Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

A better way to assign values to variables - shell

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting A better way to assign values to variables - shell
# 8  
Old 09-07-2014
Quote:
Originally Posted by SkySmart
yes. something like this. but how do u specify the delimiter if it is something other than space?
maybe awk can be used here? the goal here is to be able to do this without calling two commands.
Then use 'IFS' to give you a helping hand:-
(Store the default 'IFS' first and restore when finished.)
Code:
Last login: Sun Sep  7 09:46:23 on console
AMIGA:barrywalker~> ifs_str="$IFS"
AMIGA:barrywalker~> IFS=" ,:[]"
AMIGA:barrywalker~> VAL4=($(echo "7 3,2:38[3]4567"))
AMIGA:barrywalker~> echo "${VAL4[0]}"
7
AMIGA:barrywalker~> echo "${VAL4[1]}"
3
AMIGA:barrywalker~> echo "${VAL4[2]}"
2
AMIGA:barrywalker~> echo "${VAL4[3]}"
38
AMIGA:barrywalker~> echo "${VAL4[4]}"
3
AMIGA:barrywalker~> echo "${VAL4[5]}"
4567
AMIGA:barrywalker~> IFS="$ifs_str"
AMIGA:barrywalker~> _

This User Gave Thanks to wisecracker For This Post:
SkySmart
# 9  
Old 09-07-2014
i was looking for something more along the lines of this:

Code:
#!/bin/sh

NAME[0]="Zara"
NAME[1]="Qadir"
NAME[2]="Mahnaz"
NAME[3]="Ayan"
NAME[4]="Daisy"
echo "First Index: ${NAME[0]}"
echo "Second Index: ${NAME[1]}"

echo "First Method: ${NAME[*]}"
echo "Second Method: ${NAME[@]}"

this code should work on any unix system that exist. i would like to know if it is at all possible to modify it a bit to do what i want.
# 10  
Old 09-07-2014
Quote:
Originally Posted by SkySmart
i was looking for something more along the lines of this:

Code:
#!/bin/sh

NAME[0]="Zara"
NAME[1]="Qadir"
NAME[2]="Mahnaz"
NAME[3]="Ayan"
NAME[4]="Daisy"
echo "First Index: ${NAME[0]}"
echo "Second Index: ${NAME[1]}"

echo "First Method: ${NAME[*]}"
echo "Second Method: ${NAME[@]}"

this code should work on any unix system that exist. i would like to know if it is at all possible to modify it a bit to do what i want.
I repeat, /bin/sh on Solaris system is a 1980's vintage Bourne shell. That shell DOES NOT support array variables. The code above will not work on any UNIX system that has a Bourne shell as /bin/sh. Even a shell that meets all POSIX and Single UNIX Specification requirements for a shell is not required to support arrays.

You asked for something that would work on any UNIX or Linux system and I gave you a way to do that. If you insist on using arrays, your script will not be portable to nearly as any systems.
These 2 Users Gave Thanks to Don Cragun For This Post:
SkySmart wisecracker
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Assign Unknown Values to Variables

i have a program that spits out a certain number of values. i dont know the number of values. they can be 4, 10, 7, 20, no idea. but, i want to be able to assign each of the value returned by this program to a variable. in the latest instance, the program gave the following 6 values: 4... (8 Replies)
Discussion started by: SkySmart
8 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

Unable to read assign values to two variables in while loop

I am trying to read a input file which has two columns separated by space Input file server1 server2 server3 server4 server5 server6 When i execute the below while code it reads line by line and a and b variables are able to successfully fetch the values while read a b do echo "$a" echo... (5 Replies)
Discussion started by: chidori
5 Replies

4. Shell Programming and Scripting

Read variables names from array and assign the values

Hi, I have requirement to assign values to variables which are created dynamically. Below is the code which i am using to achieve above requirement. #!/bin/ksh oIFS="$IFS"; IFS=',' STR_FAIL_PARENT_IF_FAILS="WF_F_P_IF_FAILS1,WF_F_P_IF_FAILS2,WF_F_P_IF_FAILS3" set -A... (1 Reply)
Discussion started by: tmalik79
1 Replies

5. Shell Programming and Scripting

Need to parse lines in a file into two words and assign the values to two variables

For example, I have a file with below lines containing VOB tags and VOB paths. * /vobs/fts/FTSUSM20_VOB /ccvobsslx01/projects/vobs/eml/FTSUSM20_VOB * /vobs/fts/FTS20_VOB /ccvobsslx01/projects/vobs/eml/FTS20_VOB * /vobs/pmv/PMS_VOB /ccvobsslx01/projects/vobs/cpm/_/PMS_VOB *... (4 Replies)
Discussion started by: senthilkc
4 Replies

6. Shell Programming and Scripting

Assign values to variables of a file

Hi, I have a file like the following... CUST= DIR= NULIST= name=philps_123 How can i add values to each of these unassigned variables using a shell script? say for eg: i have values for CUST as onida, dir as /dir/onida, NULIST as /tmp/onida_files. How can i add these values to... (11 Replies)
Discussion started by: Tuxidow
11 Replies

7. Shell Programming and Scripting

Assign Values to variables from a text file

The text file has one single row and looks like this Q1 P1 2006 I have to pick up this values from a shell script into three different variables, say quarter, period and year from the above text file. Some one know's how to do this? I went through 'sed', dint really know how to... (3 Replies)
Discussion started by: sarsani
3 Replies

8. Shell Programming and Scripting

how can i read text file and assign its values to variables using shell

Hello, I have a cat.dat file, i would like shell to read each 3 lines and set this 3 lines to 3 different variables. my cat.dat is: 11 12 +380486461001 12 13 +380486461002 13 14 +380486461003 i want shell to make a loop and assign 1st line to student_id, 2nd line to... (4 Replies)
Discussion started by: rosalinda
4 Replies

9. Shell Programming and Scripting

How do I assign values to variables made in a script?

How do I assign values to variables made in a script? e.g. for ((x=0;x<=5;i+=1)); do Xm$i=$var done (0 Replies)
Discussion started by: gelitini
0 Replies

10. Programming

how do u assign the values to different variables when it is presneted in one line??

hey people.. i have a configuration file that looks like 7080 7988 net04.xxxxx.edu 20 where 20 is the number of threads in the thread pool initially. net04.xxxxx.edu is the hostname. and 7080 7988 are two ports. first one for client requests and second one for dns communication. now my... (2 Replies)
Discussion started by: SwetaShah
2 Replies
Login or Register to Ask a Question