To kill the outer loop I usually add a sleep command and press CTRL-C some more times: while :; do LONGTIME_COMMAND; sleep 1; done. Please notice: the colon behind while is interpreded as TRUE, so this is an endless loop.

I have a program which produces useful information on stdout but also reads from stdin. I want to redirect its standard output to a file without providing anything on standard input. So far, so goo...

Apr 9, 2021 · You can use just if curl ...; then break; fi here, if you don't need the return value of curl for anything else. Also, in while [ true ], the test checks if true is a non-empty string. It obviously is, so this does work in giving an endless loop. But [ false ] would also be always true, so a test like that is perhaps a bit misleading. Could use while true; do instead.

I'm writing a device driver that prints error message into ring buffer dmesg output. I want to see the output of dmesg as it changes. How can I do this?

Just use the journalctl command, as in: journalctl -u service-name.service Or, to see only log messages for the current boot: journalctl -u service-name.service -b For things named <something>.service, you can actually just use <something>, as in: journalctl -u service-name But for other sorts of units (sockets, targets, timers, etc), you need to be explicit. In the above commands, the -u flag ...

FYI BSD solved this decades ago. Scroll lock will pause any scrolling buffer in any terminal or screen. Where is this in linux!!!!!

Nov 25, 2016 · I'm running Fedora 20 and would like to see what my firewall is doing in the background. Is it possible to view a log of the traffic blocked by FirewallD?

Here is a picture of the boot process: There's still a prompt for the LUKS password (or Yubikey pin) and the disk seems to be decrypted fine after entering. However, afterwards there's an endless systemd start job for the LVM volume containing the root partition. Here are the partitions incl. UUIDs. The root partition resides in a LUKS container:

OpenSSH will not terminate a shell session that has been idle for some time. This is not something that OpenSSH does. Terminating an idle shell session is unrelated to the configuration of OpenSSH. The settings that you are showing are related to timeouts when the connection goes down and are unrelated to the shell on the remote host and what the user is doing or not doing there. The remote ...

During boot my laptop says: fsck died with status code 4 The man page tells me: The exit code returned by fsck is the sum of the following conditions: [..] 4 - File system errors left uncorrec...