os: fedora39 -- 配置和脚本

os:  fedora39  --  配置和脚本

 

 

 

 

一、全局配置信息（/etc/basrc） 

 

　　1、PS1配置（/etc/bashrc）

PS1="[${PROMPT_BRACKETS:+[}\[\e[${PROMPT_COLOR:-32}m\]\u@\h\[\e[0m\]:\[\e[${PROMPT_DIR_COLOR:-${PROMPT_COLOR:-32}}m\]\W${PROMPT_ERROR:+\[\e[0;31m\]${?#0}}\[\e[0m\]${PROMPT_BRACKETS:+]}]\$ "

 

 

　　2、ALL（/etc/bashrc）

 

[laohu@fedora:null]$ cat  /etc/bashrc 
# /etc/bashrc

# System wide functions and aliases
# Environment stuff goes in /etc/profile

# It's NOT a good idea to change this file unless you know what you
# are doing. It's much better to create a custom.sh shell script in
# /etc/profile.d/ to make custom changes to your environment, as this
# will prevent the need for merging in future updates.

# Prevent doublesourcing
if [ -z "$BASHRCSOURCED" ]; then
  BASHRCSOURCED="Y"

  # are we an interactive shell?
  if [ "$PS1" ]; then
    if [ -z "$PROMPT_COMMAND" ]; then
      case $TERM in
      xterm*)
        if [ -e /etc/sysconfig/bash-prompt-xterm ]; then
            PROMPT_COMMAND=/etc/sysconfig/bash-prompt-xterm
        else
            PROMPT_COMMAND='printf "\033]0;%s@%s:%s\007" "${USER}" "${HOSTNAME%%.*}" "${PWD/#$HOME/\~}"'
        fi
        ;;
      screen*)
        if [ -e /etc/sysconfig/bash-prompt-screen ]; then
            PROMPT_COMMAND=/etc/sysconfig/bash-prompt-screen
        else
            PROMPT_COMMAND='printf "\033k%s@%s:%s\033\\" "${USER}" "${HOSTNAME%%.*}" "${PWD/#$HOME/\~}"'
        fi
        ;;
      *)
        [ -e /etc/sysconfig/bash-prompt-default ] && PROMPT_COMMAND=/etc/sysconfig/bash-prompt-default
        ;;
      esac
    fi
    # Turn on parallel history
    shopt -s histappend
    # Turn on checkwinsize
    shopt -s checkwinsize
 #   [ "$PS1" = "\\s-\\v\\\$ " ] && PS1="[\u@\h \W]\\$ "
#    [ "$PS1" = "\\s-\\v\\\$ " ] && PS1="[\u@\h \W]\\$ "
    [ "$PS1" = "\\s-\\v\\\$ " ] && PS1="[\u@\h \W]\\$ "
    # You might want to have e.g. tty in prompt (e.g. more virtual machines)
    # and console windows
    # If you want to do so, just add e.g.
    # if [ "$PS1" ]; then
    #   PS1="[\u@\h:\l \W]\\$ "
    # fi
    # to your custom modification shell script in /etc/profile.d/ directory
  fi

  if ! shopt -q login_shell ; then # We're not a login shell
    # Need to redefine pathmunge, it gets undefined at the end of /etc/profile
    pathmunge () {
        case ":${PATH}:" in
            *:"$1":*)
                ;;
            *)
                if [ "$2" = "after" ] ; then
                    PATH=$PATH:$1
                else
                    PATH=$1:$PATH
                fi
        esac
    }

    # Set default umask for non-login shell only if it is set to 0
    [ `umask` -eq 0 ] && umask 022

    SHELL=/bin/bash
    # Only display echos from profile.d scripts if we are no login shell
    # and interactive - otherwise just process them to set envvars
    for i in /etc/profile.d/*.sh; do
        if [ -r "$i" ]; then
            if [ "$PS1" ]; then
                . "$i"
            else
                . "$i" >/dev/null
            fi
        fi
    done

    unset i
    unset -f pathmunge
  fi

fi
# vim:ts=4:sw=4






# 2023-11-21 by david
#


#  PS1: /etc/profile.d/bash-color-prompt.sh
PS1="[${PROMPT_BRACKETS:+[}\[\e[${PROMPT_COLOR:-32}m\]\u@\h\[\e[0m\]:\[\e[${PROMPT_DIR_COLOR:-${PROMPT_COLOR:-32}}m\]\W${PROMPT_ERROR:+\[\e[0;31m\]${?#0}}\[\e[0m\]${PROMPT_BRACKETS:+]}]\$ "


[laohu@fedora:null]$ 
[laohu@fedora:null]$ 

 

 

 

 

