Content of Content of a variable!


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Content of Content of a variable!
# 1  
Old 08-27-2007
Content of Content of a variable!

I got a sample BASH script like this :

$ cat test
MYVAR=$1
DUMMY1="This is tricky"
DUMMY2=24
echo $[$MYVAR]


$ ./test DUMMY1
./test: line 5: This is tricky: syntax error in expression (error token is "is tricky")
**I was expecting the output as "This is tricky", ah! but no luck


**But this works fine for intergers, no issues :-)
$ ./test DUMMY2
24

Could anyone guide me how to get the string in DUMMY1(i.e "This is tricky") through MYVAR? Please
# 2  
Old 08-27-2007
Instead of echo $[$MYVAR], you can use : echo ${!MYVAR}...It will be working fine.
# 3  
Old 08-27-2007
Navojit, that worked for me :-) Thanks a lot
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Replacement of variable by their content in a file

Dear all, I have a "SQL request" in a file: that request include different "host variable" and I would like to substitute the different "host variable" by their respective content before executing the request. For example: $ echo $SHELL /bin/bash $ cat dae2.txt DELETE FROM ... (11 Replies)
Discussion started by: dae
11 Replies

2. UNIX for Dummies Questions & Answers

Getting ls content into a file using variable

hi i just cant figure out how can i do this ls -lt > log.txt using $PWD what i mean is how can i get the ls command content into a file using $PWD variable? :confused: (4 Replies)
Discussion started by: chinababy
4 Replies

3. Shell Programming and Scripting

Facing issues with Content-Type:application/x-download Content-Disposition:attachment

I am in the process of developing a perl cgi page. I had succeeded in developing the page but there are few errors/issues with the page. description about cgi page: My CGI page retrieves all the file names from an directory and displays the files in drop down menu for downloading the... (5 Replies)
Discussion started by: scriptscript
5 Replies

4. Shell Programming and Scripting

Loop over variable content

Hello all, I do have a variable containing one line like this: Waiting for job XXXXXX to start I needed to get the 'XXXXXX' literal, so I did the following: job_interno=`echo $log_exec | sed 's/.*Waiting for job \(*\).*/\1/' ` #other stuff Now, my variable is have more... (5 Replies)
Discussion started by: manolain
5 Replies

5. Shell Programming and Scripting

Help with remove duplicate content and only keep the first content detail

Input data_10 SSA data_2 TYUE data_3 PEOCV data_6 SSAT data_21 SSA data_19 TYUEC data_14 TYUE data_15 SSA data_32 PEOCV . . Desired Output data_10 SSA data_2 TYUE data_3 PEOCV data_6 SSAT data_19 TYUEC (9 Replies)
Discussion started by: patrick87
9 Replies

6. Shell Programming and Scripting

how to get the specified content of the text into a variable.

I am having one string like ./usr1/Server/temp/app.env ./usr1/Server/temp/upp/app.env ./usr1/Server/ORIG_temp/app.env ./usr1/Server/ORIG_temp/upp/app.env ./usr1/Server/work_temp_40/app.env ./usr1/Server/work_temp_40/upp/app.env ./usr1/fd/app.env ./usr1/PurgeArchive/app.env ./usr1/bm/bin/app.env... (6 Replies)
Discussion started by: dineshmurs
6 Replies

7. Shell Programming and Scripting

addressing variable content...

I want to address a variable content whose name is/matches the content of a given other variable. i.e. set name=´sam´ set ${name}_age=´27´ So, by typing: echo ${name}_age I correctly obtain: sam_age By typing: echo $sam_age or echo ${sam_age} I correctly obtain: 27 But how can I... (3 Replies)
Discussion started by: sobolev
3 Replies

8. 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

9. Shell Programming and Scripting

Content of variable

I have a variable that contains filenames like this: variable="file_1.extension<blank>file_2.extension<blank>file_3.extension<blank>file_4.extension and so on" How can I make filenames to be separated by newline: (I tried Sed but it didn't worked well) file_1.extension file_2.extension... (6 Replies)
Discussion started by: MartyIX
6 Replies

10. Shell Programming and Scripting

How to replace a variable content

Hi, variable1="This is a car" Now I want to replace the content of variable1, "car" to "dog". Is there any simple command I can use. Thanks. Joseph (4 Replies)
Discussion started by: josephwong
4 Replies
Login or Register to Ask a Question