Sponsored Content
Top Forums Shell Programming and Scripting Bash assign string to variable Post 302493740 by cfajohnson on Thursday 3rd of February 2011 02:49:03 PM
Old 02-03-2011
Quote:
Originally Posted by ghostdog74
Whatever it is, the OP did not say he wants or not to do POSIX mode. The title also specifically said "Bash".
Using "let" the way he uses it is not "wrong" either, since its supported in Bash, (although I do agree it's not necessary.)

The way he used it is wrong. He was using it to assign a string.

In any case, I do not recommend bad practices to people just learning the shell. One may be using bash now, but in the future may have to use a shell that doesn't support let in any context. If it added something to the script, there would be some justification for it, but it doesn't.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

How to assign variable from a string having blanks in between

Hi All, I am new to bash scripting. I need your help to removing spaces from a string and assign them to different variables. Iwant to call script with one command line argument which is file name which containes different attributes their type and different values eg ... (1 Reply)
Discussion started by: flextronics
1 Replies

2. Shell Programming and Scripting

read and assign each character from the string to a variable

How... can I read input by a user character by cahracter. And assign each character from the string to a variable? Any help would be greatly appreciated! Thank you! (1 Reply)
Discussion started by: Tek-E
1 Replies

3. Shell Programming and Scripting

Assign bash command to variable

Hi I am trying to write a function that needs to be able to assign the last run shell command to a variable. The actual command string itself not the exit code of the command. I am using the bash command recall ability to do this as follows: alias pb='ps | grep ash' ... (3 Replies)
Discussion started by: Moxy
3 Replies

4. Shell Programming and Scripting

assign awk output to bash variable

greetings all, I am have a heck of a time trying to accomplish a very simple thing. I have an array of "shortname<spaces>id" created from a dscl output. I want to assign shortname=word1 and id=word2. I have tried shortname=$(${textArray} | awk '{print $1}') - and get 'awk : cannot open... (3 Replies)
Discussion started by: macnetdaemon
3 Replies

5. Shell Programming and Scripting

bash assign mysql query single field to variable

I'm running a bash script query and assigning the output to a variable like this: exists=`mysql -u $USER_NAME --password=$PASSWORD -D "somedb" \ -e "SELECT * FROM somedb.sometable WHERE field1 ='$a' \ AND field2 ='$b' LIMIT 0 , 30";` which returns something like: echo... (2 Replies)
Discussion started by: unclecameron
2 Replies

6. Shell Programming and Scripting

need to assign a string to a variable

Hello Experts, In my script i am using the below syntax /usr/bin/head -1 /opt/chumma.txt | /usr/bin/cut -d " " -f3 output of this one is --> Monday I want to store this String in a variable (i.e) j or k... Give me some idea experts. Thanks in advance. (7 Replies)
Discussion started by: natraj005
7 Replies

7. Shell Programming and Scripting

Assign a variable the nth character of a string.

I see a millioin ways to do this with echo, but what I wan to do is assign a variable the "nth" character of an incoming parameter to a ksh script. $1 will be "pia" I need to assign the first character to stmttype. (10 Replies)
Discussion started by: klarue
10 Replies

8. Shell Programming and Scripting

Assign variables to CSV string (bash)

Hi guys, New to the forum, and been messing around with Linux for about a year now. I'm still very much a rookie, so just assume that I'm a total idiot: I currently have a shell that spits out a CSV number string of about 8 numbers as follows: 1.00,2.00,3.00 ... ,8.00I need to assign a... (7 Replies)
Discussion started by: hansol
7 Replies

9. UNIX for Beginners Questions & Answers

How do I assign the output of a command to a variable within a loop in bash?

In the else of the main if condition . else set lnk = $(readlink -f <path> | cut -d '/' -f7) echo "$lnk" if ] When I run the above on command line , the execution seems to be fine and I get the desired output. But when I try to assign it to a variable within a loop... (12 Replies)
Discussion started by: sankasu
12 Replies

10. UNIX for Beginners Questions & Answers

Using read to assign value to bash variable not working

Hi, I am attempting to assign the output of the following command, to two bash variables, var1 and var2 using "read," but it doesn't seem to be working. # openstack hypervisor stats show | awk -F'|' 'NR==14{print $2,$3}' vcpus 92 # echo $? 0 # openstack hypervisor... (4 Replies)
Discussion started by: sand1234
4 Replies
BASHBUG(1)						      General Commands Manual							BASHBUG(1)

NAME
bashbug - report a bug in bash SYNOPSIS
bashbug [--version] [--help] [email-address] DESCRIPTION
bashbug is a shell script to help the user compose and mail bug reports concerning bash in a standard format. bashbug invokes the editor specified by the environment variable EDITOR on a temporary copy of the bug report format outline. The user must fill in the appropriate fields and exit the editor. bashbug then mails the completed report to bug-bash@gnu.org, or email-address. If the report cannot be mailed, it is saved in the file dead.bashbug in the invoking user's home directory. The bug report format outline consists of several sections. The first section provides information about the machine, operating system, the bash version, and the compilation environment. The second section should be filled in with a description of the bug. The third sec- tion should be a description of how to reproduce the bug. The optional fourth section is for a proposed fix. Fixes are encouraged. ENVIRONMENT
bashbug will utilize the following environment variables if they exist: EDITOR Specifies the preferred editor. If EDITOR is not set, bashbug defaults to emacs. HOME Directory in which the failed bug report is saved if the mail fails. TMPDIR Directory in which to create temporary files and directories. SEE ALSO
bash(1) AUTHORS
Brian Fox, Free Software Foundation bfox@gnu.org Chet Ramey, Case Western Reserve University chet@po.cwru.edu GNU Bash-4.0 1998 July 30 BASHBUG(1)
All times are GMT -4. The time now is 01:56 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy