Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

Help with AWK Script

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Help with AWK Script
# 1  
Old 04-14-2011
Help with AWK Script
Hello everybody,

Can someone please help me resolve this problem? I’m in my trial period and my employer has given me a task to test me and I still haven’t found the solution for my problem.
I have a csv file named masterFile1 that contains the following columns. Each line contains a computer’s properties (the file may contain more than 3 computers(Lines)). For example:

a,b,c,d,e,cpu_numb,cpu_core,cpu_model
a1,b1,c1,d1,e1,1,4,model1

a2,b2,c2,d2,e2,2,4,model1

a3,b3,c3,d3,e3,4,16,model45


...
...
  • Line 1 (computer 1) : has data a1 for the columns a, data b1 for the columns b, data c1 for columns c, d1 for columns d, e1 for columns e, 1 cpu (cpu_numb), 4 core cpu (cpu_core), and model1 for the columns cpu_model
  • Line 2 (computer 2) : has data a2 for the columns a, data b2 for the columns b, data c2 for columns c, d2 for columns d, e2 for columns e, 2 cpu (cpu_numb), 4 core cpu (cpu_core)(2 core cpu for each cpu), and model1 for the columns cpu_model
  • Line 3 (computer 3) : has data a3 for the columns a, data b3 for the columns b, data c3 for columns c, d3 for columns d, e3 for columns e, 4 cpu (cpu_numb), 16 core cpu (cpu_core)(4 core cpu for each cpu), and model45 for the columns cpu_model
The file may contain more than 3 lines (these lines are just examples).

I want a script that allows me to have an output file named masterFile2 for example that contains the following columns :

a,cpu_id,cpu_core,cpu_model
a1,1,4,model1
a2,1,2,model17
a2,2,2,model17
a3,1,4,model45
a3,2,4,model45
a3,3,4,model45
a3,4,4,model45

I want to delete the columns b,c,d,e,cpu_numb (the number of cpu in the computer) and add a new columns cpu_id that contains an ID for the cpu. For example, if we had a computer with the following datas

a,b,c,d,e,cpu_numb,cpu_core,cpu model
a2,b2,c2,d2,e2,2,4,model1



We have here 2 cpu and 4 core cpu (2 core cpu for each cpu)
The output file will contain the following columns with two lines this time because we have 2 cpu

 a,cpu_id,cpu_core,cpu_model
a2,1,2,model1
a2,2,2,model1


Each Line will have a cpu_id (example: 2 linesà2 cpu_id (2 cpu); 4 lines à4cpu_id (4 cpu).

The cpu_core will contain 2 not 4 because now we have datas for each cpu.

Another example:

Input File:

 a,b,c,d,e,cpu_numb,cpu_core,cpu model
a3,b3,c3,d3,e3,4,16,model45




We have 4 cpu with 16 cpu_core (4 cpu_core for each cpu) so we’ll have 4 cpu_id (4 lines)

Output File:
a,cpu_id,cpu_core,cpu_model
a3,1,4,model45
a3,2,4,model45
a3,3,4,model45
a3,4,4,model45


The input File contains an unknown number of lines

 a,b,c,d,e,cpu_numb,cpu_core,cpu model
a1,b1,c1,d1,e1,1,4,model1

a2,b2,c2,d2,e2,2,4,model17

a3,b3,c3,d3,e3,4,16,model45


...
...
...

And the output File will contain

 a,cpu_id,cpu_core,cpu_model
a1,1,4,model1
a2,1,2,model17
a2,2,2,model17
a3,1,4,model45
a3,2,4,model45
a3,3,4,model45
a3,4,4,model45

...
...
...
Thank you very much in advance. You will save my life.



Moderator's Comments:
Mod Comment Please use [code] and [/code] tags when posting code, data or logs etc. to preserve formatting and enhance readability, thanks. Also please refrain from overly use of formatting and colors since editing such posts is awful work and als there are people that color-blind, thanks.
Last edited by zaxxon; 04-14-2011 at 09:17 AM.. Reason: code tags
# 2  
Old 04-14-2011
Code:
cat input.txt | awk 'BEGIN{ FS=","; } ; { if (NR!=1){
for (i = 1 ; i<=$6; i++ ){
 cores = $7/$6
 print $1 "," i "," cores "," $8
}
}
}'

# 3  
Old 04-14-2011
th ubuntu terminal shows me an error message:
awk: line 1: syntax error at or near print

Thank you for your reply !

---------- Post updated at 04:54 PM ---------- Previous update was at 03:04 PM ----------

Hi |uvi|,
thank you very much it works well
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

Shell script to call and sort awk script and output

I'm trying to create a shell script that takes a awk script that I wrote and a filename as an argument. I was able to get that done but I'm having trouble figuring out how to keep the header of the output at the top but sort the rest of the rows alphabetically. This is what I have now but it is... (1 Reply)
Discussion started by: Eric7giants
1 Replies

2. Shell Programming and Scripting

awk script to call another script based on second column entry

Hi I have a text file (Input.txt) with two column entries separated by tab as given below: aaa str1 bbb str2 cccccc str3 dddd str4 eee str3 ssss str2 sdf str3 hhh str1 fff str2 ccc str3 ..... ..... ..... (1 Reply)
Discussion started by: my_Perl
1 Replies

3. UNIX for Dummies Questions & Answers

Passing shell script parameter value to awk command in side the script

I have a shell script (.sh) and I want to pass a parameter value to the awk command but I am getting exception, please assist. diff=$1$2.diff id=$2 new=new_$diff echo "My id is $1" echo "I want to sync for user account $id" ##awk command I am using is as below cat $diff |... (1 Reply)
Discussion started by: Sarita Behera
1 Replies

4. Post Here to Contact Site Administrators and Moderators

Unable to pass shell script parameter value to awk command in side the same script

Variable I have in my shell script diff=$1$2.diff id=$2 new=new_$diff echo "My id is $1" echo "I want to sync for user account $id" ##awk command I am using is as below cat $diff | awk -F'~' ''$2 == "$id"' {print $0}' > $new I could see value of $id is not passing to the awk... (0 Replies)
Discussion started by: Ashunayak
0 Replies

5. Shell Programming and Scripting

Calling shell script within awk script throws error

I am getting the following error while passing parameter to a shell script called within awk script. Any idea what's causing this issue and how to ix it ? Thanks sh: -c: line 0: syntax error near unexpected token `newline' sh: -c: line 0: `./billdatecalc.sh ... (10 Replies)
Discussion started by: Sudhakar333
10 Replies

6. 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

7. Shell Programming and Scripting

Help: How to convert this bash+awk script in awk script only?

This is the final first release of the dynamic menu generator for pekwm (WM). #!/bin/bash function param_val { awk "/^${1}=/{gsub(/^${1}="'/,""); print; exit}' $2 } echo "Dynamic {" for CF in `ls -c1 /usr/share/applications/*.desktop` do name=$(param_val Name $CF) ... (3 Replies)
Discussion started by: alexscript
3 Replies

8. Shell Programming and Scripting

Call shell script function from awk script

hi everyone i am trying to do this bash> cat abc.sh deepak() { echo Deepak } deepak bash>./abc.sh Deepak so it is giving me write simply i created a func and it worked now i modified it like this way bash> cat abc.sh (2 Replies)
Discussion started by: aishsimplesweet
2 Replies

9. Shell Programming and Scripting

want to pass parameters to awk script from shell script

Hello, I have this awk script that I want to execute by passing parameters through a shell script. I'm a little confused. This awk script removes duplicates from an input file. Ok, so I have a .sh file called rem_dups.sh #!/usr/bin/sh... (4 Replies)
Discussion started by: script_op2a
4 Replies

10. Shell Programming and Scripting

create a shell script that calls another script and and an awk script

Hi guys I have a shell script that executes sql statemets and sends the output to a file.the script takes in parameters executes sql and sends the result to an output file. #!/bin/sh echo " $2 $3 $4 $5 $6 $7 isql -w400 -U$2 -S$5 -P$3 << xxx use $4 go print"**Changes to the table... (0 Replies)
Discussion started by: magikminox
0 Replies
Login or Register to Ask a Question