What Is Eof Command in Unix?

The EOF operator is used in many programming languages. This operator stands for the end of the file. This means that wherever a compiler or an interpreter encounters this operator, it will receive an indication that the file it was reading has ended.

What is EOF command?

the “end-of-file” (EOF) key combination can be used to quickly log out of any terminal. CTRL-D is also used in programs such as “at” to signal that you have finished typing your commands (the EOF command). CTRL-Z. key combination is used to stop a process. It can be used to put something in the background temporarily.

How do you use EOF shell?

Examples of cat <<EOF syntax usage in Bash:

1. Assign multi-line string to a shell variable. $ sql=$(cat <<EOF SELECT foo, bar FROM db WHERE foo=’baz’ EOF ) …
2. Pass multi-line string to a file in Bash. $ cat <<EOF > print.sh #!/bin/bash echo $PWD echo $PWD EOF. …
3. Pass multi-line string to a pipe in Bash.