Sponsored Content
Top Forums Shell Programming and Scripting setting a shell script variable in awk Post 302553078 by joeyg on Tuesday 6th of September 2011 04:17:52 PM
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.
 

10 More Discussions You Might Find Interesting

1. 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

2. 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

3. 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

4. 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

5. 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

6. 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

7. 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

8. 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

9. 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

10. 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
SCRIPT(1)						    BSD General Commands Manual 						 SCRIPT(1)

NAME
script -- make typescript of terminal session SYNOPSIS
script [-adfpqr] [-c command] [file] DESCRIPTION
script makes a typescript of everything printed on your terminal. It is useful for students who need a hardcopy record of an interactive session as proof of an assignment, as the typescript file can be printed out later with lpr(1). If the argument file is given, script saves all dialogue in file. If no file name is given, the typescript is saved in the file typescript. Option: -a Append the output to file or typescript, retaining the prior contents. -c command Run the named command instead of the shell. Useful for capturing the output of a program that behaves differently when associated with a tty. -d When playing back a session with the -p flag, don't sleep between records when playing back a timestamped session. -f Flush output after each write. This is useful for watching the script output in real time. -p Play back a session recorded with the -r flag in real time. -q Be quiet, and don't output started and ended lines. -r Record a session with input, output, and timestamping. The script ends when the forked shell exits (a control-D to exit the Bourne shell (sh(1)), and exit, logout or control-d (if ignoreeof is not set) for the C-shell, csh(1)). Certain interactive commands, such as vi(1), create garbage in the typescript file. script works best with commands that do not manipulate the screen, the results are meant to emulate a hardcopy terminal. ENVIRONMENT
The following environment variable is used by script: SHELL If the variable SHELL exists, the shell forked by script will be that shell. If SHELL is not set, the Bourne shell is assumed. (Most shells set this variable automatically). SEE ALSO
csh(1) (for the history mechanism). HISTORY
The script command appeared in 3.0BSD. BUGS
script places everything in the log file, including linefeeds and backspaces. This is not what the naive user expects. BSD
October 17, 2009 BSD
All times are GMT -4. The time now is 04:20 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy