CUT command in LINUX

Q. What do you mean by the CUT command in LINUX?
A. It helps remove sections from:
- Cut Line and file (by byte position, character, and field)
- Cut, slice, and extract the command and text
- Saves it to Standard output.

Cut: Syntax
-b select by bytes
-c select by characters
-f select by field
-d  select by delimiter/separator
    cut option [file_name]

-b CUT BY BYTES
1. How to cut BYTES from Right.
a). Print first 4 BYTES, cut rest
cut -b 1,2,3,4 file.txt

b). Print the first range of BYTES 1-5, cut rest
cut -b 1-5 file.txt

c). Print first 1-3 and 5-7 BYTES, cut rest
cut -b 1-3,5-7 file.txt

d). Print 3rd BYTES, cut rest
cut -b 3 file.txt

e) Print up to 3rd BYTES using -
cut -b -3 file.txt

f) Cut FIST BYTES, print rest
cut -b 2- file.txt

-C CUT BY CHARACTER

1. Print the 2nd and 5th character of each line, rest cut
cut -c 2,5 file.txt

2. Print 2nd to 5th character, cut rest
cut -c 2-5 file.txt

-f CUT BY FIELDS RATHER THEN COLUMNS
-d stands for delimiter (space, tab, commas (,), semicolon (;), quotes ( ", ' ), braces ({}), pipes (|), or slashes ( / \ )

Example of fields:
cat file.txt
Hello world
hi words
-f 1 = Field 1 Hello and hi
-f 2 = Field 2 world and words

cat file.txt #(delimiter is space. there are 3 spaces in each line, represents first word" "2nd word" "3rd word)

Delimiter is space (" ") -d " "
hello wolds boy
world is hi
news is no
is not cool body
bad thing pain

1. Print all the 3rd words
cut -d " " -f 3 file.txt

2. Print all the 2nd words
cut -d " " -f 2 file.txt

3. Print 1st and 2nd-word
cut -d " " -f 1,2 file.txt

4. Print 1st to 3rd-word
cut -d " " -f 1-3 file.txt

Delimiter is tab ($'\t') -d$'\t'
hello  wolds  boy
world  is  hi
news  is  no
is not a cool  body
bad  thing  pain

1. Print all the 3rd words
cut -d$'\t' -f 1,3 file.txt

2. Print all the 2nd words
cut -d$'\t' -f 2 file.txt

3. Print 1st and 2nd word
cut -d$'\t' -f 1,2 file.txt

4. Print 1st to 3rd word
cut -d$'\t' -f 1-3 file.txt

Delimiter is : (":") -d ":"
hello:wolds:boy
world:is:hi
news:is:no
isnot:cool:body
bad:thing:pain

1. Print all the 3rd words
cut -d ':' -f 1,3 file.txt

2. Print all the 2nd words
cut -d ':' -f 2 file.txt

3. Print 1st and 2nd-word
cut -d ':' -f 1,2 file.txt

4. Print 1st to 3rd-word
cut -d ':' -f 1-3 file.txt

5. Print 1st to 3rd-word and 3-4
cut -d ':' -f 1-3,3-4 file.txt

6. Print 1st to 3rd
cut -d ':' -f -3 file.txt

7. Print from 3rd to last
cut -d ':' -f 3- file.txt