Bash assign string to variable Post: 302493594

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 ...

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!

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' ...

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...

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...

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. 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.

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...

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...

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...

LEARN ABOUT FREEBSD

pnmarith

pnmarith(1)                                                   General Commands Manual                                                  pnmarith(1)

NAME

       pnmarith - perform arithmetic on two portable anymaps

SYNOPSIS

       pnmarith -add|-subtract|-multiply|-difference|-minimum|-maximum.  pnmfile1 pnmfile2

DESCRIPTION

       Reads two portable anymaps as input.  Performs the specified arithmetic operation, and produces a portable anymap as output.  The two input
       anymaps must be the same width and height.

       The arithmetic is performed between corresponding pixels in the two anymaps, as if maxval was 1.0, black was 0.0, and  a  linear  scale  in
       between.  Results that fall outside of [0..1) are truncated.

       The operator -difference calculates the absolute value of pnmarith -subtract pnmfile1 pnmfile2, i.e. no truncation is done.

       All flags can be abbreviated to their shortest unique prefix.

SEE ALSO

       pbmmask(1), pnmpaste(1), pnminvert(1), pnm(5)

AUTHOR

       Copyright (C) 1989, 1991 by Jef Poskanzer.  Lightly modified by Marcel Wijkstra <wijkstra@fwi.uva.nl>

                                                                  26 August 1993                                                       pnmarith(1)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

How to assign variable from a string having blanks in between

Discussion started by: flextronics

2. Shell Programming and Scripting

read and assign each character from the string to a variable

Discussion started by: Tek-E

3. Shell Programming and Scripting

Assign bash command to variable

Discussion started by: Moxy

4. Shell Programming and Scripting

assign awk output to bash variable

Discussion started by: macnetdaemon