Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Assign Unknown Values to Variables
Top Forums Shell Programming and Scripting Assign Unknown Values to Variables Post 302927041 by Scrutinizer on Sunday 30th of November 2014 06:34:18 AM
Old 11-30-2014
In bash, try:
Code:
read -a arr <<< $var

Code:
echo "${arr[0]}"
echo "${arr[1]}"
...


Code:
echo ${returnedvalues} | 
{ 
  read -a arr
  echo "${arr[0]}"
  echo "${arr[1]}"
  ...
}

Or
Code:
set -- $returnedvalues
echo $1
echo $2
...

---
At Junior_helper. Note that that will only go through the loop once. Using code groups ( { ... } ) would accomplish the same:

Code:
echo "$@" |
{
  read ${vars}
  ....
}

( But you can skip the whole bit, since the values will already be in $1, $2, $3 etc.. )
Last edited by Scrutinizer; 11-30-2014 at 07:47 AM..
These 2 Users Gave Thanks to Scrutinizer For This Post:
sea SkySmart
 

10 More Discussions You Might Find Interesting

1. 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

2. 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

3. 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

4. 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

5. 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

6. 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

7. 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

8. 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

9. 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

10. Shell Programming and Scripting

A better way to assign values to variables - shell

so i've been used to doing it this way: SVAL=$(echo "7 3 2 38 3" | awk '{print $2}') 4VAL=$(echo "4:21:N:3" | awk -F":" '{print $4}') I know there's a way to do it by putting the value in an array and assigning it that way. but i'm not sure how to do it efficiently. any ideas? i dont... (9 Replies)
Discussion started by: SkySmart
9 Replies

LEARN ABOUT DEBIAN

libbash

LIBBASH(7)							  libbash Manual							LIBBASH(7)

NAME

     libbash -- A bash shared libraries package.

DESCRIPTION

     libbash  is  a package that enables bash dynamic-like shared libraries. Actually its a tool for managing bash scripts whose functions you may
     want to load and use in scripts of your own.

     It contains a 'dynamic loader' for the shared libraries ( ldbash(1)), a configuration tool (ldbashconfig(8)), and some libraries.

     Using ldbash(1) you are able to load loadable bash libraries, such as getopts(1) and hashstash(1).  A bash shared library that can be  loaded
     using
     ldbash(1) must answer 4 requirments:

     1.     It must be installed in $LIBBASH_PREFIX/lib/bash (default is /usr/lib/bash).

     2.     It must contain a line that begins with '#EXPORT='.  That line will contain (after the '=') a list of functions that the library
	    exports.  I.e. all the function that will be usable after loading that library will be listed in that line.

     3.     It must contain a line that begins with '#REQUIRE='.  That line will contain (after the '=') a list of bash libraries that are
	    required for our library.  I.e. every bash library that is in use in our bash library must be listed there.

     4.     The library must be listed (For more information, see ldbashconfig(8)).

   Basic guidelines for writing library of your own:
     1.     Be aware, that your library will be actually sourced. So, basically, it should contain (i.e define) only functions.

     2.     Try to declare all variables intended for internal use as local.

     3.     Global variables and functions that are intended for internal use (i.e are not defined in '#EXPORT=') should begin with:
		  __<library_name>_
	    For example, internal function myfoosort of hashstash library should be named as
		  __hashstash_myfoosort
	    This helps to avoid conflicts in global name space when using libraries that come from different vendors.

     4.     See html manual for full version of this guide.

AUTHORS

     Hai Zaar <haizaar@haizaar.com>
     Gil Ran <ril@ran4.net>

SEE ALSO

     ldbash(1), ldbashconfig(8), getopts(1), hashstash(1) colors(1) messages(1) urlcoding(1) locks(1)

Linux								       Epoch								     Linux
All times are GMT -4. The time now is 07:09 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy