Ls # display the current directory file list by default
Ls? A # show all files, including hidden files
Ls? L # display file attributes, including the size, date, and symbolic connection, whether the file can be read/written, and whether the file can be executed
Ls -- color = never *. so> obj # the text color is not displayed, and all so files are recorded in the obj file.
Cp/root/source. # copy the file source under/root to the current directory.
Cp? Av soure_dir target_dir # copy the entire directory. the Two directories are identical.
Cp? Fr source_dir target_dir # copies the entire directory in non-link mode. when the source directory has a symbolic link, the two directories are different.
Diff dir1 dir2 # compare whether the list of files in directory 1 and directory 2 is the same, but does not compare the actual content of files.
Diff file1 file2 # compare whether file 1 and file 2 have the same content. if a file is in text format, different contents are displayed, if the code is binary, the two files are different.
Comm file1 file2 # compare files and display different contents of the two files
Cat file # displays the file content, which is the same as the DOS type.
Cat file | more # display the content of the file and transfer it to the more Program for pagination. use the command less file to implement the same function.
More # Paging command, generally pass the content to it through pipelines, such as ls | more
Du-sm/root # Calculate the capacity of the/root directory in MB
Find-name/path file # search in the/path directory to see if there is any file
Grep-ir "chars" # search for the character string chars in all files in the current directory, and ignore case sensitivity.-I is case sensitivity and-r is the next level Directory.
Press ctrl + c to enter the command, and then enter: x (exit),: x! (Exit and save): w (Write file),: w! (Write files without inquiry),: r file (read file),: % s/oldchars/newchars/g (replace all strings with oldchars newchars ).
Fdisk/dev/hda # just like the fdisk that executes dos
Cfdisk/dev/hda # A little more friendly than the fdisk interface
Mount-t ext2/dev/hda1/mnt # load/dev/hda1 to the/mnt Directory
Df # display information about file system loading
Mount-t iso9660/dev/cdrom/mnt/cdrom # attach the optical drive to the/mnt/cdrom directory.
Mount-t smb // 192.168.1.5/destination dir/mnt-o username = tomlinux, password = tomlinux # load the windows shared directory to the/mnt/smb Directory. the username and password are all tomlinux.
Mount-t nfs 192.168.1.1:/1_dir/mnt # load the shared directory of nfs to the/mnt/nfs Directory
Umount/mnt # unmount the/mnt Directory. The/mnt directory must be idle.
Umount/dev/hda1 # Uninstall the/dev/hda1 device. the device must be empty.
Sync # synchronize the content in the cache with the disk. copy the file in Linux. Generally, the file is written only when the system is idle.
E2fsck/dev/hda1 # check whether/dev/hda1 has a file system error and the system prompts how to fix it.
E2fsck-p/dev/hda1 # Check for/dev/hda1 errors. If yes, it is automatically repaired.
E2fsck-y/dev/hda1 # check errors. all questions are executed in the yes mode.
E2fsck-c/dev/hda1 # check whether the disk has a bad partition
Mkfs/dev/hda1 # Format/dev/hda1 in ext2 format
Mkfs. minix/dev/hda1 # Format/dev/hda1 as a file system in minix format
Mfks/dev/hda9 # lattice/dev/hda9 is in Linux swap format
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