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Linux terminal (chmod - change file permissions (modes (7- r wx, 6 - rw, 5…
Linux terminal
chmod - change file permissions
chmod 'mode' 'file'
modes
7- r wx
6 - rw
5 - rx
4 - r
3 - wx
2 - w
1 - x
Order of mode permissions
User Group Other
Disk Maintainence
log cleanup
Force system check
sudo touch /forcefsck
IP configuration
iwconfig - view/change wnc's
ipconfig - view/configure nic and ip
dd
Convert and copy a file
dd if=<source file name> of=<target file name> [opt.]
Create a disk image
dd if=/dev/sda of=/tmp/sda-image.img
Restoring an image is rev
chown - change file ownership & group
sudo chown [owner:group] file
grep - Find text in a file