Sed可以对地址进行操作:

$ sed -i '1s/^/<added text> /' file

每个答案上神奇的1是什么?行解决!

想在前10行添加<添加的文本> ?

$ sed -i '1,10s/^/<added text> /' file

或者你可以使用命令分组:

$ { echo -n '<added text> '; cat file; } >file.new
$ mv file{.new,}

我找到的最简单的解决方法是:

echo -n "<text to add>" | cat - myFile.txt | tee myFile.txt

注:

Remove | tee myFile.txt if you don't want to change the file contents. Remove the -n parameter if you want to append a full line. Add &> /dev/null to the end if you don't want to see the output (the generated file). This can be used to append a shebang to the file. Example: # make it executable (use u+x to allow only current user) chmod +x cropImage.ts # append the shebang echo '#''!'/usr/bin/env ts-node | cat - cropImage.ts | tee cropImage.ts &> /dev/null # execute it ./cropImage.ts myImage.png

在文件顶部添加一行:

sed -i '1iText to add\'

嗨，用马车回:

sed -i '1s/^/your text\n/' file

Cat连接多个文件。<()将命令的输出作为文件发送。结合这两者，我们可以在文件的开头和结尾插入行，

cat <(echo "line before the file") file.txt <(echo "line after the file")

Sed可以对地址进行操作:

$ sed -i '1s/^/<added text> /' file

每个答案上神奇的1是什么?行解决!

想在前10行添加<添加的文本> ?

$ sed -i '1,10s/^/<added text> /' file

或者你可以使用命令分组:

$ { echo -n '<added text> '; cat file; } >file.new
$ mv file{.new,}