ls -a lists files with “->” arrow I think they are linked how can I make my new file to change when referenced file is changed?

I have following files: dirA/reference-file.ts dirB/new-file.ts I want new-file.ts to always change its content to match exact content as reference-file.ts when reference is changed. For example when I do ls -a in my dirB I get files with -> operator how can I replicate such behavior? screenshot example: Here is what I tried: I create…

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awk print pattern matched lines, and if a line with pattern1 has pattern2, then print line with pattern1 and nth line after as a single line

I currently have the output of a log, like the following. 20200124_075926.795633 [24_1859] [ERROR ] [PID] error running program: … … actual error message from n lines below … 20200124_075929.261693 [24_1859] [INFO ] [PID] blah 20200124_075929.374937 [24_1859] [PERF ] [PID] blah blah 20200124_075930.660998 [24_1859] [ERROR ] [PID] some error: 20200124_075956.793528 [24_1859] [ERROR ] [PID] error…

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Is it possible to run a script on power button press with systemd?

I looked around and didn’t found anything on this, for what I’ve seen, people always have been satisfied with what logind.conf is offering, here is the interesting part of man logind.conf: HandlePowerKey=, HandleSuspendKey=, HandleHibernateKey=, HandleLidSwitch=, HandleLidSwitchDocked= Controls how logind shall handle the system power and sleep keys and the lid switch to trigger actions such…

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