Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Assign variable value from file to another with the same name
Top Forums Shell Programming and Scripting Assign variable value from file to another with the same name Post 303014257 by shash on Thursday 8th of March 2018 07:54:13 AM
Old 03-08-2018
Assign variable value from file to another with the same name
Hi All,

I need to read two config files in a shell script. In that I need to assign a value from one config file to another. I 'm using bash.

config_env.txt
Code:
prefix=tab_

config_properties.txt
Code:
table_name=${prefix}account

So, when I read these two files in a shell script, I need to substitute the value of prefix in the variable table_name and then output it to a different file.

I could get the value to be printed in the shell script but I need to pass these variables to a different program which I 'm not able to get it work.

For now I managed to work like this:

Code:
. ./config_env.txt
. ./config_properties.txt
echo "table name is : $table_namef"

Output is
Code:
table name is : tab_account

How do I get this to write to a different output file?

Thanks
Shash
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Assign value to a variable in a parameter file

Hi, I have a parameter file and it contains following items $ cat TransactionParams From_Date_Parm=2005-02-25 To_Date_Parm=2005-05-25 Extract_Root_Parm=/detld1/etl/ascential/Ascential/DataStage/Projects/CTI_London/IAM Extract_Type_Parm=Transaction EDW_Database_Parm=hdw_erks... (2 Replies)
Discussion started by: gopskrish
2 Replies

2. UNIX for Dummies Questions & Answers

How to Read a config file and Assign to Variable

I have removeConfig file, it contains the dir paths for removing. I need to read line by line and assign to variable. any idea? (1 Reply)
Discussion started by: redlotus72
1 Replies

3. UNIX for Dummies Questions & Answers

search file for word, then assign to variable

Hi all, Trying to search a file for one word only, then assign that word to a variable. Not sure if this is a grep or awk (or either) function. Should be a simple operation. Example: This file contains the string "COMPLETE". I would like to pull that word out and assign it to a... (2 Replies)
Discussion started by: dejit
2 Replies

4. UNIX for Dummies Questions & Answers

How to assign the content of a file to a variable?

Hi all, I have a problem here. I have a file and let we take the content of the file is just '32' (only a numeric value in that file). Now I need to assign this numeric value ( value in that file) to a variable. Is that possible? If so, can you plz advice me on this? Thanks in... (4 Replies)
Discussion started by: iamgeethuj
4 Replies

5. Shell Programming and Scripting

Read a file and assign the values to a variable

i have a file in this format curyymm PRVYYMM CDDMmmYY bddMmmyy eddMmmyy --------- ------- ------------ ---------- ----------- 0906 0905 09Jun09 01Jun09 30Jun09 ----------- --------- ------------ ------------ ----------- i need to read the... (5 Replies)
Discussion started by: depakjan
5 Replies

6. Programming

Can't assign struct variable in header file

Hi guys. I have a header file including a structure like this: typedef struct { int index = -1; stack_node *head; } stack; But when compiling with cc it shows error at the assignment line (int index = -1): error: expected ‘:', ‘,', ‘;', ‘}' or ‘__attribute__' before ‘=' token... (1 Reply)
Discussion started by: majid.merkava
1 Replies

7. Shell Programming and Scripting

how to assign file names to array variable?

I wish to assign file names with particular extention to array variables. For example if there are 5 files with .dat extention in /home/sam then i have to assign these 5 files to an array. plz help me how to accomplish this. Thanks in advance. (4 Replies)
Discussion started by: siteregsam
4 Replies

8. Shell Programming and Scripting

How can we assign value to an array variable from an external file?

is it possible to assign value to an array variable from an external file?? if yes then how?? I am using below code but its not working. #!bin/bash myarray < file_name echo ${mayarray} (6 Replies)
Discussion started by: mukulverma2408
6 Replies

9. Shell Programming and Scripting

Assign a variable to number of lines in a file

Hello Gurus, Here is my requirement. I need to find the number of lines in a file and need to assign it to a variable. This is what I did and not wroking. #!/bin/ksh set -xv Src_Path=/mac/dev/Generic/SrcFiles Src_Count=wc -l ${Src_Path}/FILE_JUNE.txt Count_file = $Src_Count | awk -F... (2 Replies)
Discussion started by: thummi9090
2 Replies

10. UNIX for Dummies Questions & Answers

Assign line from file to variable

Hi, I am new to shell scripting. Need help with the below requirement. I need help to read a log file and line containing word ORA needs to be captured into a variable and the values of the variable need to be inserted into a table. For E.g. file test.sql has below error: ORA-01017:... (3 Replies)
Discussion started by: ricsharm
3 Replies

LEARN ABOUT FREEBSD

atf-sh

ATF-SH(1)						    BSD General Commands Manual 						 ATF-SH(1)

NAME

     atf-sh [-s shell] -- interpreter for shell-based test programs

SYNOPSIS

     atf-sh script

DESCRIPTION

     atf-sh is an interpreter that runs the test program given in script after loading the atf-sh(3) library.

     atf-sh is not a real interpreter though: it is just a wrapper around the system-wide shell defined by ATF_SHELL.  atf-sh executes the inter-
     preter, loads the atf-sh(3) library and then runs the script.  You must consider atf-sh to be a POSIX shell by default and thus should not
     use any non-standard extensions.

     The following options are available:

     -s shell	  Specifies the shell to use instead of the value provided by ATF_SHELL.

ENVIRONMENT

     ATF_LIBEXECDIR    Overrides the builtin directory where atf-sh is located.  Should not be overridden other than for testing purposes.
     ATF_PKGDATADIR    Overrides the builtin directory where libatf-sh.subr is located.  Should not be overridden other than for testing purposes.
     ATF_SHELL	       Path to the system shell to be used in the generated scripts.  Scripts must not rely on this variable being set to select a
		       specific interpreter.

EXAMPLES

     Scripts using atf-sh(3) should start with:

	   #! /usr/bin/env atf-sh

     Alternatively, if you want to explicitly choose a shell interpreter, you cannot rely on env(1) to find atf-sh.  Instead, you have to hardcode
     the path to atf-sh in the script and then use the -s option afterwards as a single parameter:

	   #! /path/to/bin/atf-sh -s/bin/bash

ENVIRONMENT

     ATF_SHELL	  Path to the system shell to be used in the generated scripts.

SEE ALSO

     atf-sh(3)

BSD
								September 27, 2014							       BSD
All times are GMT -4. The time now is 01:16 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy