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how to use variables in SED?

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http://askubuntu.com – I try the fallowing code and it does nothing ble=QQ sed -i 's/$ble/ZZ/g' $file However this code replaces QQ with ZZ ble=QQ sed -i 's/$ble/ZZ/g' $file how to use variables in SED? (HowTos)

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Submitted by Danial on 11/07/2011 – Made popular on 11/07/2011

Stories similar to how to use variables in SED?

Hi genius, Following is the problem. We have one templete file(input file) where some variables will be used Example:

Code: word1 word2 &{word3} word4 ${word5} word6 And also we have one property file where we define these variables Example:

Code: word3= something Word5= something Need to read the property file and read the variables there and generate output file

Example:

Code

Hi!

Hi, there I have a file with tab and space as field separator. I need to assign values to variables then work with them, line by line. The code I wrote only works when each line has only one word.

Hi all! I think someone might be able to solve my problem pretty easily.

I am trying to run a bash loop with 3 variables.

Variables in heredoc 51 weeks 4 days ago

I currently use this message to send e-mails in a script but I would also like to save the output of this code to a file as well while preserving the variables.

For example, I have a file look as follows:

abc def ghi

Now, I want to use a Linux shell script to set some variables according to this file. I need the following variables to be set something like:

export abc=abc111 export def=def111 export ghi=ghi111

As you can see that the variable names are retrieved from list file as well. Thanks.

Hello,

Here is my problem using KSH I have a set of compound variables, let say cmp_var1 cmp_var2 The names of these variables are stored in an indexed array. How can I access the subfields of these compound variables ? I tried:

Code: set -A cmp_varnames=(cmp_var1 cmp_var2) for cmp in ${cmp_varnames[*]} do eval ${${cmp}.field} done That does not work, I tried a few other things, no luck. Th

AWK looping over 2 variables 35 weeks 4 days ago

I would like to loop over variables i and j consecutively,

Code: { a = -6.7   b =  7.0   c =0.1 { for (i = 0; i<=(b-a)/c; i++)   for (j = 1; j<=(b-a)/c; j++)   '$1<=(a+j*c)&&$1>=(a+i*c)' FILENAME > output_j   '{print $2}' output_j > output_j_f } I essentially want to print the range of $1 when {i=0,j=1}, {i=1,j=2} etc.

Hi ,

I have input file like below

Code: Hi this is "vinoth". Hi happy to work with 'unix' USA(united states of America) My script variables are below :

Code: Dquote=Ộ Squote=&#$567 Obrac=&^986 Cbrac=&^745 I want to read the variables in my SED command to replace the double quote,single quote,open bracket, and close bracket.

I want output file like

C