Linux 在后台运行 SCP 并监控进度
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Run SCP in background and monitor the progress
提问by Tamas
I'm running an scpcommand in the background:
我scp在后台运行一个命令：
nohup scp file.gz root@target-host:/root/ > nohup.out 2>&1
I entered the password - I hit ctrl-zto halt the command and restarted it with bg, and I can confirm that it's running by executing jobs. However, is there a way of monitoring the progress of the file transfer (i.e. if I would be running it without placing it in the background)?
我输入了密码 - 我点击ctrl-z停止命令并用 重新启动它bg，我可以通过执行jobs. 但是，有没有办法监控文件传输的进度（即，如果我在不将其置于后台的情况下运行它）？
Thank you.
谢谢你。
回答by user1786911
Maybe you can redirect STDERRto file and use tail -fto monitor it
也许您可以重定向STDERR到文件并用于tail -f监视它
回答by user1277476
You could use screen(1) or similar, instead of bg.
你可以使用 screen(1) 或类似的，而不是 bg。
Then you can control-ad to detach and screen -d -r to reattach.
然后你可以 control-ad 分离和 screen -d -r 重新附加。
You can also log out and back in as needed, without losing the ability to reattach, so it's great over unreliable networks. It dates back to when people were doing Slip and PPP over serial modems.
您还可以根据需要注销并重新登录，而不会失去重新连接的能力，因此在不可靠的网络上非常有用。它可以追溯到人们通过串行调制解调器进行 Slip 和 PPP 时。
回答by user1277476
You could use screen(1) or similar, instead of bg.
你可以使用 screen(1) 或类似的，而不是 bg。
Then you can control-ad to detach and screen -d -r to reattach.
然后你可以 control-ad 分离和 screen -d -r 重新附加。
You can also log out and back in as needed, without losing the ability to reattach, so it's great over unreliable networks. It dates back to when people were doing Slip and PPP over modems, and before.
您还可以根据需要注销并重新登录，而不会失去重新连接的能力，因此在不可靠的网络上非常有用。它可以追溯到人们通过调制解调器进行 Slip 和 PPP 时，以及之前。
回答by user3284525
While running CentOS / Red Hat / Fedora, I simply use:
在运行 CentOS / Red Hat / Fedora 时，我只使用：
ps aux | grep scp
to check on the running scp processes. To see if they are doing anything, I like to use:
检查正在运行的 scp 进程。要查看他们是否在做任何事情，我喜欢使用：
du -s -c -h *
If you are on AWS EC2, you can switch to the section Instances to monitor network and r/w operations on the boot volume. To see what additional drives are doing, switch to the Monitoring tab in the Volumes section and select a volume.
如果您打开AWS EC2，您可以切换到实例部分以监视启动卷上的网络和 r/w 操作。要查看其他驱动器正在执行的操作，请切换到 Volumes 部分中的 Monitoring 选项卡并选择一个卷。
回答by Fingashpitzzz
You can use watch tail nohup.outfor that
您可以使用watch tail nohup.out该
回答by Hassan Raza
You can use tailcommand to see the output from nohup.out. Just write down the following command on terminal.
您可以使用tail命令查看 nohup.out 的输出。只需在终端上写下以下命令即可。
tail -n 10 -f nohup.out
尾 -n 10 -f nohup.out
-n 10 tells the number of lines at the end of contents to display.
-n 10 告诉要显示的内容末尾的行数。
-f tells the command to follow the nohup.out. Display every content which will be written to the file after executing command.
-f 告诉命令遵循 nohup.out。显示执行命令后将写入文件的每个内容。
回答by Tarang Bhalodia
回答by Aashutosh
nohup scp <file_name> user@<IP_Address>:<path>
nohup: ignoring input and appending output to 'nohup.out'
user@IP_address's password:
Ctrl+z
bg
disown -h %1
bg -> Send job to background.
bg -> 将作业发送到后台。
disown -h %1 -> this will let it run even when you log out of system
disown -h %1 -> 即使您退出系统，它也会让它运行
回答by ucsky
For me only using verbose mode will append something to nohup.out
对我来说只使用详细模式会附加一些东西 nohup.out
nohup scp -v file.gz root@target-host:/root/ > nohup.out 2>&1
After you can monitor using tail -f nohup.out
在您可以使用监控之后 tail -f nohup.out
