With the basics of Grep and how to use it for your daily tasks under your belt, you can now take your first step in understanding the command line and core UNIX utilities. Explore more of this very diverse and deep world by learninghow sed works in Linux. ...
What does the tty command do? It prints the name of the terminal you're using. TTY stands for "teletypewriter." What's the story behind the name of the command? That takes a bit more explaining. Teleprinters From the 1800s In the 1830s and 1840s, machines known as teleprinters were...
This typically happens when the second command does not handle data input through Standard In (stdin) correctly (eg: Multiple lines as input, the way the lines are setup, the characters used as input, multiple parameters as input, the data type received as input, etc..). To give you a ...
As soon as you start to learn about Linux and Unix-like operating systems, you'll come across the termsstdin,stdout, andstederr. These arethree standard streamsthat are established when a Linux command is executed. In computing, a stream is something that can transfer data. In the case of...
A Linux system is really low on memory if thefreevalue in-/+ buffers/cache:line gets low. For more details about the meaning of the numbers, see e.g. the questions:
Don't go by its size.BusyBoxhas scope for sed and awk like classic editors (stripped down version again) and it contains its own shell too. It even contains an init command which can be launched as PID 1. This means that BusyBox can be configured as an alternative to Systemd, OpenRC...
Red Hat Enterprise Linux (RHEL) 7 Issue We have an unusablerpmdband wanted to know what packages were installed. Is there a way to do so? Resolution There are data left after installation usingyumin/var/lib/yum/yumdb/. Those can be parsed to provide at least partial (e.g. in case th...
In Linux, run the following command to remove GTID_PURGED statements: awk '{if(index($0,"GTID_PURGED")) { getline;while(length($0) > 0) { getline; } }else{print$0} }' your.sql | grep -iv 'set@@' > your_revised.sql Check permissions of your accou...
I get that it's just a windows process to do with print jobs if it's in the right folder - but why does it need to access the internet? Sasja My laptop was in a holt, as "spoolsv.exe" was taking 98% of CPU. It was due to few pending print jobs in a printer. I tried to...
One thing you can do is tweak your CI pipeline so all it does is compile, run tests and package everything up. And then create a CD pipeline thatonlygets triggered after a successful CI run that does the provision PR staging slot, deploy to slot ...