● online inquiry and help command (1)
help 如：mkdir --help
● file and directory operations command (12)
ls tree pwd mkdir rmdir cd touch cp mv rm ln find
● View files and content processing command (21)
cat tac more less head tail cut split paste sort uniq wc iconv dos2unix file diff vimd ff chattr lsattr rev grep
● file compression and decompression command (4)
tar unzip gzip zip
● display command information (12)
uname hostname dmesg uptime file stat du df top free date cal
● Search File command (4)
which find whereis locate
● User Management Commands (10)
useradd usermod userdel groupadd passwd chage id su visudo sudo
● basic network operation commands (10)
telnet ssh scp wget ping route ifconfig ifup ifdown netstat
●-depth network operations command (6)
lsof route mail mutt nslookup dig
● order the disk file system (8)
mount umount df du fsck dd dumpe2fs dump
● shutdown commands and view system information (3)
shutdown halt init
● System management related commands (8)
uptime top free vmstat mpstat iostat sar chkconfig
● system security related commands (10)
chmod chown chgrp chage passwd su sudo umask chattr lsattr
● View system user login information command (7)
whoami who w last lastlog users finger
● view the hardware information related commands (8)
ifconfig free fdisk ethtool mii-tool dmidecode dmesg lspci
● other (19)
echo printf rpm yum watch alias unalias date clear history eject time nohup nc xargs exec export unset type
● Advanced Performance Monitoring System command (12)
Memory: top free vmstat mpstat iostat sar
CPU:top vmstat mpstat iostat sar
I/O:vmstat mpstat iostat sar
进程:ipcs ipcrm lsof strace lstrace
负载:uptime mount umount df du fsck dd dumpe2fs dump
● shutdown commands and view system information (3)
shutdown halt init
● System management related commands (8)
uptime top free vmstat mpstat iostat sar chkconfig
● system security related commands (10)
chmod chown chgrp chage passwd su sudo umask chattr