greb 이용해서 CentOS 설정
[root@DESKTOP-9IVP0T4 etc]# cat /etc/default/grub
GRUB_TIMEOUT=1
GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"
GRUB_DEFAULT=saved
GRUB_DISABLE_SUBMENU=true
GRUB_TERMINAL="serial console"
GRUB_SERIAL_COMMAND="serial --speed=115200"
GRUB_CMDLINE_LINUX="console=tty0 crashkernel=auto console=ttyS0,115200"
GRUB_DISABLE_RECOVERY="true"
password 잃어버렸을 경우
- 리눅스를 응급부트모드로 변경해야 한다.
사용자명 확인 ( whoami )
[root@DESKTOP-9IVP0T4 etc]# whoami
root
비밀번호 변경 ( passwd )
- 누구나 응급 복구 모드에 접근할 수 없도록 GREB 에 패스워드 설정.
[root@DESKTOP-9IVP0T4 etc]# passwd
Changing password for user root.
New password:
BAD PASSWORD: The password is shorter than 8 characters
Retype new password:
passwd: all authentication tokens updated successfully.
reboot
- 재부팅
cd /bin
- 바이너리의 약자로 실행 파일들이 있다.
cd /boot
- 시스템 부팅시 필요한 파일들이 들어있는 디렉터리
[root@DESKTOP-9IVP0T4 /]# cd /boot
[root@DESKTOP-9IVP0T4 boot]# ls
config-3.10.0-957.12.2.el7.x86_64 initramfs-3.10.0-957.12.2.el7.x86_64.img
efi symvers-3.10.0-957.12.2.el7.x86_64.gz
grub System.map-3.10.0-957.12.2.el7.x86_64
grub2 vmlinuz-0-rescue-93f219319dd5bdb42d9f1c8f2e23d329
initramfs-0-rescue-93f219319dd5bdb42d9f1c8f2e23d329.img vmlinuz-3.10.0-957.12.2.el7.x86_64
cd /dev
- 물리적인 장치를 파일화하여 기록하여 관리하는 디렉토리
[root@DESKTOP-9IVP0T4 /]# cd /dev
[root@DESKTOP-9IVP0T4 dev]# ls
autofs loop0 net ram13 random tty0 tty19 tty29 tty39 tty49 tty59 ttyS2 vsock
block loop1 null ram14 rtc0 tty1 tty2 tty3 tty4 tty5 tty6 ttyS3 zero
bsg loop2 nvram ram15 sda tty10 tty20 tty30 tty40 tty50 tty60 urandom
btrfs-control loop3 ppp ram2 sdb tty11 tty21 tty31 tty41 tty51 tty61 vcs
console loop4 ptmx ram3 sg0 tty12 tty22 tty32 tty42 tty52 tty62 vcs1
cpu_dma_latency loop5 pts ram4 sg1 tty13 tty23 tty33 tty43 tty53 tty63 vcsa
cuse loop6 ram0 ram5 shm tty14 tty24 tty34 tty44 tty54 tty7 vcsa1
fd loop7 ram1 ram6 stderr tty15 tty25 tty35 tty45 tty55 tty8 vcsu
full loop-control ram10 ram7 stdin tty16 tty26 tty36 tty46 tty56 tty9 vcsu1
fuse mapper ram11 ram8 stdout tty17 tty27 tty37 tty47 tty57 ttyS0 vfio
kmsg mem ram12 ram9 tty tty18 tty28 tty38 tty48 tty58 ttyS1 vhost-net
cd /home
- 개인 사용자들이나 파일들이 디렉터리를 만들어서 관리 가능
[root@DESKTOP-9IVP0T4 /]# cd /home
[root@DESKTOP-9IVP0T4 home]# ls
[root@DESKTOP-9IVP0T4 home]#
cd /lib
- 각종 라이브러리 저장 디렉터리
[root@DESKTOP-9IVP0T4 /]# cd /lib
[root@DESKTOP-9IVP0T4 lib]# ls
binfmt.d firmware kbd locale modules-load.d rpm sse2 tmpfiles.d wsl
debug games kdump modprobe.d polkit-1 sendmail sysctl.d tuned yum-plugins
dracut grub kernel modules python2.7 sendmail.postfix systemd udev
cd /lib64
- 64비트용 리눅스를 설치하는 경우에 생성되는 디렉터리
