Install Ruby on Debian

Linux Systems Guides
  • Install Ruby on Debian

    Install rbenv

    sudo apt install rbenv
    

    Then initialize the environment:

    rbenv init
    

    rbenv-init.png

    nano ~/.bashrc
    

    Type or paste the output above, Ctrl +x to save

    Apply:

    source .bashrc
    

    Install ruby-build

    Install git:

    sudo apt install git
    

    install-git.png

    mkdir -p "$(rbenv root)"/plugins
    

    Clone to local:

    git clone https://github.com/rbenv/ruby-build.git "$(rbenv root)"/plugins/ruby-build
    

    clone-ruby.png

    curl -fsSL https://github.com/rbenv/rbenv-installer/raw/main/bin/rbenv-doctor | bash
    

    ruby-doctor.png

    Now install Ruby:

    print ruby versions available

    rbenv install --list
    

    rb-list.png

    Install the latest version unless you have a reason otherwise:

    rbenv install 3.3.0
    

    On this system there was an error compiling at this point with fiddle, as well as psych: ruby-failed.png

    Therefore manually installing the following filled dependencies

    sudo apt install libtool
    sudo apt install libffi-dev
    

    rb-compile.png

    rbenv global 3.3.0
    

    print installed ruby version

    ruby -v
    

    ruby-version-installed.png

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      Again running smartctl after all is said and done:

      smartctl --all /dev/sda

      ddrescue-smartctl-after-rescue.png ddrescue-smartctl-2.png

      Yet an old drive in itself, I run the wheels off of them, and monitor regularly as anyone should.

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      New script due to dependency changes:

      #! /bin/sh set -e

      if [ “$1” = “install” ] || [ “$1” = “upgrade” ]; then

      ACTION=$1

      elif [ “$1” = “” ]; then ACTION=install else echo “usage: $(basename $0) action [source]” echo “action is either install (default) or upgrade” echo “source is either tar (default) or git” exit 1 fi

      if [ “$2” = “git” ] || [ “$2” = “tar” ]; then SOURCE=$2 elif [ “$2” = “” ]; then SOURCE=tar else echo “Unknown source $2!” exit 1 fi

      if [ “$BPC_UID” ] && [ $(getent passwd “$BPC_UID” | cut -d ‘:’ -f 1) != “backuppc” ]; then echo “The uid = $BPC_UID is already in use!” exit 1 fi

      #Install dependencies

      apt-get -q update export DEBIAN_FRONTEND=noninteractive apt-get install -q -y apache2 apache2-utils libapache2-mod-perl2 par2 perl smbclient rsync tar gcc zlib1g zlib1g-dev rrdtool git make perl-doc libarchive-zip-perl libfile-listing-perl libxml-rss-perl libcgi-session-perl libacl1-dev wget iputils-ping pwgen

      #Set up backuppc user and directory

      if ! id backuppc >/dev/null 2>&1; then if [ “$BPC_UID” ]; then adduser --system --home /var/lib/backuppc --group --disabled-password --shell /bin/false --uid=“$BPC_UID” backuppc else adduser --system --home /var/lib/backuppc --group --disabled-password --shell /bin/false backuppc fi fi mkdir -p /var/lib/backuppc/.ssh chmod 700 /var/lib/backuppc/.ssh echo -e “BatchMode yes\nStrictHostKeyChecking no” > /var/lib/backuppc/.ssh/config if [ ! -e /var/lib/backuppc/.ssh/id_rsa ]; then ssh-keygen -q -t rsa -b 4096 -N ‘’ -C “BackupPC key” -f /var/lib/backuppc/.ssh/id_rsa fi chmod 600 /var/lib/backuppc/.ssh/id_rsa chmod 644 /var/lib/backuppc/.ssh/id_rsa.pub chown -R backuppc:backuppc /var/lib/backuppc/.ssh

