linuxbashredirectstreampipe 答案 cmd >>file.txt 2>&1 Bash 从左到右执行重定向,如下所示: >>file.txt:在附加模式下打开file.txt在那里重定向stdout。 2>&1:将stderr重定向到“stdout当前的位置”。在这种情况下,这是一个以追加模式打开的文件。换句话说,&1重用stdout当前使用的文件
使用如下命令即可 exec > >(teeSTDOUTFILE) 2> >(teeERRFILE >&2) 解释:exec(shell内置命令,使用help exec查看说明) 重定向符号,将stdout的一份重定向到了STDOUTFILE文件中,后边将stderr重定向到ERRFILE中,并将tee的stdout重定向到stderr(tee能做的事情就是将接收的内容一份输出的stdout,一份输出到指定的文...
root@instance-2:~# man bash|grep"/dev/tcp"-A5/dev/tcp/host/port If host is a valid hostname or Internet address,and port is an integer port number or service name,bash attempts to open the correspondingTCPsocket./dev/udp/host/port If host is a valid hostname or Internet address,and...
1、How to redirect stderr and stdout to different files in the same line of bash? http://stackoverflow.com/questions/7901517/how-to-redirect-stderr-and-stdout-to-different-files-in-the-same-line-of-bash
1 -stdout，标准输出流。 2 -stderr，标准错误流。 文件描述符只是代表打开文件的数字。 输入流通常通...
echo that outputs to stderr是否有一个标准的bash工具像echo一样工作,但输出到stderr而不是stdout?我知道我可以做echo foo 1>&2,但它有点难看,而且,我...
Now you are ready to execute your first bash script: ./hello_world.sh 2. Simple Backup bash shell script #!/bin/bash tar -czf myhome_directory.tar.gz /home/linuxconfig 3. Variables In this example we declare simple bash variable and print it on the screen ( stdout ) with echo comman...
Each shell command returns an exit code when it terminates. The exit command is used to exit a shell with a given status. If you have any questions or feedback, feel free to leave a comment. bash terminal Related Tutorials Bash read Command How to Redirect stderr to stdout in Bash Bash...
编译时间失败时,编程语言晶体当前不会写信给stderr。如果退出状态不是0并仍返回退出状态,我需要将Stdout重定向到STDERR。看答案 从字面上看,您的要求实际上是不可能的:重定向是在命令启动之前执行的,而退出状态仅在退出时才知道。但是,你可以 无条件 重定向到缓冲区,然后在已知退出状态后将该缓冲区写入Stdout或...
However, it's possible to alter these input and output locations, causing the computer to get information from somewhere other than stdin or send the results somewhere other than stdout. This functionality is referred to as redirection.In this article, you'll learn five redirect operators, ...