BashBites:How to Append Outputs to a File
BashBites:How to Append Outputs to a File
技术小黑屋
发布于 2018-09-04 16:23:58
发布于 2018-09-04 16:23:58
Is there any way to append output(debugging information) to a existings file? As we all know in bash the command ‘>’ will write ouputs to a file.However this command will also erase the existing data it the file. Of course bash provides a command that appends outputs to a file.It resembles ‘>’.It’s ‘>>’ The following is a piece of example code.
Let’s look at >
1 2 3 4 5 6 7 8 | [androidyue@androidyue tmp]$ touch a.txt [androidyue@androidyue tmp]$ cat a.txt [androidyue@androidyue tmp]$ echo "ABC" > a.txt [androidyue@androidyue tmp]$ cat a.txt ABC [androidyue@androidyue tmp]$ echo "DEF" > a.txt [androidyue@androidyue tmp]$ cat a.txt DEF |
|---|
Well,Let’s look at the exiciting command >>
1 2 3 4 | [androidyue@androidyue tmp]$ echo "GHI" >> a.txt [androidyue@androidyue tmp]$ cat a.txt DEF GHI |
|---|
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