      #Set password or read password file

      if [ “$BPC_PASS” ]; then PASSWORD=“$BPC_PASS” elif [ -e /root/password ]; then PASSWORD=$(cat /root/password) chmod 600 /root/password else PASSWORD=$(pwgen -s -1 32) echo “$PASSWORD” > /root/password chmod 600 /root/password fi echo “backuppc:$PASSWORD” | chpasswd backuppc

      #Get BackupPC release versions

      get_latest_release() { wget -q -O - “https://api.github.com/repos/$1/releases/latest” | grep ‘“tag_name”:’ | sed -E ‘s/.“([^”]+)"./\1/’
      } bpcver=$(get_latest_release “backuppc/backuppc”) bpcxsver=$(get_latest_release “backuppc/backuppc-xs”) rsyncbpcver=$(get_latest_release “backuppc/rsync-bpc”)

      mkdir -p /tmp/bpc cd /tmp/bpc

      if [ $SOURCE = “tar” ]; then

      ##Fetch and install latest stable releases

      wget https://github.com/backuppc/backuppc-xs/releases/download/$bpcxsver/BackupPC-XS-$bpcxsver.tar.gz wget https://github.com/backuppc/rsync-bpc/releases/download/$rsyncbpcver/rsync-bpc-$rsyncbpcver.tar.gz wget https://github.com/backuppc/backuppc/releases/download/$bpcver/BackupPC-$bpcver.tar.gz tar -zxf BackupPC-XS-$bpcxsver.tar.gz tar -zxf rsync-bpc-$rsyncbpcver.tar.gz tar -zxf BackupPC-$bpcver.tar.gz cd BackupPC-XS-$bpcxsver perl Makefile.PL make make test make install cd …/rsync-bpc-$rsyncbpcver ./configure make make install cd …/BackupPC-$bpcver fi

      if [ $SOURCE = “git” ]; then

      #Fetch and install the latest development code instead

      git clone https://github.com/backuppc/backuppc.git git clone https://github.com/backuppc/backuppc-xs.git git clone https://github.com/backuppc/rsync-bpc.git cd backuppc-xs perl Makefile.PL make make test make install cd …/rsync-bpc ./configure make make install cd …/backuppc ./makeDist --nosyntaxCheck --releasedate “date -u "+%d %b %Y"” --version ${bpcver}git tar -zxf dist/BackupPC-${bpcver}git.tar.gz cd BackupPC-${bpcver}git fi

      if [ $ACTION = “install” ]; then ./configure.pl --batch --cgi-dir /var/www/cgi-bin/BackupPC --data-dir /var/lib/backuppc --hostname backuppc --html-dir /var/www/html/BackupPC --html-dir-url /BackupPC --install-dir /usr/local/BackupPC fi

      if [ $ACTION = “upgrade” ]; then ./configure.pl --batch --config-path /etc/BackupPC/config.pl fi

      #Set up web server #Note that changing the apache user and group (/etc/apache2/envvars) could cause other services #provided by apache to fail. There are alternatives if you don’t want to change the apache #user: use SCGI or a setuid BackupPC_Admin script - see the docs. cp httpd/BackupPC.conf /etc/apache2/conf-available/backuppc.conf sed -i “/Require local/d” /etc/apache2/conf-available/backuppc.conf sed -i “s/export APACHE_RUN_USER=www-data/export APACHE_RUN_USER=backuppc/” /etc/apache2/envvars sed -i “s/export APACHE_RUN_GROUP=www-data/export APACHE_RUN_GROUP=backuppc/” /etc/apache2/envvars echo ‘’ > /var/www/html/index.html a2enconf backuppc a2enmod cgid service apache2 restart