[root@DESKTOP-9IVP0T4 /]# cd /lib64
[root@DESKTOP-9IVP0T4 lib64]#
[root@DESKTOP-9IVP0T4 lib64]# ls
audit libgpgme-pthread.so.11 libpcre16.so.0.2.0
cracklib_dict.hwm libgpgme-pthread.so.11.8.1 libpcre32.so.0
cracklib_dict.pwd libgpgme.so.11 libpcre32.so.0.0.0
cracklib_dict.pwi libgpgme.so.11.8.1 libpcrecpp.so.0
dbus-1 libgssapi_krb5.so.2 libpcrecpp.so.0.0.0
elfutils libgssapi_krb5.so.2.2 libpcreposix.so.0
fipscheck libgssrpc.so.4 libpcreposix.so.0.0.1
games libgssrpc.so.4.2 libpcre.so.1
gconv libgthread-2.0.so.0 libpcre.so.1.2.0
gettext libgthread-2.0.so.0.5600.1 libpipeline.so.1
gio libhandle.so.1 libpipeline.so.1.2.3
girepository-1.0 libhandle.so.1.0.3 libplc4.so
gssproxy libhistory.so.6 libplds4.so
krb5 libhistory.so.6.2 libpng15.so.15
ld-2.17.so libidn.so.11 libpng15.so.15.13.0
ld-linux-x86-64.so.2 libidn.so.11.6.11 libpoldiff.so.1
libacl.so.1 libini_config.so.3 libpoldiff.so.1.3.3
libacl.so.1.1.0 libini_config.so.3.2.1 libpolkit-agent-1.so.0
libanl-2.17.so libip4tc.so.0 libpolkit-agent-1.so.0.0.0
libanl.so.1 libip4tc.so.0.1.0 libpolkit-gobject-1.so.0
libapol.so.4 libip6tc.so.0 libpolkit-gobject-1.so.0.0.0
libapol.so.4.4 libip6tc.so.0.1.0 libpopt.so.0
libasm-0.172.so libiptc.so.0 libpopt.so.0.0.0
libasm.so.1 libiptc.so.0.0.0 libprocps.so.4
libasprintf.so.0 libirs-export.so.90 libprocps.so.4.0.0
libasprintf.so.0.0.0 libirs-export.so.90.0.1 libpthread-2.17.so
libassuan.so.0 libisccfg-export.so.90 libpthread.so.0
libassuan.so.0.4.0 libisccfg-export.so.90.0.7 libpth.so.20
libattr.so.1 libisc-export.so.95 libpth.so.20.0.27
libattr.so.1.1.0 libisc-export.so.95.2.1 libpwquality.so.1
libaudit.so.1 libjansson.so.4 libpwquality.so.1.0.2
libaudit.so.1.0.0 libjansson.so.4.10.0 libpython2.7.so.1.0
libauparse.so.0 libjson-c.so.2 libqpol.so.1
libauparse.so.0.0.0 libjson-c.so.2.0.1 libqpol.so.1.7
libbasicobjects.so.0 libjson.so.0 libqrencode.so.3
libbasicobjects.so.0.1.0 libjson.so.0.1.0 libqrencode.so.3.4.1
libbfd-2.27-34.base.el7.so libk5crypto.so.3 libreadline.so.6
libblkid.so.1 libk5crypto.so.3.1 libreadline.so.6.2
libblkid.so.1.1.0 libkdb5.so.8 libref_array.so.1
libBrokenLocale-2.17.so libkdb5.so.8.0 libref_array.so.1.2.1
libBrokenLocale.so.1 libkeyutils.so.1 libresolv-2.17.so
libbtrfs.so.0 libkeyutils.so.1.5 libresolv.so.2
libbtrfs.so.0.1 libkmod.so.2 librpmbuild.so.3
libbz2.so.1 libkmod.so.2.2.10 librpmbuild.so.3.2.2
libbz2.so.1.0.6 libkrad.so.0 librpmio.so.3
libc-2.17.so libkrad.so.0.0 librpmio.so.3.2.2
libcap-ng.so.0 libkrb5.so.3 librpmsign.so.1
libcap-ng.so.0.0.0 libkrb5.so.3.3 librpmsign.so.1.2.2
