run a command in shell script code example

Example 1: linux script to run commands

#1. Open the terminal. Go to the directory where you want to create your script.

#2. Create a file with . sh extension.

#3. Write the script in the file using an editor.

#4. Make the script executable with command
chmod +x <fileName>.

#5. Run the script using
./<fileName>.

Example 2: how to execute a bash script in terminal

$ chmod +x fileName
$ ./fileName

Example 3: how to run shell script

include 
#!/bin/bash (1st line inside yourfile.sh)

to run
./yourfile.sh

if you do not include that line
bash yourfile.sh

Example 4: how to run shell script

# method 1
chmod +x <filename>
./<filename>

# method 2
sh <filename>.sh

# method 3 (Only for bash script)
bash <filename>.sh

Example 5: how to run shell script

bash yourfile.sh