      #Set up backuppc service

      cp systemd/init.d/debian-backuppc /etc/init.d/backuppc

      chmod 755 /etc/init.d/backuppc

      update-rc.d backuppc defaults

      chmod u-s /var/www/cgi-bin/BackupPC/BackupPC_Admin

      touch /etc/BackupPC/BackupPC.users

      sed -i “s/$Conf{CgiAdminUserGroup}.*/$Conf{CgiAdminUserGroup} = ‘backuppc’;/” /etc/BackupPC/config.pl

      sed -i “s/$Conf{CgiAdminUsers}.*/$Conf{CgiAdminUsers} = ‘backuppc’;/” /etc/BackupPC/config.pl

      chown -R backuppc:backuppc /etc/BackupPC

      echo $PASSWORD | htpasswd -i /etc/BackupPC/BackupPC.users backuppc

      service backuppc start

      #Clean up

      cd rm -rf /tmp/bpc echo “All done!” exit 0

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      To list all files in current directory including dot files (hidden files or directories), as well as print permissions :

      ls -la

FreeBSD Notes
  • rickR

    Remove old kernel images that are cluttering the system

    zstd-no-space-error.png

    Most of these errors are due to low or not enough space left in the root partition.

    If you are using a Debian flavor:

    sudo apt-get autoremove --purge

    zstd-error.png

    Inform grub whenever an old kernel is removed:

    update grub

    update-grub.png

    Remove the un-used kernel config files:

    These will be the files pre cursed as ‘rc’ where installed kernels use ‘ii’

    … As well as files no longer used or required due to dependencies

    This command will detect, print, and remove left over cruft from previously installed packages or scripts, that have been removed or updated.

    sudo dpkg --purge $(dpkg -l | awk '/^rc/{print $2}')

    purge.png

    You can re-run the following to view the installed kernel(s):

    dpkg --list | grep linux-image

    installed-kernels.png

    read more

  • rickR

    To list all files in current directory including dot files (hidden files or directories), as well as print permissions :

    ls -la
    read more

  • rickR
    Install Ruby on Debian

    Install rbenv

    sudo apt install rbenv

    Then initialize the environment:

    rbenv init

    rbenv-init.png

    nano ~/.bashrc

    Type or paste the output above, Ctrl +x to save

    Apply:

    source .bashrc

    Install ruby-build

    Install git:

    sudo apt install git

    install-git.png

    mkdir -p "$(rbenv root)"/plugins

    Clone to local:

    git clone https://github.com/rbenv/ruby-build.git "$(rbenv root)"/plugins/ruby-build

    clone-ruby.png

    curl -fsSL https://github.com/rbenv/rbenv-installer/raw/main/bin/rbenv-doctor | bash

    ruby-doctor.png

    Now install Ruby:

    print ruby versions available

    rbenv install --list

    rb-list.png

    Install the latest version unless you have a reason otherwise:

    rbenv install 3.3.0

    On this system there was an error compiling at this point with fiddle, as well as psych: ruby-failed.png

    Therefore manually installing the following filled dependencies

    sudo apt install libtool sudo apt install libffi-dev

    rb-compile.png

    rbenv global 3.3.0

    print installed ruby version

    ruby -v

    ruby-version-installed.png

    read more

  • rickR

    Re: Set script to executable

    755 - Owner has all permissions, and Group and Other can read and execute 700 - Owner has all permissions 644 - Owner can read and write, and Group and Other can read 600 - Owner can read and write 775 - Owner can read and write, and Group and Other can read 770 - Owner and Group have all, and Other can read and execute 750 - Owner has all permissions, and Group can read and execute 664 - Owner and Group can read and write, and Other can just read 660 - Owner and Group can read and write 640 - Owner can read and write, and Group can read
    read more

  • rickR

    Re: Find or Locate a file or extension command line

    Install locate command linux: Use your sudo command!

    apt install mlocate

    OR:

    apt-get install mlocate

    OR:

    yum install mlocate

    Update the database:

    updatedb

    Depending on the size of the complete filesystem this could take a few minutes

    After the database has been populated:

    locate mariadb

    Where mariadb is the word your looking for

    read more