Some basic commands for linux

Posted By: Matpal Media - 8:40 AM
1. How to find disc space


sh-4.4$ df -h
                                                                                                                                       
Filesystem      Size  Used Avail Use% Mounted on                                                                                                       
overlay         440G   12G  406G   3% /                                                                                                                
tmpfs           126G     0  126G   0% /dev                                                                                                             
tmpfs           126G     0  126G   0% /sys/fs/cgroup                                                                                                   
/dev/sdb1       440G   12G  406G   3% /etc/hosts                                                                                                       
shm              64M     0   64M   0% /dev/shm                                                                                                         
tmpfs           126G     0  126G   0% /sys/firmware




2. How to find the linux name and version



sh-4.4$ uname -a 
                                                                                                                                      
Linux 73482bbdf7a0 3.10.0-514.26.2.el7.x86_64 #1 
SMP Tue Jul 4 15:04:05 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
                                      



3. How to find the last yum update



$ grep Updated: /var/log/yum.log | tail-5  
                                                                                                                                                                           


4. How to find the last rebooted time for linux


sh-4.4$ last reboot                                                                                                                                                                                                           
                                                                                                                                                                                                                              
wtmp begins Sun Jan 28 20:27:49 2018   
                                                                                                                                                                                       

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