shell

I would like one of my hosts to broadcast occasional periodic signals to a shell script running on other host(s) on the same LAN. I'm currently reading about various IoT protocols, but I'm wondering what the more traditional approaches were for this kind of messaging. Ideally, I'd want some...

I'd liked to use the 'a' function of sed to append something after a given line in a file. For instance, I want to add "ListenAddress xx.xx.xxx.xxx" after the line that begins with "#ListenAddress" in a copy of sshd_config: Using sh I do: # IP=xx.xx.xxx.xxx # sed -E -i ""...

If I execute the command: setenv PATH "/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin:/root/bin:/root/.cargo/bin" after going into the jail by "jexec 1", it would work. However, I'd like to make it sticky. I tried many ways but nothing works. Further, preferably, I'd like to do...

How would I change the text color in shells/ion shell? The color for some texts is too similar to the background on my display. From the directory, /usr/local/share/doc/ion/: migrating.md variables/07-namespaces.md has a lot of information on color schemes for Ion. When I switch to a...

I'm trying to extract from a tarball. (I don’t need help with that.) But I get this nonsense: Pathname can’t be converted from UTF-8 to current locale When I enter the command locale the LANG= line is empty. Hoo boy Yup! everything that's easy in any version of linux is like being...

FreeBSD 12.1 - Updated System & "su" root user no longer shows root@domain.tld; blank # I am not sure what happened or how to revert the changes that a system "pkg upgrade" did to my installation. I used to ssh in and get user@domain.tld ... then issue "su" and get "root@domain.tld" ; now it's...

Hi I have written some shell scripts (bourne shell not bash) for basic video and audio editing tasks with ffmpeg A lot of the open source video editors dont really compare to Final Cut Pro or Davinci Resolve, and can be difficult to get hardware encoding working Thats why i decided to write...

so this script can alter the url to data64 encoding by matching in css file background-image: url(afdsf.png). some contribute this: echo 'background-image: url("../images/doesntmatter/imgDoesNotMatter.png");' | sed -r 's,background-image\s*:\s*url\("(.+)"\);,\1,'...

I am looking to parse a file for specific content that is on a line that always has a specific beginning, for example: "Program: code" I want to extract code on the line that starts with Program. I then want to add that extracted string into an already created file. Can anyone provide some...

I would like to share HOWTO in Ghost in the Shell series about efficient working in the UNIX shell environment. Ghost in the Shell - Part 4 https://vermaden.wordpress.com/2019/03/15/ghost-in-the-shell-part-4/ Regards, vermaden

Hi! /bin/sh (Almquist shell) with vi mode (set -o vi) starts every new line at insert mode. So I must press Esc every new prompt if I want to go through history. Is it possible to start shell prompts with "vi command (normal) mode"?

I would like to share HOWTO in Ghost in the Shell series about efficient working in the UNIX shell environment. Ghost in the Shell - Part 3 https://vermaden.wordpress.com/2018/09/15/ghost-in-the-shell-part-3/ Regards, vermaden

Hi. I like to know, is there is a chance to see images, pdf, and videos on the console (no X running) with the framebuffer on FreeBSD like there is on my Gentoo with fbi, fbgs and mplayer. Looks like w3m (w3m-img) could show images, but is a project whit not update from a long time. Regards.

I would like to share HOWTO in Ghost in the Shell series about efficient working in the UNIX shell environment. Ghost in the Shell - Part 2 https://vermaden.wordpress.com/2018/07/08/ghost-in-the-shell-part-2/

I'd like to define some local variables in a cron entry so that I can create the following file /usr/local/etc/cron.d/rsync with the following contents: PATH=/etc:/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin excludes="--exclude=/storage --exclude=/proc"...

I've got a Digital Ocean droplet running FreeBSD which I shell into. I can locate tcsh under /bin/tcsh but using setenv in my local .cshrc file doesn't cause this shell to be used on next login. Env reports the shell as sh and the prompt hasn't changed to > Editing master.passwd to use tcsh...

I like the way how tcsh works, but it is outdated a little bit (only 1 update since 2012), also some nice features are available in zsh, like suggesting flags and other completions for cli and not only cli apps… But some of its features are distracting and annoying IMHO. I didn't find any...

Hello, I have that sh script: #!/bin/sh DATE=`date +%Y-%m-%d:%H:%M:%S` NAME="game" if ps ax | grep -v grep | grep $NAME > /dev/null then echo "$NAME service running, everything is fine" else echo "$DATE: Restarting $NAME" >> /root/log cd /usr/home/game/db && ./game fi and it works...

This is probably a noob question, but I have wondered for some time the difference between TTY and terminal like rxvt-unicode or Xterm (and less shell). Is TTY just a virtual device which runs terminal emulator like rxvt-unicode which runs shell like sh or bash? If I have a freshly installed...

Hello, we are using net/ssh in Ruby to execute scripts on a FreeBSD machine, in order to do some checks for Nagios. Actually it is a brand new Pfsense applicance. The code is roughly the following: Net::SSH.start(@host, @user, {:password=>@pass}) do |ssh| erg=ssh.exec! "ls -al" p erg end...