Unix Boot Process
1. BIOS - Basic Input/Output System execute MBR
2. MBR - Master Boot Record executes GRUB
3. GRUB - Grand Unified Bootloader Execute Kernel
4. KERNEL - Kernel execuites /sbin/init
5. INIT - Executes runlevel programs
6. RUNLEVEL - Runlevel programes are executed from /etc/rc.d/rc*.d/
du -sk /var/* 2> /dev/null | sort -rn
du -sk *|sort -n Search for large files in directory
du -sk *|sort -n Search for large files in directory
Files larger than 100000
/var/log/tmp/list_of_files.txt
find / -type f -size +100000 -exec ls -lh {} \; 2> /dev/null | awk '{ print $NF ": " $5 }' | sort -nk 2,2 &> /var/log/tmp/list_of_files.txt
Find large files in Unix
1. du -sk *|sort -n
2. du -a /var | sort -n -r | head -n 10
3. find -type f -exec du -Sh {} + | sort -rh | head -n 5
[root@tes01vr usr1]# find -type f -exec du -Sh {} + | sort -rh | head -n 5
28G
14G
12G
3.6G
3.6G
Use zgrep to search word in .gz file
root@Boston# zgrep myfile *.gz |grep down | more
$ zcat file.gz | grep word-to-search
zgrep myfile *.gz |grep up | more
$ zcat file.gz | grep word-to-search
zgrep myfile *.gz |grep up | more
Create a TAR file
tar -zcvf axway.bkp.tar.gz axway
Untar file
tar -zxvf share.tar.gz
Where does win10 stores profile pictures
C:\Users\username\AppData\Roaming\Microsoft\Windows\AccountPictures
C:\Users\myname\AppData\Roaming\Microsoft\Windows\AccountPictures
The Default Account Pictures are stored here:
C:\ProgramData\Microsoft\User Account Pictures
C:\Users\mydesk >shutdown -r -f -t 00 -m 10.200.159.250
