why? because its fast and putty is an awesome tool 
GUI is for noobs 
Getting your way around linux
Find details about the system
Which linux is it anyways?
How many RAMs?
How many GHz?
Storage real estate??
Disk usage of mounted file systems
size of files and folders
you all know 'ls -lh' right?
list all block devices (hdds)
list all cpus
list all usb devices
list all scsi devices
List all pci devices
check a process id and other details
find a specific process and its threads
Kill the bugger
find the pid of httpd
annihilate httpd
Network information
starting and stopping a service
network port stat
who is using my_file?
GUI is for noobs Getting your way around linux
Find details about the system
Code:
[root@MaxRepOS ~]# uname -r
2.6.32-279.22.1.0.2.el6.x86_64
[root@MaxRepOS ~]# uname -a
Linux MaxRepOS 2.6.32-279.22.1.0.2.el6.x86_64 #1 SMP Mon Feb 17 00:19:26 PST 2014 x86_64 x86_64 x86_64 GNU/LinuxWhich linux is it anyways?
Code:
[root@MaxRepOS ~]# ls /etc/*-release
/etc/oracle-release /etc/redhat-release /etc/system-release
[root@MaxRepOS ~]# cat /etc/*-release
Oracle Linux Server release 6.3
Red Hat Enterprise Linux Server release 6.3 (Santiago)
Oracle Linux Server release 6.3How many RAMs?
Code:
cat /proc/meminfoHow many GHz?
Code:
cat /proc/cpuinfoStorage real estate??
Code:
cat /proc/mounts
or
mountDisk usage of mounted file systems
Code:
[root@MaxRepOS ~]# df -kh
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/3600508e000000000ab19d6de8bea280fp1
444G 3.0G 418G 1% /
tmpfs 32G 20K 32G 1% /dev/shm
/dev/mapper/3600508e0000000009076d213344a250cp1
550G 432M 521G 1% /home
/dev/mapper/3600508e000000000ab19d6de8bea280fp2
75G 180M 71G 1% /var/crashsize of files and folders
Code:
[root@MaxRepOS ~]# du -sh *you all know 'ls -lh' right?
list all block devices (hdds)
Code:
[root@MaxRepOS ~]# lsblklist all cpus
Code:
[root@MaxRepOS ~]# lscpulist all usb devices
Code:
[root@MaxRepOS ~]# lsusblist all scsi devices
Code:
[root@MaxRepOS ~]# lsscsi
[0:0:0:0] disk HITACHI H106060SDSUN600G A2B0 -
[0:0:1:0] disk HITACHI H106060SDSUN600G A2B0 -
[0:0:2:0] disk HITACHI H106060SDSUN600G A2B0 -
[0:0:3:0] disk HITACHI H106060SDSUN600G A2B0 -
[0:1:0:0] disk LSI Logical Volume 3000 /dev/sdb
[0:1:1:0] disk LSI Logical Volume 3000 /dev/sdaList all pci devices
Code:
[root@MaxRepOS ~]# lspcicheck a process id and other details
Code:
ps -ef | grep httpfind a specific process and its threads
Code:
ps -eLf | grep httpKill the bugger
Code:
[root@MaxRepOS ~]# pkill httpdfind the pid of httpd
Code:
[root@MaxRepOS ~]# pgrep httpdannihilate httpd
Code:
[root@MaxRepOS ~]# kill -9 `pgrep httpd`Network information
Code:
[root@MaxRepOS ~]# ifconfigstarting and stopping a service
Code:
/etc/init.d/httpd (start|stop|restart|status)
[root@MaxRepOS ~]# /etc/init.d/httpd status
httpd (pid 4574) is running...network port stat
Code:
[root@MaxRepOS ~]# netstat -apn | grep httpd
tcp 0 0 :::8080 :::* LISTEN 4574/httpd
tcp 0 0 :::80 :::* LISTEN 4574/httpd
tcp 0 0 :::443 :::* LISTEN 4574/httpdwho is using my_file?
Code:
lsof | grep my_file
Last edited:
typo in title. @mods please save me from grammar nazis.