bash linux

    # General Aliases
    alias apk='apk --progress'
    alias ll="ls -ltan"

    alias hosts='cat /etc/hosts'
    alias ..="cd .."
    alias ...="cd ../.."
    alias ....="cd ../../.."
    alias untar="tar xzvkf"
    alias mv="mv -nv"
    alias cp="cp -i"
    alias ip4="ip -4 addr"
    alias ip6="ip -6 addr"

    COL_YEL="\[\e[1;33m\]"
    COL_GRA="\[\e[0;37m\]"
    COL_WHI="\[\e[1;37m\]"
    COL_GRE="\[\e[1;32m\]"
    COL_RED="\[\e[1;31m\]"

    # Bash Prompt
    if test "$UID" -eq 0 ; then
        _COL_USER=$COL_RED
        _p=" #"
    else
        _COL_USER=$COL_GRE
        _p=">"
    fi
    COLORIZED_PROMPT="${_COL_USER}\u${COL_WHI}@${COL_YEL}\h${COL_WHI}:\w${_p} \[\e[m\]"
    case $TERM in
        *term | rxvt | screen )
            PS1="${COLORIZED_PROMPT}\[\e]0;\u@\h:\w\007\]" ;;
        linux )
            PS1="${COLORIZED_PROMPT}" ;;
        * ) 
            PS1="\u@\h:\w${_p} " ;;
    esac

alpine docker Bad file descriptor

https://stackoverflow.com/questions/48736212/bad-file-descriptor-error-during-apk-update-in-docker-container-why

When you login docker container, use apk update get this error message Bad file descriptor...

Try to run follow command

rm -rf /var/cache/apk && \
mkdir /var/cache/apk && \
apk update