Vpsadd tutorial: some of the most commonly used commands in Linux

Vpsadd tutorial: The most commonly used commands in Linux Command Linux common commands File management cat chattr chgrp chmod chown cksum cmp

diff diffstat file find git gitview indent

cut ln less locate isattr mattrib mc

mdel mdir mktemp more move mread mren

mtools mtoolstest mv od paste patch rcp

rm locate split tee tmpwatch touch umask

which cp in mcopy mshowfat rhmask whereis

Disk management cd df dirs du edquota eject

mcd mdeltree mdu mkdir mlabel mmd

mrd mzip pwd quota mount mmount

rmdir rmt stat tree umount ls

quotacheck quotaoff lndir repquota quotaon

Document editing col colrm comm csplit ed egrep ex fgrep

fmt fold grep ispell jed joe join look

mtype pico rgrep sed sort spell tr expr

uniq wc

File transfer lprm lpr lpq lpd bye ftp

uuto uupick uucp uucico tftp ncftp

ftpshut ftpwho ftpcount

Disk maintenance badblocks cfdisk dd e2fsck ext2ed

fsck fsck fsconf fdformat hdparm

mformat mkbootdisk mkdosfs mke2fs mkfs.ext2

mkfs.msdos mkinitrd mkisofts mkswap mpartition

swapon Symlinks sync mbadblocks mkfs

fsck.ext2 fdisk losetup mkfs sfdisk

swapoff

Network communication apachectl arpwatch dip getty mingetty uux

telnet uulog uustat ppp-off netconfig nc

httpd ifconfig minicom mesg dnsconf wall

netstat ping pppstats samba setserial talk

traceroute tty newaliases uuname netconf write

statserial efax pppsetup tcpdump ytalk cu

smbd testparm smbd smbclient shapecfg

System management adduser f useradd date exit finger

fwhois sleep suspend groupdel groupmod halt

kill last lastb login logname logout

ps nice procinfo top pstree reboot

rlogin rsh sliplogin screen shutdown rwho

sudo gitps swatch tload logrotate kill

uname chsh userconf userdel usermod vlock

who whoami whois newgrp renice su

skill w ID free

System settings reset clear alias dircolors aumix bind

chroot clock crontab declare depmod dmesg

enable eval export pwunconv grpconv rpm

insmod kbdconfig lilo liloconfig lsmod minfo

set modprobe ntsysv mouseconfig passwd pwconv

rdate resize rmmod grpunconv modinfo time

setup sndconfig setenv setconsole timeconfig ulimit

unset chkconfig apmd hwclock mkkickstart fbset

unalias SVGAText Mode

Backup compression ar bunzip2 bzip2 bzip2recover gunzip unarj

compress cpio dump uuencode gzexe gzip

lha restore tar uudecode unzip zip

zipinfo

Equipment management setleds loadkeys rdev dumpkeys MAKEDEV

ls cd mkdir rmdir cp rm mv f cat more le pwd clear ln grep find ar rpm mount umount

1. The top command can view the system status in real time:

top – 14:11:08 up 18:28, 1 user, load average: 0.08, 0.18, 0.24 Tasks: 112 total, 1 running, 111 sleeping, 0 stopped, 0 zombie Cpu(s): 0.3%us, 0.7%sy, 0.0%ni, 99.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st Mem: 1015064k total, 992444k used, 22620k free, 31504k buffers Swap: 524284k total, 1308k used, 522976k free, 558164k cached

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 3770 root 20 0 55596 3352 2740 S 0.3 0.3 0:25.56 ss-server 3825 root 20 0 49068 2200 2060 S 0.3 0.2 0:08.77 ss-server 3844 root 20 0 49068 2208 2060 S 0.3 0.2 0:08.67 ss-server 1 root 20 0 10424 1340 1264 S 0.0 0.1 0:01.51 init 2 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kthreadd 3 root 20 0 0 0 0 S 0.0 0.0 0:07.70 ksoftirqd/0 4 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kworker/0:0 5 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 kworker/0:0H 6 root 20 0 0 0 0 S 0.0 0.0 0:05.01 kworker/u2:0 7 root 20 0 0 0 0 S 0.0 0.0 0:24.00 rcu_sched 8 root 20 0 0 0 0 S 0.0 0.0 0:00.00 rcu_bh 9 root RT 0 0 0 0 S 0.0 0.0 0:00.00 migration/0 10 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 khelper 11 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kdevtmpfs 12 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 netns 13 root 20 0 0 0 0 S 0.0 0.0 0:00.00 xenwatch 14 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kworker/u2:1

#Not complete, there are some other processes below, no detailed description The key area to focus on is the load average in the first row, which is the system load, that is, the entire VPS resource usage. If the website is built normally, it rarely exceeds 5. If the BURST exceeds 20, the account will be banned. The first one in the third row is the resource occupied by the CPU. There is also the following ??%wa, which is the status of the hard disk. Under normal circumstances, it is best not to occupy more than 30% of the CPU. If the wa index is above 30% for a long time, the hard disk is basically in a weak state. The fourth row is memory, how much is the total, how much is used, and how much is left.

2.wget command downloads network files, for example:

wget http://www.xxx.com/100mb.test 3.chmod command #The following is the description of this command

chmod +x /home/auto.sh #Give auto.sh executable permissions chmod -R 777 /home/wwwroot # Grant write permission to /home/wwwroot (required when installing some website programs) 4.mv command moves files

mv /home/wwwroot/abc.tar.gz /home/backup # Move abc.tar.gz to the backup directory 5.rm command delete files

rm test.tar.gz # Delete test.tar.gz, you will be prompted to confirm y. rm -rf /home/wwwroot/test # Delete the test directory without prompting. Do not use it indiscriminately. Remember. 6.tar command C packaging and X decompression files

tar zcvf test.tar.gz /home/wwwroot #Package /home/wwwroot tar zxvf tet.tar.gz # Decompress test.tar.gz in the current directory 7. Several other commonly used ones

cd Example: cd /home/wwwroot # Enter a directory ls # View files in the current directory echo nameserver 8.8.8.8 >> /etc/resolv.conf #Set dns to Google

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