쉘프로그래밍강좌009: 리눅스 서버로 로그인하는 모든 사용자들의 기본 사용환경 설정을 위한 /etc/profile의 역할과 용도

[root@RockyLinux01 ~]# cat /etc/profile

# /etc/profile

# System wide environment and startup programs, for login setup

# Functions and aliases go in /etc/bashrc

# 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.

pathmunge () {

    case ":${PATH}:" in

        *:"$1":*)

            ;;

        *)

            if [ "$2" = "after" ] ; then

                PATH=$PATH:$1

            else

                PATH=$1:$PATH

            fi

    esac

}

if [ -x /usr/bin/id ]; then

    if [ -z "$EUID" ]; then

        # ksh workaround

        EUID=`/usr/bin/id -u`

        UID=`/usr/bin/id -ru`

    fi

    USER="`/usr/bin/id -un`"

    LOGNAME=$USER

    MAIL="/var/spool/mail/$USER"

fi

# Path manipulation

if [ "$EUID" = "0" ]; then

    pathmunge /usr/sbin

    pathmunge /usr/local/sbin

else

    pathmunge /usr/local/sbin after

    pathmunge /usr/sbin after

fi

HOSTNAME=$(/usr/bin/hostnamectl --transient 2>/dev/null) || \

HOSTNAME=$(/usr/bin/hostname 2>/dev/null) || \

HOSTNAME=$(/usr/bin/uname -n)

HISTSIZE=1000

if [ "$HISTCONTROL" = "ignorespace" ] ; then

    export HISTCONTROL=ignoreboth

else

    export HISTCONTROL=ignoredups

fi

export PATH USER LOGNAME MAIL HOSTNAME HISTSIZE HISTCONTROL

for i in /etc/profile.d/*.sh /etc/profile.d/sh.local ; do

    if [ -r "$i" ]; then

        if [ "${-#*i}" != "$-" ]; then

            . "$i"

        else

            . "$i" >/dev/null

        fi

    fi

done

unset i

unset -f pathmunge

if [ -n "${BASH_VERSION-}" ] ; then

        if [ -f /etc/bashrc ] ; then

                # Bash login shells run only /etc/profile

                # Bash non-login shells run only /etc/bashrc

                # Check for double sourcing is done in /etc/bashrc.

                . /etc/bashrc

       fi

fi

[root@RockyLinux01 ~]#