Linux 자주 사용하는 명령어 모음 (touch, echo, cat, grep, ls, tail, cut)

touch filepath

echo hello > sample.txt

echo hello >> sample.txt

cat sample.txt

cat sample1.txt sample2.txt

cat > sample.txt

cat >> sample.txt

grep keyword sample.txt

cat sample.txt | grep apple | grep delicious

ls -a | grep filename

tail -f sample.log | grep some_message

cut -d: -f1 /etc/passwd