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How do i get the debug/return strings out of bluethootctl

How can i retrieve those two lines: Changing discoverable off succeeded [CHG] Controller 64:6E:69:F4:9E:72 Discoverable: no Basically grabbing the output or other possible error outputs and discarding the rest of the garbage I’m attempting to do a fork of a very simple bluethooth dmenu bash script, and I am being somewhat successful at it, but since I’ve considered releasing it

condition match with find and if else in bash

I want to see the files which are before 15 days modified into a directory. if not found before 15 days, then look for 10 days before. My Attempt Answer FileList is a string which holds the names of all files (separated by spaces), for instance something like /var/log/foo /var/log/bar. You then test in your condition whether you have one

Traversing a directory using Makefile

I am making use of a makefile to traverse a directory , store the file names in a variable , extract the file number using regex and print the file number . Below is the code block I am using : LINE 7 is the command in makefile I want to include in the for loop. I want the actual

Why tm_gmtoff field of struct tm is not documented in man page?

I need to get the difference between UTC and the local time using GCC on Linux. It seems that the preferred way is to examine tm_gmtoff field of a struct tm returned by localtime function. https://stackoverflow.com/a/47218792 However, tm_gmtoff is not documented in the man page of localtime, but only tm_zone is. https://man7.org/linux/man-pages/man3/localtime.3.html It looks like tm_gmtoff and tm_zone exist in

How to parse fix message to JSON format by Linux command [closed]

Closed. This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed 1 year ago. Improve this question I have fix message file that would needed to be converted to JSON format, like below. How can I use a shell script to convert

Explain pipe and fork output

I am dealing with pipe and fork in Linux for the first time and I would be happy if someone could explain to me the output of the following program: (which line of code causes the output and is it through the son process or the parent process) The output of the program is: Answer fork() creates a child process

Remove specific value in R or Linux

Hi I have a file (tab sep) in terminal that has several columns as below. You can see last column has a comma in between followed by one or more characters. 1 100 Japan Na pa,cd 2 120 India Ca pa,ces 5 110 Japan Ap pa,cres 1 540 China Sn pa,cd 1 111 Nepal Le pa,b I want to keep

Problem filtering 2 files using AWK for a given condition

First of all, thank you for your help. I have a problem filtering 2 files using AWK conditionals. The two files I want to filter are these one: Fasta.fa species_id (the file is larger and contain the name of different species) I want to use awk so it puts in fasta.fa the name of the species if both $2 in

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