二、fedora39 - 个人配置信息（~/.bashrc）

[laohu@fedora:null]$ cat  ~/.bashrc 
# .bashrc

# Source global definitions
if [ -f /etc/bashrc ]; then
    . /etc/bashrc
fi

# User specific environment
if ! [[ "$PATH" =~ "$HOME/.local/bin:$HOME/bin:" ]]; then
    PATH="$HOME/.local/bin:$HOME/bin:$PATH"
fi
export PATH

# Uncomment the following line if you don't like systemctl's auto-paging feature:
# export SYSTEMD_PAGER=

# User specific aliases and functions
if [ -d ~/.bashrc.d ]; then
    for rc in ~/.bashrc.d/*; do
        if [ -f "$rc" ]; then
            . "$rc"
        fi
    done
fi
unset rc




# 2023-11-13 by david
#


# alias
alias reboot='echo ROOT_MIMA |sudo -S reboot'
alias off='echo ROOT_MIMA |sudo -S shutdown -h now'
alias gpp='g++ -g -Wall -o'


#path
TOOLS='/home/laohu/fedora39/tools'
export PATH=${PATH}:${TOOLS}


#work directory
WORK_DIR='/home/laohu/fedora39/lidawei/tmp/null'
cd ${WORK_DIR}


[laohu@fedora:null]$ 
[laohu@fedora:null]$ 

 

 

 

 

三、基本脚本

 

　　1、fedora39  --  系统更新（up 1 [laohu@fedora ~/user/tools]$ cat update

#!/usr/bin/env bash


#    os_version = fedora39
#    filename = update


echo
echo -- update --
 echo PASSWD | sudo -S date "+%F %T";
 echo PASSWD | sudo -S dnf clean all -y;
 echo PASSWD | sudo -S dnf makecache -y;
 echo PASSWD | sudo -S dnf upgrade -y;
 echo PASSWD | sudo -S dnf update -y;
 echo PASSWD | sudo -S dnf upgrade -y;
 echo PASSWD | sudo -S dnf autoremove -y;
echo -- update end --
echo


[laohu@fedora ~/user/tools]$ 
[laohu@fedora ~/user/tools]$ 

 

　　2、fedora39  --  移除旧内核（remove-old-kernel）

[laohu@fedora:null]$ cat  ~/fedora39/tools/remove_old_kernel 
#!/usr/bin/env bash




# os_version = fedora39
# file_name = remove old kernel




# show all kernel files installed

function list()
{


        kf=$(rpm -qa | grep -E "^kernel*")


        ic=1

        echo
        echo '-- List All Kernel Files: start --'
        for kf in ${kf}
        do
                echo '    SHOW_KERNEL_FILE_'${ic} :     ${kf}
                ic=$((${ic}+1))
        done
        echo '-- List All Kernel Files: end --'
        echo


}




# delete old kernel, $1 is set to delete version
# eg: set $1
#       $1 = 6.0.14-300.fc37.x86_64

function delete_old_kernel()
{

        echo
        echo '-- remove old kernel files: starting --'
        echo '  OS->: Delete_Old_Kernel_Version :='     $1
        if [ $1 ]
        then
                kd=$(rpm -qa | grep -E "^kernel*" | grep -E "^kernel.*$1.*")
        else
                echo '  OS->: $1 is NULL, the program is end !'
                exit 3
        fi


        di=1

        for df in ${kd}
        do
                echo '    REMOVE_KERNEL_FILE_'${di} :   ${df}
                echo ROOT_MIMA | sudo -S dnf -y remove ${df}
                di=$((${di}+1))
        done
        echo '-- remove old kernel files: over  --'
        echo
}




function remove_old_kernel_help()
{
        echo
        echo
        echo '  == remove-old-kernel help: start =='
        echo '  command                 parameter1              function'
        echo '  remove_old_kernel       null                    -- List all kernel files installed.'
        echo '  remove_old_kernel       kernel-old-version      -- Remove the kernel files matched with "kernel-old-version" .'
        echo
        echo '  == examples =='
        echo '  remove_old_kernel                               List all kernel files installed. '
        echo '  remove_old_kernel       6.0.14-300.fc37.x86_64  remove kernel files matched with "6.0.14-300.fc37.x86_64" .'
        echo '  == remove-old-kernel help: end =='
        echo
        echo
}




function run()
{

        remove_old_kernel_help

        if [ -z $1 ]
        then
        #       echo '**TEST:           $1 is empty.'
                list
        else
        #       echo '**TEST:           $1 is not empty.'
                list
                delete_old_kernel $1
                list
        fi
}




run $1

[laohu@fedora:null]$ 
[laohu@fedora:null]$ 

 

 

 

四、参考文档

 

　　1、os:  fedora38 系统更新脚本 - update - (echo 'PASSWORD' | sudo -S <command>)　　https://www.cnblogs.com/lnlidawei/p/17623474.html

 

　　2、os：linux移除旧内核的脚本（rockylinux9）　　https://www.cnblogs.com/lnlidawei/p/17007191.html