Objective: The objective of this lab is to work with files of UNIX file system.

Procedure: 1. OpenyourUnixshellandtrythesecommands:

Create a new file and add some text in it v cat > filename

• View a file v cat /etc/passwd v more /etc/passwd v more filename

• Copy file1 ,making file2 v cp file1 file2

• Rename file1 as file2 v mv file1 file2

• Delete file1 as file2 vrm file

//Deletefile // Double-check first

v rm -i file Counts the lines, words, characters in file

vwc file Search file for a string

v grep Andrw /etc/passwd v grep printf( hobby.c v grep ^loca /usr/dict/words

// List lines containing Andrw in /etc/passwd

//Lines containing printf( in hobby.c

//Lines starting with loca in /usr/dict/words

1

• Output can be redirected to a file with> v ls > dir.txt v cal 1997 > year1997

• Output can be appended to a file with >> v cal 1997 > years v cal 1998 >> years

• Concatenate two files v cat f1 f2 > fs

• Input redirection (less common) uses < v wc < years

• Combine input and output redirection v wc < years > year-counts

0. Do screenshot of each steps you have completed.