I have to come up with a solution to delete all files but the newest 2 in a directory stucture of our owncloud. The be exact – its the file versioning folder. There are files in one folder with the following structure: Filename.Ext.v[random_Number] The hard part is that there are different files in one folder I need to keep. IE:
Tag: bash
mkdir makes wrong directory names when used with cut on *.tex files
When make directories for each file with certain extension: …everything works just fine. However if I do it for .tex files I get following results: I just wanted to clean my latex directory and I get weird directory names. Why is that and how to make it work? Answer It is error prone to use output from ls like this.
Executable Unix script cannot be found by which command
I have a Unix bash script written by a former teammate that must be in my PATH, though I can’t find it by manual inspection (see below). I can however execute it anywhere by just typing I would like to view and edit this script. However, when I try to find it via the which command, I get a blank
AWK script automatically removing leading 0s from String
I have a file BLACK.FUL.eg2: I’ve written this AWK script: which gives me an output of: with one problem: the leading 0s of strings in field1, are automatically getting removed due to a numeric operation on them. So my actual expected output is: For that I’m trying the below updated AWK script: But getting an error: Can you please highlight
How can I control the number of running processes?
I’m doing a shell script and the unknown situation occurred. I must execute a certain number of processes, lets suppose 12. But I want to limit the executions by ‘t’ each time. So if ‘t’ is 3 I would have to execute 3 processes then 3, 3 and finally 3. But I would like to do it automatically, so I
How to open new bash terminal using Python
I am trying to open a new terminal window in Tkinter application. I’ve used os.system(“/bin/bash”) but it works in current bash only. Which stops runnning code and causes application freeze. I want to open new Terminal. How to do that? gedit like programs work fine without disturbing current apllication. Answer Try this:
Why is execvp() executing twice using fork()?
I am implementing a shell. When attempting a command other than changing directories, execvp() runs, the child terminates and a new child is created. When I change directories, the child does not terminate and a new child is created. Here is a sample of my code: cd ../; ls; runs correctly, except I have to Ctrl+D twice to end the
How to find if remote host is reachable over SSH without actually doing ssh
I have multiple remote hosts connected to my local host (server-A). TO ensure/filter the list of hosts which are genuinely reachable to localhost , I do ping test. However ping test could not provide me any check to ensure that filtered remotehost-IPs are reachable over SSH connection /port 22. Query: Above check work for me if connection is refused. However,
hard-coded bin path and NixOS
When I try to do a manual source install of some software on NixOS 15.09, I get (sh -x is to get an exec log): And indeed there is no bash program in /bin/ However when I inspect the script I dont see any mention of it so it must be some subprogram looking for it. As an aside, I
(Scp – Permission Denied (Public Key) [closed]
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