How do you read the contents of a file in shell script?

Reading File Content Using Script

#!/bin/bash.
file=’read_file.txt’
i=1.
while read line; do.
#Reading each line.
echo “Line No. $ i : $line”
i=$((i+1))
done < $file.

How do you print the value of the number in shell script?

To print the value of the variable, we need to specify the ‘$’ symbol before the variable name.

How do you read a file in Unix?

Use the command line to navigate to the Desktop, and then type cat myFile. txt . This will print the contents of the file to your command line. This is the same idea as using the GUI to double-click on the text file to see its contents.

How do you print the value of a variable in Linux?

Using the printenv Command The printenv command-line utility displays the values of environment variables in the current shell. We can specify one or more variable names on the command line to print only those specific variables.

How do you display a variable in shell?

Now, using the echo command we can simply display its value on the terminal as follows:

$ var_a=100. $ echo $var_a.
$ var_b=” bash programming echo variable” $ echo $var_b.
$ var_A=”hellofriends” $ var_B=50. $ echo $var_A$var_B.
$ var1=$(date) $ var2=$(hostname) $ echo “the date is $var1 @ computer name is $var2”

What is IFS in shell script?

For many command line interpreters (“shell”) of Unix operating systems, the input field separators variable (abbreviated IFS, and often referred to as internal field separators) refers to a variable which defines the character or characters used to separate a pattern into tokens for some operations.

How do I read a .sh file in Linux?

The procedure to run the .sh file shell script on Linux is as follows:

Open the Terminal application on Linux or Unix.
Create a new script file with .sh extension using a text editor.
Write the script file using nano script-name-here.sh.
Set execute permission on your script using chmod command :
To run your script :

How do you read the contents of a file in shell script?