linux-shell-黑马-bash的特性

 常见的快捷键

 常用的通配符

touch file{1..13}.jpg
ll file*.jpg

bash中的引号
 

echo "$(hostname)"    #server
echo "$(date +%F)"    #2021-10-11
echo "`date +%F`"    #2021-10-11
echo '$(hostname)'    #$(hostname)
echo "hello world"    #hello world
echo 'hello world'    #hello world