有点晚了。你可以用xargs:

ls *.html | xargs -I {} sh -c 'mv $1 `basename $1 .html`.txt' - {}

或者你所有的文件都在某个文件夹里

ls folder/*.html | xargs -I {} sh -c 'mv $1 folder/`basename $1 .html`.txt' - {}

不幸的是，可移植并不是一件简单的事情。你可能需要一点魔法。

for file in *.html; do echo mv -- "$file" "$(expr "$file" : '\(.*\)\.html').txt"; done

一旦你满意了，就把回声移开，它会按你想的做。

Edit: basename对于这种特殊情况可能可读性更好一些，尽管expr通常更灵活。

如果使用bash，则不需要使用sed、basename、rename、expr等外部命令。

for file in *.html
do
  mv "$file" "${file%.html}.txt"
done

这为我工作在OSX从.txt到.txt_bak

find . -name '*.txt' -exec sh -c 'mv "$0" "${0%.txt}.txt_bak"' {} \;

这是一次修改多个扩展的好方法:

for fname in *.{mp4,avi}
do
   mv -v "$fname" "${fname%.???}.mkv"
done

注意:注意在扩展的大小是相同的(??)

我用。bashrc写了这段代码

alias find-ext='read -p "Path (dot for current): " p_path; read -p "Ext (unpunctured): " p_ext1; find $p_path -type f -name "*."$p_ext1'
alias rename-ext='read -p "Path (dot for current): " p_path; read -p "Ext (unpunctured): " p_ext1; read -p "Change by ext. (unpunctured): " p_ext2; echo -en "\nFound files:\n"; find $p_path -type f -name "*.$p_ext1"; find $p_path -type f -name "*.$p_ext1" -exec sh -c '\''mv "$1" "${1%.'\''$p_ext1'\''}.'\''$p_ext2'\''" '\'' _ {} \;; echo -en "\nChanged Files:\n"; find $p_path -type f -name "*.$p_ext2";'

在"/home/<user>/example-files"这样的文件夹中:

/home/<用户> /示例文件: 中 file2.txt file3.pdf file4.csv

命令的行为是这样的:

~$ find-text
Path (dot for current): example-files/
Ext (unpunctured): txt

example-files/file1.txt
example-files/file2.txt


~$ rename-text
Path (dot for current): ./example-files
Ext (unpunctured): txt
Change by ext. (unpunctured): mp3

Found files:
./example-files/file1.txt
./example-files/file1.txt

Changed Files:
./example-files/file1.mp3
./example-files/file1.mp3
~$