show text file in linux code example

Example 1: display contents of file ubuntu

less fileName
or
cat fileName

Example 2: find text in linux file

grep 'word' filename
grep 'word' file1 file2 file3
grep 'string1 string2'  filename
cat otherfile | grep 'something'
command | grep 'something'
command option1 | grep 'data'
grep --color 'data' fileName

Example 3: view file linux command line

cat filename #for short files
less filename #for longer files