Help in assigning values to variables from the file


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Help in assigning values to variables from the file
# 1  
Old 06-13-2011
Computer Help in assigning values to variables from the file

Hi! This might be a simple thing, but I'm struggling to assign values to variables from the file.

I've the following values stored in the file.. It consists of only two rows..
Code:
10
20

I want to assign the first row value to variable "n1" and the second row value to variable "n2"..
That is
Code:
n1=10
n2=20

How can I do this??

Last edited by abk07; 06-13-2011 at 12:09 AM..
# 2  
Old 06-13-2011
Try...
Code:
n1=$(head -1 file1)
n2=$(tail -1 file1)

This User Gave Thanks to Ygor For This Post:
# 3  
Old 06-13-2011
Quote:
Originally Posted by Ygor
Try...
Code:
n1=$(head -1 file1)
n2=$(tail -1 file1)

Thank you Smilie
# 4  
Old 06-13-2011
Code:
declare $(awk '{print "n" NR,$NF}' OFS=\= file)

Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Searching a file - and assigning responses to variables (or something)

So first: Sorry if the title is confusing... I have a script I'm writing with a file with several names in it (some other info - but it's not really pertinent...) - I want to be allow the user to delete certain records, but I ran into a problem I'm not sure how to go about fixing. If I were... (6 Replies)
Discussion started by: sabster
6 Replies

2. Shell Programming and Scripting

Read record from the text file contain multiple separated values & assign those values to variables

I have a file containing multiple values, some of them are pipe separated which are to be read as separate values and some of them are single value all are these need to store in variables. I need to read this file which is an input to my script Config.txt file name, first path, second... (7 Replies)
Discussion started by: ketanraut
7 Replies

3. Shell Programming and Scripting

Assigning values to 2 variables within for loop

Hi All, Is it possible to grep for two files and assign their names to two separate variables with for loop? I am doing the below currently: if then for fname in $( cd $dirA ; ls -tr | grep "^Ucountry_file$") do InFile=$dirA/$fname ... (4 Replies)
Discussion started by: swasid
4 Replies

4. Shell Programming and Scripting

Bash: Reading a file and assigning variables from file

I have a file that has four values on each line and I'd like to give each column a variable name and then use those values in each step of a loop. In bash, I believe you could use a while loop to do this or possibly a cat command, but I am super new to programming and I'm having trouble decoding... (2 Replies)
Discussion started by: ccorder22
2 Replies

5. Shell Programming and Scripting

Assigning fields values to different variables

Hi, I have this code: cat file.txt | awk -F, 'NR==1{print $6","$8","$10","$20","$21","$19}' > file.tmp VAR1=`cat file.tmp | cut -d "," -f1` VAR2=`cat file.tmp | cut -d "," -f2` VAR3=`cat file.tmp | cut -d "," -f3`; VAR4=`cat file.tmp | cut -d "," -f4`; VAR5=`cat... (1 Reply)
Discussion started by: Tr0cken
1 Replies

6. Shell Programming and Scripting

Perl Help - Assigning variables to text file contents

I am looking to create a perl script which will take numbers from a simple text file, convert them from decimal to hex, and then rewrite those values in the file or create a new file with the hex numbers(whichever's easier). My text document for example would be something as simple as 1312... (6 Replies)
Discussion started by: samh785
6 Replies

7. Shell Programming and Scripting

Assigning values to reference variables for a dynamic menu driven script.

How do I assign values to reference variables? I am assigning a variable name to --> $user_var Then I am trying to change its underlying variable value by $((user_var))=$user_value .. its failing,, Please let me know if there is a way to do this dynamically.. FileA.props... (5 Replies)
Discussion started by: kchinnam
5 Replies

8. UNIX for Dummies Questions & Answers

Reading from a file and assigning values

HI I have something like this in a file ABC = 1 DEF = 2 GHI = 3 JKL = 4 MNO = 5 QRS = 6 TUV = 7 I need to assign ABC to V_abc (that is to a variable) GHI to V_ghi (that is to another variable) TUV to say V_tuv ... (6 Replies)
Discussion started by: ssuresh1999
6 Replies

9. Shell Programming and Scripting

Assigning file attributes to variables

Hi, I'm trying to assign the permissions, owner and group of a file to seperate variables, but using ls -l filename | awk '{print $1 "\t" $3 "\t" $4}' gives the owner as tom.ja instead of tom.james Is there any way to expand it so i get the full name, or is there an easier way to get them... (5 Replies)
Discussion started by: olimiles
5 Replies

10. Shell Programming and Scripting

Problem in assigning values to variables

Hi, I have some problem in assigning values to variables: This is what Iam literally doing: i=0 input=test temp$i = $input In the sense, I try to assign the value in the variable input (ie., test) to another variable temp0 (since i is assigned 0, temp$i is temp0). Seems simple, but I get... (3 Replies)
Discussion started by: mohanprabu
3 Replies
Login or Register to Ask a Question