Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

setting a shell script variable in awk

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting setting a shell script variable in awk
# 1  
Old 09-06-2011
setting a shell script variable in awk
The following is part of a larger shell script

Code:
grep -v "Col1" my_test.log | grep -v "-" | awk  '$5 == "Y" {print $1}'

instead of printing, can I set set $1 to a variable that the rest of the shell script can read?

if $5 == Y, I want to call another shell script and pass $1 as a variable.
# 2  
Old 09-06-2011
awk -v sets a variable
Such that...
I assign variable parm to the result of a calculation
Show that it is set
Then print out that "6th" column in an awk statement
*Note that I set col (within awk) to be equal to variable parm
Code:
$ parm=$(ls sample*.txt | wc -l)

$ echo $parm
6

$ head sample3.txt | awk -v col=$parm '{print $col}'
46.6432798439
48.8478948517
45.8022601455
48.780669145
47.7312017846
41.7389244255
54.1498530714
X
41.709838673
41.4599808018

Are you trying to do something like this?
Without seeing your file(s), it is hard to understand what you are trying to do.
# 3  
Old 09-06-2011
If you use awk instead of grep then you can set $1 into a local variable:

Code:
new_var=$(awk '!/Col1/ && !/-/ && $5=="Y"{print $1}' my_test.log)

Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

How can I assign awk's variable to shell script's variable?

I have the following script, and I want to assign the output ($10 and $5) from awk to N and L: grdinfo data.grd | awk '{print $10,$5}'| read N L output from gridinfo data.grd is: data.grd 50 100 41 82 -2796 6944 0.016 0.016 3001 2461. where N and L is suppose to be 3001 and 100. I use... (8 Replies)
Discussion started by: geomarine
8 Replies

2. Shell Programming and Scripting

Unable to pass shell script variable to awk command in same shell 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 | awk... (2 Replies)
Discussion started by: Ashunayak
2 Replies

3. Shell Programming and Scripting

using awk for setting variable but change the output of this variable within awk

Hi all, Hope someone can help me out here. I have this BASH script (see below) My problem lies with the variable path. The output of the command find will give me several fields. The 9th field is the path. I want to captured that and the I want to filter this to a specific level. The... (6 Replies)
Discussion started by: Cowardly
6 Replies

4. Shell Programming and Scripting

Setting environment variable using shell script

Hi All, I'm trying to write an menu driven program to automate some functions which involve loging to multiple hosts. The hosts can differ for every use, so I thought I would use an config file to get the hostnames. Now I need to set those values in the config file to environment variable to... (6 Replies)
Discussion started by: arun_maffy
6 Replies

5. Shell Programming and Scripting

assign awk's variable to shell script's variable?

Dear All, we have a command output which looks like : Total 200 queues in 30000 Kbytes and we're going to get "200" and "30000" for further process. currently, i'm using : numA=echo $OUTPUT | awk '{print $2}' numB=echo $OUTPUT | awk '{print $5}' my question is : can I use just one... (4 Replies)
Discussion started by: tiger2000
4 Replies

6. Shell Programming and Scripting

Setting environment variable on a remote solaris machine using shell script

Hi, I am trying to set environment variable on a remote machine. I want to do it by running a shell script Here's what I am doin rsh <remote-hostname> -l root "cd /opt/newclient; . ./setp.sh" In setp.sh, I have ############################# cd ../newlib; export... (1 Reply)
Discussion started by: eamani_sun
1 Replies

7. Shell Programming and Scripting

pass variable from awk to shell script

Hello Experts, Actually I was searching for a solution here in this forum , but didn't get what exactly I want . Is this possible to do in awk ? I am trying to do some thing like below in ksh script . Upto my knowledge I can pass shell script to awk with "-v " option. But I... (3 Replies)
Discussion started by: user_prady
3 Replies

8. Shell Programming and Scripting

Is it possible to pass variable from awk to shell script

Hello experts, can I return a value from gawk to a shell script ? My script as follows, #Here I want the num value to shell script so that I can use later gawk ' { split($0,num,","); print num }' gawk -v no=$number '{print no}' file1 ... (3 Replies)
Discussion started by: user_prady
3 Replies

9. UNIX for Dummies Questions & Answers

How to pass Shell script variable to awk

Hi, I have a shell script with an ambedded awk script. i need to pass a script variable to the awk script. Please help. Thanks in advance Himani (3 Replies)
Discussion started by: HIMANI
3 Replies

10. Shell Programming and Scripting

passing awk variable to the shell script

hi; i have a file containing lines like: 1|1069108123|96393669788|00963215755711|2|0|941||;serv:Pps6aSyria;first:0;bear i want to extract the second, third and fourth record of each line and store it in a file ";" seperated this is what i wrote while read line do ... (3 Replies)
Discussion started by: bcheaib
3 Replies
Login or Register to Ask a Question