有一个非常简单的方法:

echo "your header" > headerFile.txt
cat yourFile >> headerFile.txt

你可以用cat -

printf '%s' "some text at the beginning" | cat - filename

别名是另一种解决方案。添加到你的init rc/ env文件:

addtail () { find . -type f ! -path "./.git/*" -exec sh -c "echo $@ >> {}" \; }
addhead () { find . -type f ! -path "./.git/*" -exec sh -c  "sed -i '1s/^/$@\n/' {}" \; }

用法:

addtail "string to add at the beginning of file"
addtail "string to add at the end of file"

echo -n "text to insert " ;tac filename.txt| tac > newfilename.txt

第一个tac反向传输文件(最后一行先传输)，因此“要插入的文本”出现在最后。第2个tac再次将其换行，因此插入的行位于开头，原始文件保持原始顺序。

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

我的观点是:

sed  -i '1i /path/of/file.sh' filename

即使字符串中包含正斜杠"/"