1 | initial version |
Yes, it is possible to substitute a shell variable before saving it to a file using command substitution.
For example:
#!/bin/bash
name="Alice"
file_content="Hello, my name is $(echo $name)."
echo "$file_content" > greeting.txt
In this script, the variable $name
is substituted using command substitution $(echo $name)
before saving the string to the file greeting.txt
. The contents of greeting.txt
would be:
Hello, my name is Alice.