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Tag: linux

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 …

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 c…

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 …

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 proces…

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

htaccess misconfiguration 500

So basically i created a .htaccess file which removes .html extension and redirects /file.html to /file but when i write /file.html/ it causes a 500 internal server error, How can I map/file.html/ to my custom error page ? or simply redirect that also to /file.html Here is the code : Answer With your shown sa…