## OS Lab - Week2

Q2. 
	- `grep -E '^..$' *` (finds all the files in the folder with exactly two characters)
	- `grep '^[A-Z]' *`
	- `grep '\.$' *`
	- `grep ' ' *`
	- `grep '[0-9]' filename > outputfile`

Q3. 	- `grep -c "ICT" ITStudents.txt`
	- `sed 's/:IT:/:Information Technology:/g' students.txt > ITStudents.txt`
	- `sed awk -F: '$1 == "1234" { avg = ($6 + $7 + $8) / 3; print avg }' students.txt`
	- `awk 'NR==1 { print toupper($0) } NR>1 { print }' students.txt`


Q4.	- `grep "MIT" * | sed 's/MIT/Manipal Institute of Technology/g' | cut -d':' -f1,2`

Q5.	- `find . -type f -name '*[0-9]*' -exec wc {} +`

Q6. 	- `for i in {1..5}; do wc example.txt & done`
	- `pkill wc`