Linux command 1--ls

LS is the abbreviation of the list to see the file information under the folder, here are a few common examples.

1 sorts all the files under the folder according to CTime (the last time the file was changed).

Ls-lct

2 Show All files,-G does not show the owner of the file,-O does not show the group of owners

Ls-g Ls-o

3 Display the file size in human-read form

Ls-lh

4 Display the file as a comma-delimited line

Ls-m

5 Show All Files under folder

Ls-r

6 Ls-s Sort by file size ls-x sorted by file name extension

7 Ls-f can be appended to the list of files with a symbol, "*" for the executable of ordinary files; "/" for directories; "@" for symbolic links; "|" Represents FIFOs; "=" means socket

The following command indicates that subfolders are found in the folder

Ls-f | grep/$

Or use the following methods

Ls-l | grep ^d

8 Calculating the number of folders and files in a folder

Ls-l *

Used to calculate all files and folders in the current folder level directory

LS-LR *

Used to calculate all files and subdirectories under a directory

Ls-l * | grep ^-| Wc-l

Used to calculate all folders under a directory for all files and subdirectories

Ls-l * | grep ^d | Wc-l

Note here that the result of the WC display corresponds to the-L line number-m character number-C byte number, if the number of characters with the parameter-m, the number of words to calculate the parameter-W

9 absolute path for all files under the output folder

echo b |sed "s/^/' echo a '/"

Seb S represents a replacement, the above operation means to execute output B and append output A to the previous operation

where/can replace with alternative rich

echo b |sed "s:^: ' pwd '/:"

Represents an operation that performs a PWD plus "/" before performing an operation on output b

ls | Sed "s:^: ' pwd '/:"

Indicates the absolute path of all files under the list folder

10 lists the absolute paths of all files in the current directory, and subdirectories do not recursively

Find $PWD

$PWD represents the current directory string, find $pwd represents a lookup in the current directory

Find $PWD-maxdepth 1

-maxdepth means that only one layer is recursive

Find $PWD-maxdepth 1 | Xargs Ls-ld

Where Xargs is used to receive the preceding arguments.

Reference Document: Http://www.cnblogs.com/peida/archive/2012/10/23/2734829.html

Linux command 1--ls