View Linux File Content (CAT, Tac, NL, more, less, Head, tail, OD)

Cat: displays text content starting with the first line

Tac: displays text from the last line

NL: displays the row number.

More: displays the file content one page at a time.

Less: similar to more, but better than more, you can flip the page forward

Head: only the first few lines

Tail: only the last few rows

OD: Read File Content in binary mode

Cat [-abentv]

-A is equivalent to the Integration parameter of-vet. It can list some special characters rather than blank spaces.

-B: lists the row numbers, but does not include blank rows.

-E: use $ to display the ending line break.

-N print the travel number together with the blank line

-T display the [Tab] button

-V: lists the unique characters that cannot be seen.

TAC (cat Reverse, reverse output)

More page by page (most commonly used, I think so)

The Space key indicates turning down a page

Enter indicates turning one row down

B Indicates turning back the page

/Word search characters

: F: display the file name and row number.

Q exit

Less page by page

The Space key indicates turning down a page

[Pagedown] indicates turning a page down

[Pageup] indicates turning up a page

B Indicates turning up one page

/Word search down characters

? Word search for characters

N

N

Q exit

Head [-N number] File

Tail [-N number] File

Od [-T type] File

-T: followed by various types