The file contents
cat view the file content
of the command is used to print out the contents of a file or the display terminal window.
Format:
CAT [options] filename
-n are numbered starting with 1 for the number of lines all output
-b non-numbered rows of blank lines all the output from the beginning 1
-s when faced with more than two consecutive blank lines line, with a blank line instead of
Page display file contents
Fullscreen way paging file contents, when the contents of pauses full screen, press the spacebar
to display the next screen, or press q jump off, suitable for reading long documents.
Part of view the beginning or end of the file
By default,
the front rows 10 display the content head
10 row display contents tail
File Content Statistics
Role: statistics for the number of lines in the specified file, word count, number of bytes.
Syntax: wc (Option) (parameters)
common options:
the -l statistics lines
-w count the number of words
-c count the number of bytes
Browse the entire contents of the file
more / less
when the contents of the file is too large, you can use more or less commands to view.
Format:
More file name
less filename
Displays the file header / trailer information
head / tail
head front command to view the file in rows, a plurality of lines after the tail command to view the file, the default view line 10.
Format:
head [options] filename
tail [options] filename
Query String
grep query string
grep command to match the string in the specified text file, the output string matching the entire contents of the row.
Format:
grep keyword Look