What is difference between head and tail command?

As their names imply, the head command will output the first part of the file, while the tail command will print the last part of the file. Both commands write the result to standard output.

What is the difference between head and tail filters in Linux?

Shell provides us the head and tail commands to print only the lines in which we are interested in. The main difference between both the commands is, head prints the lines from the beginning of the files, and tail prints the lines from the end of the files.

What does head command do Linux?

The head command prints the first lines (10 lines by default) of one or more files or piped data to standard output. This article explains how to use the Linux head utility through practical examples and detailed explanations of the most common command options.

What is the difference between grep and egrep in Linux?

grep and egrep does the same function, but the way they interpret the pattern is the only difference. Grep stands for “Global Regular Expressions Print”, were as Egrep for “Extended Global Regular Expressions Print”. Where as in grep, they are rather treated as pattern instead of meta characters.

What are filter commands in Linux?

12 Useful Commands For Filtering Text for Effective File Operations in Linux

• Awk Command. Awk is a remarkable pattern scanning and processing language, it can be used to build useful filters in Linux.
• Sed Command.
• Grep, Egrep, Fgrep, Rgrep Commands.
• head Command.
• tail Command.
• sort Command.
• uniq Command.
• fmt Command.

What are filter commands?

In UNIX/Linux, filters are the set of commands that take input from standard input stream i.e. stdin, perform some operations and write output to standard output stream i.e. stdout. The stdin and stdout can be managed as per preferences using redirection and pipes. Common filter commands are: grep, more, sort. 1.