 I want them all if they are from 1970. Let me know if this helps clarify

start -71.50000 40.37000 1970 1 7 8 1
0.00000 7.43000 9999.00000
25.00000 7.50000 9999.00000
45.00000 7.51000 9999.00000
60.00000 7.68000 9999.00000
64.00000 8.72000 9999.00000
66.00000 10.13000 9999.00000
69.00000 10.82000 9999.00000
# 11  
Old 02-16-2009
Code:
awk '
/start.*1970/ {p=1;print $4;next}
/start/ && p {exit}
p' file

Regards
# 12  
Old 02-16-2009
ok, this is still not clear, but.....
Code:
awk '
   /^start/ && $4=="1970" {p=1}
   /^start/ && $4 !="1970" {p=0}
   p' file

# 13  
Old 02-16-2009
Quote:
Originally Posted by vgersh99
ok, this is still not clear, but.....
Code:
awk '
   /^start/ && $4=="1970" {p=1}
   /^start/ && $4 !="1970" {p=0}
   p' file

That seems to work! Sorry about all the confusion. Did I use BB codes correctly? I am mostly a windows user and never used them before.
Thanks
# 14  
Old 02-16-2009
Quote:
Originally Posted by d_kowalske
That seems to work! Sorry about all the confusion. Did I use BB codes correctly? I am mostly a windows user and never used them before.
Thanks
No, you need to use [code] code/data goes here[/code] paradigm. Reread the posted link.
 
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

awk output yields error: awk:can't open job_name (Autosys)

Good evening, Im newbie at unix specially with awk From an scheduler program called Autosys i want to extract some data reading an inputfile that comprises jobs names, then formating the output to columns for example 1. This is the inputfile: $ more MapaRep.txt ds_extra_nikira_usuarios... (18 Replies)
Discussion started by: alexcol
18 Replies

2. Shell Programming and Scripting

Pass awk field to a command line executed within awk

Hi, I am trying to pass awk field to a command line executed within awk (need to convert a timestamp into formatted date). All my attempts failed this far. Here's an example. It works fine with timestamp hard-codded into the command echo "1381653229 something" |awk 'BEGIN{cmd="date -d... (4 Replies)
Discussion started by: tuxer
4 Replies

3. Shell Programming and Scripting

Passing awk variable argument to a script which is being called inside awk

consider the script below sh /opt/hqe/hqapi1-client-5.0.0/bin/hqapi.sh alert list --host=localhost --port=7443 --user=hqadmin --password=hqadmin --secure=true >/tmp/alerts.xml awk -F'' '{for(i=1;i<=NF;i++){ if($i=="Alert id") { if(id!="") if(dt!=""){ cmd="sh someScript.sh... (2 Replies)
Discussion started by: vivek d r
2 Replies

4. Shell Programming and Scripting

HELP with AWK one-liner. Need to employ an If condition inside AWK to check for array variable ?

Hello experts, I'm stuck with this script for three days now. Here's what i need. I need to split a large delimited (,) file into 2 files based on the value present in the last field. Samp: Something.csv bca,adc,asdf,123,12C bca,adc,asdf,123,13C def,adc,asdf,123,12A I need this split... (6 Replies)
Discussion started by: shell_boy23
6 Replies

5. Shell Programming and Scripting

awk command to compare a file with set of files in a directory using 'awk'

Hi, I have a situation to compare one file, say file1.txt with a set of files in directory.The directory contains more than 100 files. To be more precise, the requirement is to compare the first field of file1.txt with the first field in all the files in the directory.The files in the... (10 Replies)
Discussion started by: anandek
10 Replies

6. Shell Programming and Scripting

Comparison and editing of files using awk.(And also a possible bug in awk for loop?)

I have two files which I would like to compare and then manipulate in a way. File1: pictures.txt 1.1 1.3 dance.txt 1.2 1.4 treehouse.txt 1.3 1.5 File2: pictures.txt 1.5 ref2313 1.4 ref2345 1.3 ref5432 1.2 ref4244 dance.txt 1.6 ref2342 1.5 ref2352 1.4 ref0695 1.3 ref5738 1.2... (1 Reply)
Discussion started by: linuxkid
1 Replies

7. Shell Programming and Scripting

Problem with awk awk: program limit exceeded: sprintf buffer size=1020

Hi I have many problems with a script. I have a script that formats a text file but always prints the same error when i try to execute it The code is that: { if (NF==17){ print $0 }else{ fields=NF; all=$0; while... (2 Replies)
Discussion started by: fate
2 Replies

8. Shell Programming and Scripting

awk: assign variable with -v didn't work in awk filter

I want to filter 2nd column = 2 using awk $ cat t 1 2 2 4 $ VAR=2 #variable worked in print $ cat t | awk -v ID=$VAR ' { print ID}' 2 2 # but variable didn't work in awk filter $ cat t | awk -v ID=$VAR '$2~/ID/ { print $0}' (2 Replies)
Discussion started by: honglus
2 Replies

9. Shell Programming and Scripting

scripting/awk help : awk sum output is not comming in regular format. Pls advise.

Hi Experts, I am adding a column of numbers with awk , however not getting correct output: # awk '{sum+=$1} END {print sum}' datafile 2.15291e+06 How can I getthe output like : 2152910 Thank you.. # awk '{sum+=$1} END {print sum}' datafile 2.15079e+06 (3 Replies)
Discussion started by: rveri
3 Replies

10. Shell Programming and Scripting

Awk problem: How to express the single quote(') by using awk print function

Actually I got a list of file end with *.txt I want to use the same command apply to all the *.txt Thus I try to find out the fastest way to write those same command in a script and then want to let them run automatics. For example: I got the file below: file1.txt file2.txt file3.txt... (4 Replies)
Discussion started by: patrick87
4 Replies
Login or Register to Ask a Question