Command line environment
约 50 字小于 1 分钟
2026-06-08
ls -l project -l?
ls -a
ls -h
ls **/*.py
bash -c 'echo $DEBUG'
ls noneexistent 2> /dev/null
echo $?
grep -q 1 numbers.txt && echo "Pattern found"
grep -q 1 numbers.txt || echo "Pattern not found"
sleep 60
signals