libcap.so.2 libkrb5support.so.0 librpm.so.3
libcap.so.2.22 libkrb5support.so.0.1 librpm.so.3.2.2
libcgroup.so.1 liblber-2.4.so.2 librt-2.17.so
libcgroup.so.1.0.41 liblber-2.4.so.2.10.7 librt.so.1
libcidn-2.17.so libldap-2.4.so.2 libsasl2.so.3
libcidn.so.1 libldap-2.4.so.2.10.7 libsasl2.so.3.0.0
libcollection.so.2 libldap_r-2.4.so.2 libseaudit.so.4
libcollection.so.2.1.1 libldap_r-2.4.so.2.10.7 libseaudit.so.4.5
libcom_err.so.2 liblua-5.1.so libseccomp.so.2
libcom_err.so.2.1 liblz4.so.1 libseccomp.so.2.3.1
libcpupower.so.0 liblz4.so.1.7.5 libsefs.so.4
libcpupower.so.0.0.0 liblzma.so.5 libsefs.so.4.0.4
libcrack.so.2 liblzma.so.5.2.2 libSegFault.so
libcrack.so.2.9.0 liblzo2.so.2 libselinux.so.1
libcroco-0.6.so.3 liblzo2.so.2.0.0 libsemanage.so.1
libcroco-0.6.so.3.0.1 libm-2.17.so libsepol.so.1
libcrypt-2.17.so libmagic.so.1 libsgutils2.so.2
libcrypto.so.10 libmagic.so.1.0.0 libsgutils2.so.2.0.0
libcrypto.so.1.0.2k libmemusage.so libslang.so.2
libcryptsetup.so.12 libmenu.so.5 libslang.so.2.2.4
libcryptsetup.so.12.3.0 libmenu.so.5.9 libslapi-2.4.so.2
libcryptsetup.so.4 libmenuw.so.5 libslapi-2.4.so.2.10.7
libcryptsetup.so.4.7.0 libmenuw.so.5.9 libsmartcols.so.1
libcrypt.so.1 libmnl.so.0 libsmartcols.so.1.1.0
libc.so.6 libmnl.so.0.1.0 libsmime3.so
libcurl.so.4 libmount.so.1 libsnappy.so.1
libcurl.so.4.3.0 libmount.so.1.1.0 libsnappy.so.1.1.4
libdaemon.so.0 libmozjs-17.0.so libsoftokn3.chk
libdaemon.so.0.5.0 libm.so.6 libsoftokn3.so
libdb-5.3.so libncurses.so.5 libsqlite3.so.0
libdb-5.so libncurses++.so.5 libsqlite3.so.0.8.6
libdbus-1.so.3 libncurses.so.5.9 libssh2.so.1
libdbus-1.so.3.14.14 libncurses++.so.5.9 libssh2.so.1.0.1
libdbus-glib-1.so.2 libncurses++w.so.5 libssl3.so
libdbus-glib-1.so.2.2.2 libncursesw.so.5 libssl.so.10
libdevmapper.so.1.02 libncurses++w.so.5.9 libssl.so.1.0.2k
libdhcpctl.so.0 libncursesw.so.5.9 libss.so.2
libdhcpctl.so.0.0.0 libndp.so.0 libss.so.2.0
libdl-2.17.so libndp.so.0.0.0 libstdc++.so.6
libdl.so.2 libnetfilter_conntrack.so.3 libstdc++.so.6.0.19
libdns-export.so.100 libnetfilter_conntrack.so.3.6.0 libsysfs.so.2
libdns-export.so.100.1.1 libnewt.so.0.52 libsysfs.so.2.0.1
libdw-0.172.so libnewt.so.0.52.15 libsystemd-daemon.so.0
libdw.so.1 libnfnetlink.so.0 libsystemd-daemon.so.0.0.12
libe2p.so.2 libnfnetlink.so.0.2.0 libsystemd-id128.so.0
libe2p.so.2.3 libnfsidmap libsystemd-id128.so.0.0.28
libedit.so.0 libnfsidmap.so.0 libsystemd-journal.so.0
libedit.so.0.0.42 libnfsidmap.so.0.3.0 libsystemd-journal.so.0.11.5
libelf-0.172.so libnl libsystemd-login.so.0
libelf.so.1 libnl-3.so.200 libsystemd-login.so.0.9.3
