Linux 操作系统因其强大的命令行界面和灵活性而闻名。对于高级用户来说,学习命令行和脚本的进阶知识可以极大地增强他们的能力。
cat /etc/passwd | grep root
ls -l > my_output.txt
find / -name ".txt" | xargs rm
awk '{print $1}' my_data.txt
sed 's/old_word/new_word/' my_file.txt
my_variable=10
if [ $my_variable -gt 0 ]; then echo "Positive"; fi
for i in {1..10}; do echo $i; done
my_function() { echo "Hello, world!"; }
trap "echo 'Error occurred!'" EXIT
find / -name ".txt" -print0 | sort -rz0 | uniq -1 -z | xargs -0 rm -f
mkdir my_dir && chmod 755 my_dir
tar -cvzf my_backup.tar.gz /
ssh user@server1 "command1" | ssh user@server2 "command2"
watch -n 1 "top -b -n 1"
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