Linux Misc Commands

Question 1

Disable history logging

Answer 1

unset HISTFILE

Question 2

Record remote mic

Answer 2

ssh user@ arecord - | aplay -

Question 3

Compile C,C++

Answer 3

gcc -o outfile myfile.c

Question 4

Reboot

Answer 4

init 6

Question 5

Shutdown

Answer 5

init 0

Question 6

List of log files

Answer 6

cat /etc/syslog.conf | grep -v “^#”

Question 7

Strip links in url.com

Answer 7

grep ‘href=’ | cut -d”/” -f3 | grep | sort -u

Question 8

Make random 3MB file

Answer 8

dd if=/dev/urandom of= bs=3145728 count=100