您可以在脚本的顶部添加这一行：

#!/bin/bash
# redirect stdout/stderr to a file
exec >logfile.txt 2>&1

否则仅重定向标准输出用途：

exec > logfile.txt

我试着使用下面的命令来管理。这将在日志文件中写入输出，并在控制台上打印。

#!/bin/bash

# Log Location on Server.
LOG_LOCATION=/home/user/scripts/logs
exec > >(tee -i $LOG_LOCATION/MylogFile.log)
exec 2>&1

echo "Log Location should be: [ $LOG_LOCATION ]"

**请注意：**这是bash代码，所以如果你使用sh运行它，它会抛出语法错误。

您可以使用子shell轻松地将shell脚本的不同部分重定向到一个文件（或多个文件）：

{
  command1
  command2
  command3
  command4
} > file1
{
  command5
  command6
  command7
  command8
} > file2

LOG_LOCATION="/path/to/logs"    
exec >> $LOG_LOCATION/mylogfile.log 2>&1

#!/bin/sh
# http://www.tldp.org/LDP/abs/html/io-redirection.html
echo "Hello World"
exec > script.log 2>&1
echo "Start logging out from here to a file"
bad command
echo "End logging out from here to a file"
exec > /dev/tty 2>&1 #redirects out to controlling terminal
echo "Logged in the terminal"

输出量：

> ./above_script.sh                                                                
Hello World
Not logged in the file
> cat script.log
Start logging out from here to a file
./logging_sample.sh: line 6: bad: command not found
End logging out from here to a file

在此阅读更多信息：http://www.tldp.org/LDP/abs/html/io-redirection.html

要在控制台上获取输出并在文件中记录输出，请执行以下操作：

script.sh

#!/bin/bash
(
  #Command 1
  #Command 2
  #Command 3
  ...
) 2>&1 | tee /path/to/save/console_output.log