Q: What is cat filename << EOF?

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.

Q: How do you overwrite in cat command?

The key takeaway from this section is that we use cat > FILENAME to create or overwrite a file. Additionally, we can use cat >> FILENAME to append to a file that's already there. Then after typing in the text we want we use CTRL + D to exit the editor, return to the command line, and create the file.

Question 1

How do you skip the first line while reading a file in Unix?

Accepted Answer

The NR variable indicates the number of records in a file. The following `awk` command uses the NR variable to skip the first line of a file. The value of NR is 1 for the first line. The following command will print lines for which the NR value is greater than 1.

Question 2

What is cat filename << EOF?

Accepted Answer

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.

Question 3

How do you overwrite in cat command?

Accepted Answer

The key takeaway from this section is that we use cat > FILENAME to create or overwrite a file. Additionally, we can use cat >> FILENAME to append to a file that's already there. Then after typing in the text we want we use CTRL + D to exit the editor, return to the command line, and create the file.

How to cat two files after each other but omit the last/first line respectively?

Tags:

bash

text-files

line

bastibe

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Frank

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