I am creating an application that writes to a log file, and I need to know how in Linux / Bash to continuously display the log file to the screen (updating the screen with every new line put into the log).
我正在创建一个向日志文件写入的应用程序，我需要知道如何在Linux / Bash中不断地将日志文件显示到屏幕上(在日志中插入每一行时更新屏幕)。
So as an example, lets say I want to push a running log of apache/error.log to the screen (ssh terminal) continuously updating.
举个例子，假设我想推一个apache/error的运行日志。登录到屏幕(ssh终端)，不断更新。
5 个解决方案
#1
85
Try the tail command:
试着尾巴命令:
tail -f filename
#2
21
Another solution is
另一个解决方案是
less +F filename
or just less filename and typing "F" into it (pressing shift+f). It can be better than tail, because it allows you to cancel continuous printing temporary, go backward to look something and reenable it with "F" (shift+f) again
或者只输入更少的文件名并输入“F”(按shift+ F)。它可能比tail要好，因为它允许您暂时取消连续打印，向后查找并重新启用它，并再次使用F (shift+ F)
#3
9
The watch command can also be of use.
watch命令也可以使用。
watch tail logfile
Would show you the last 5 lines of the log file. It can be extended to any command which prints stuff to stdout.
将显示日志文件的最后5行。它可以扩展到任何输出到stdout的命令。
Yes, using tail -f is the traditional solution, but depending on what you are trying to do, this might work better.
是的，使用tail -f是传统的解决方案，但这取决于您要做什么，这可能会更好。
#4
6
You can also:
您还可以:
less filename.txt
and press 'F'
has one plus - you can anytime CTRL-C and scroll back in log and start watching again with the 'F'.
有一个加号-你可以随时按下CTRL-C并回滚到日志中，然后用“F”开始再次观看。
#5
5
ssh {remotehost} tail -n0f {logfile}
ssh {remotehost}尾-n0f {logfile}
This will give you zero lines initially, and continuously print any new lines that appear in the file.
这将使您最初得到零行，并连续地打印文件中出现的任何新行。
#1
85
Try the tail command:
试着尾巴命令:
tail -f filename
#2
21
Another solution is
另一个解决方案是
less +F filename
or just less filename and typing "F" into it (pressing shift+f). It can be better than tail, because it allows you to cancel continuous printing temporary, go backward to look something and reenable it with "F" (shift+f) again
或者只输入更少的文件名并输入“F”(按shift+ F)。它可能比tail要好，因为它允许您暂时取消连续打印，向后查找并重新启用它，并再次使用F (shift+ F)
#3
9
The watch command can also be of use.
watch命令也可以使用。
watch tail logfile
Would show you the last 5 lines of the log file. It can be extended to any command which prints stuff to stdout.
将显示日志文件的最后5行。它可以扩展到任何输出到stdout的命令。
Yes, using tail -f is the traditional solution, but depending on what you are trying to do, this might work better.
是的，使用tail -f是传统的解决方案，但这取决于您要做什么，这可能会更好。
#4
6
You can also:
您还可以:
less filename.txt
and press 'F'
has one plus - you can anytime CTRL-C and scroll back in log and start watching again with the 'F'.
有一个加号-你可以随时按下CTRL-C并回滚到日志中，然后用“F”开始再次观看。
#5
5
ssh {remotehost} tail -n0f {logfile}
ssh {remotehost}尾-n0f {logfile}
This will give you zero lines initially, and continuously print any new lines that appear in the file.
这将使您最初得到零行，并连续地打印文件中出现的任何新行。