031071's questions

Подскажите код, переименовать группу файлов?
К примеру, сейчас так:
Princess of the Dawn - Accept.mp3
Cradle Of Love - Billy Idol.mp3   
Sweet Sixteen - Billy Idol.mp3
Livin On A Prayer - Bon Jovi.mp3  
Runaway - Bon Jovi.mp3
The Unforgiven - Metallica.mp3
Send Me An Angel - Scorpions.mp3
Still Loving - Scorpions.mp3

Хочу так:
Accept - Princess of the Dawn.mp3
Accept - Time Machine.mp3
Billy Idol - Cradle Of Love.mp3
Billy Idol - Sweet Sixteen.mp3
Bon Jovi - Livin On A Prayer.mp3
Bon Jovi - Runaway.mp3
Metallica - Nothing Else Matters.mp3
Metallica - The Unforgiven.mp3
Scorpions - Send Me An Angel.mp3
Scorpions - Still Loving.mp3

P.S чем лучше это делать: sed, awk, rename, basename?
Система macOS.

我在互联网上找到了如何做到这一点：

basename -s .txt *.txt | xargs -n1 -i mv {}.txt {}.sh
xargs: illegal option -- r
usage: xargs [-0opt] [-E eofstr] [-I replstr [-R replacements]] [-J replstr]
             [-L number] [-n number [-x]] [-P maxprocs] [-s size]
             [utility [argument ...]]

我在habr上找到了一个选项：

ls | sed -e "p;s/.txt/.sh/" | xargs -2 -fmv
xargs: illegal option -- 2
usage: xargs [-0opt] [-E eofstr] [-I replstr [-R replacements]] [-J replstr]
             [-L number] [-n number [-x]] [-P maxprocs] [-s size]
             [utility [argument ...]]
rename 's/.txt/.sh/g' *.txt
-bash: rename: command not found

man rename - open 我做错了什么？PS OS X 系统

再会！

有一个文件：test.txt

• 啊啊啊啊
• 万维网
• cccccccc
• dddddddddd
• eeeeeeee
• 呸呸呸呸

你需要这样做并保存它。（例如，将第 5 行移动到第 15 行）

• 啊啊啊啊
• cccccccc
• dddddddddd
• eeeeeeee
• 万维网
• 呸呸呸呸

PS OS X系统，不知道有没有关系...