linux--Common Command Usage Introduction

1, LS/: This command is to view the root directory of Linux, which have all the files of Linux. --liunx Concept: All documents

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These are the "ls/" out of the directory below will be introduced

/dev: This is all the hardware device files. ① block device: means random access, does not matter successively, such as hard disk. ② character devices: Linear access, such as keyboards.

/lost+found: This directory is usually the computer suddenly power down or suddenly crash, the computer back to temporarily save the unsaved files under this directory.

/bin: executable file, all commands of the user.

/sbin: executables, administration commands

Both/bin and/sbin are commands before the computer starts.

/sys: pseudo-system files, mapping of hardware device-related properties.

/boot: launches the related file.

/etc: the configuration file storage location.

/opt: where the third-party software or program is stored.

/tmp: the location of the temporary file store, each user can store files, create files, but can only delete files created by this user,

/ Home directory. Each user has their own home directory. Generally, the name of the user name as the home directory.

/lib:library files and kernel files. ① library files are divided into static libraries and dynamic libraries, static libraries: The program and library files are together, and when the migration is gone, the program depends on the library file or can run. ② Dynamic Library: Shared libraries, many programs common one library file, libraries and programs are not together, when the program is migrated, the program cannot run alone.

/misc: Miscellaneous

2. View commands

Linux is divided into internal commands and external commands.

• Type LS to see what the "ls" command is

• Directory Management:

LS, CD, pwd, mkdir, rmdir, tree

• File Management:

Touch, stat, file, RM, CP, MV, Nano

• Date Time:

Date, clock, Hwclock, Cal

• To view text:

Cat, TAC, more, less, head, tail

Tail-f: Check the tail of the file, you can monitor the file dynamics;

You can use man touch to view the options that are unclear for the above commands.

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linux--Common Command Usage Introduction