libestr.so.0 libnl-3.so.200.23.0 libsystemd.so.0
libestr.so.0.0.0 libnl-cli-3.so.200 libsystemd.so.0.6.0
libevent-2.0.so.5 libnl-cli-3.so.200.23.0 libtasn1.so.6
libevent-2.0.so.5.1.9 libnl-genl-3.so.200 libtasn1.so.6.5.3
libevent_core-2.0.so.5 libnl-genl-3.so.200.23.0 libteamdctl.so.0
libevent_core-2.0.so.5.1.9 libnl-idiag-3.so.200 libteamdctl.so.0.1.5
libevent_extra-2.0.so.5 libnl-idiag-3.so.200.23.0 libteam.so.5
libevent_extra-2.0.so.5.1.9 libnl-nf-3.so.200 libteam.so.5.4.0
libevent_openssl-2.0.so.5 libnl-nf-3.so.200.23.0 libthread_db-1.0.so
libevent_openssl-2.0.so.5.1.9 libnl-route-3.so.200 libthread_db.so.1
libevent_pthreads-2.0.so.5 libnl-route-3.so.200.23.0 libtic.so.5
libevent_pthreads-2.0.so.5.1.9 libnl-xfrm-3.so.200 libtic.so.5.9
libexpat.so.1 libnl-xfrm-3.so.200.23.0 libtinfo.so.5
libexpat.so.1.6.0 libnsl-2.17.so libtinfo.so.5.9
libext2fs.so.2 libnsl.so.1 libtirpc.so.1
libext2fs.so.2.4 libnspr4.so libtirpc.so.1.0.10
libfastjson.so.4 libnss3.so libudev.so.1
libfastjson.so.4.0.0 libnssckbi.so libudev.so.1.6.2
libffi.so.6 libnss_compat-2.17.so libunistring.so.0
libffi.so.6.0.1 libnss_compat.so.2 libunistring.so.0.1.2
libfipscheck.so.1 libnss_db-2.17.so libuser
libfipscheck.so.1.2.1 libnssdbm3.chk libuser.so.1
libform.so.5 libnssdbm3.so libuser.so.1.5.0
libform.so.5.9 libnss_db.so.2 libustr-1.0.so.1
libformw.so.5 libnss_dns-2.17.so libustr-1.0.so.1.0.4
libformw.so.5.9 libnss_dns.so.2 libutempter.so.0
libfreebl3.chk libnss_files-2.17.so libutempter.so.1.1.6
libfreebl3.so libnss_files.so.2 libutil-2.17.so
libfreeblpriv3.chk libnss_hesiod-2.17.so libutil.so.1
libfreeblpriv3.so libnss_hesiod.so.2 libuuid.so.1
libfreetype.so.6 libnss_myhostname.so.2 libuuid.so.1.3.0
libfreetype.so.6.14.0 libnss_mymachines.so.2 libverto-libevent.so.1
libgcc_s-4.8.5-20150702.so.1 libnss_nis-2.17.so libverto-libevent.so.1.0.0
libgcc_s.so.1 libnss_nisplus-2.17.so libverto.so.1
libgcrypt.so.11 libnss_nisplus.so.2 libverto.so.1.0.0
libgcrypt.so.11.8.2 libnss_nis.so.2 libwrap.so.0
libgdbm_compat.so.4 libnsspem.so libwrap.so.0.7.6
libgdbm_compat.so.4.0.0 libnsssysinit.so libxml2.so.2
libgdbm.so.4 libnssutil3.so libxml2.so.2.9.1
libgdbm.so.4.0.0 libnuma.so.1 libxtables.so.10
libGeoIP.so.1 libomapi.so.0 libxtables.so.10.0.0
libGeoIP.so.1.5.0 libomapi.so.0.0.0 libyaml-0.so.2
libGeoIPUpdate.so.0 libopcodes-2.27-34.base.el7.so libyaml-0.so.2.0.4
libGeoIPUpdate.so.0.0.0 libp11-kit.so.0 libz.so.1
libgettextlib-0.19.8.1.so libp11-kit.so.0.3.0 libz.so.1.2.7
libgettextpo.so.0 libpamc.so.0 lua
libgettextpo.so.0.5.4 libpamc.so.0.82.1 man-db
