Compression, decompression, shutdown, restart and mount

one。 Compression and decompression

Common compression formats recognized by gz.bz2linux

Common compression and packaging commands for tar.gz.itar.bz2

Compress and pack simultaneously

Tar-zcvf compressed file name source file

Tar-zcvf aa.tar.gz aa

-z recognize .gz format

-c: compression

-v: shows the compression process

-f: specify the compressed package name

Tar-zxvf compressed file names are decompressed and untyped simultaneously

Tar-jcvf compressed file name source file compression and packaging at the same time

Tar-jcvf aa.tar.bz2 aa

Tar-jxvf aa.tar.bz2 unpacking and decompression

Check the unsolved package.

Tar-ztvf aa.tar.gz cannot unlock the package

Tar-jtvf aa.tar.bz2

-t only view, not decompress

Tar-jxvf root.tar.bz2-C / tmp/ specifies the decompression location

two. Shut down and restart command

1) there is no special case for shutdown-h now, use this command

-h shutdown

-r restart

Shutdown-r now

three。 Mount command

Linux all storage devices must be mounted and used, including hard drives

CD mount

/ dev/sda1 first partition of the first scsi hard drive

/ dev/cdrom CD

/ dev/hdc CD centos 5.5

/ dev/sr0 CD centos 6.x

Mount-t file system device description file mount point (empty directory already exists)

Mount-t iso9660 / dev/cdrom / mnt/cdrom

CD unloading

Umount / dev/cdrom

Umount / mnt/cdrom emphasizes that only when you exit the mount directory can you uninstall it.

Fdisk-l

Mount-t vfat / dev/sdb1 / mnt/usb

Sed-n '3p' file name; print the contents of the third line of the file

Sed-n'2, 5p 'file name; print the contents of the file from 2 to 5 lines