libgettextsrc-0.19.8.1.so libpam_misc.so.0 mysql
libgio-2.0.so.0 libpam_misc.so.0.82.0 nss
libgio-2.0.so.0.5600.1 libpam.so.0 openssl
libgirepository-1.0.so.1 libpam.so.0.83.1 p11-kit-proxy.so
libgirepository-1.0.so.1.0.0 libpanel.so.5 p11-kit-trust.so
libglib-2.0.so.0 libpanel.so.5.9 pkcs11
libglib-2.0.so.0.5600.1 libpanelw.so.5 pkgconfig
libgmodule-2.0.so.0 libpanelw.so.5.9 pm-utils
libgmodule-2.0.so.0.5600.1 libparted-fs-resize.so python2.7
libgmp.so.10 libparted-fs-resize.so.0 rsyslog
libgmp.so.10.2.0 libparted-fs-resize.so.0.0.0 rtkaio
libgmpxx.so.4 libparted.so.2 sasl2
libgmpxx.so.4.4.0 libparted.so.2.0.0 security
libgobject-2.0.so.0 libpath_utils.so.1 setools
libgobject-2.0.so.0.5600.1 libpath_utils.so.1.0.1 sse2
libgomp.so.1 libpci.so.3 tc
libgomp.so.1.0.0 libpci.so.3.5.1 tls
libgpg-error.so.0 libpcprofile.so X11
libgpg-error.so.0.10.0 libpcre16.so.0 xtables
cd /mnt
- 디스크, ROM 등 마운트 할 깨 포인터가 되는 디렉터리
[root@DESKTOP-9IVP0T4 /]# cd /mnt
[root@DESKTOP-9IVP0T4 mnt]#
[root@DESKTOP-9IVP0T4 mnt]# ls
c d f wsl
cd /opt
응용 프로그램 들의 설티를 위해 사용되는 디렉터리.
[root@DESKTOP-9IVP0T4 /]#
[root@DESKTOP-9IVP0T4 /]# cd /opt
[root@DESKTOP-9IVP0T4 opt]# ls
cd /proc
- 프로세스 상태 정도, 하드웨어 정보, 기타 시스템 정보가 들어있다.
[root@DESKTOP-9IVP0T4 /]# cd /proc
[root@DESKTOP-9IVP0T4 proc]# ls
1 buddyinfo cpuinfo execdomains irq kpagecgroup misc partitions swaps uptime
10 bus crypto filesystems kallsyms kpagecount modules sched_debug sys version
11 cgroups devices fs kcore kpageflags mounts schedstat sysvipc vmallocinfo
46 cmdline diskstats interrupts keys loadavg mtrr self thread-self vmstat
9 config.gz dma iomem key-users locks net softirqs timer_list zoneinfo
acpi consoles driver ioports kmsg meminfo pagetypeinfo stat tty
[root@DESKTOP-9IVP0T4 proc]#
cd /sbin
- System Binary 약자,
- root 가 사용하는 명령어의 집합.
[root@DESKTOP-9IVP0T4 /]# cd /sbin
[root@DESKTOP-9IVP0T4 sbin]# ls
accessdb fsfreeze mkswap selabel_digest
addgnupghome fstrim modinfo selabel_lookup
addpart genhomedircon modprobe selabel_lookup_best_match
adduser genhostid mount.drvfs selabel_partial_match
agetty genl mount.nfs selinuxconlist
alternatives genl-ctrl-list mount.nfs4 selinuxdefcon
anacron getcap mountstats selinuxenabled
applygnupgdefaults getenforce nameif selinuxexeccon
arp getpcaps netreport selinux_restorecon
arpd getsebool new-kernel-pkg semanage
arping glibc_post_upgrade.x86_64 newusers semodule
audispd groupadd nfsdcltrack sendmail
auditctl groupdel nfsidmap sendmail.postfix
auditd groupmems nfsiostat service
augenrules groupmod nfsstat sestatus
aureport grpck nl-class-add setcap
ausearch grpconv nl-class-delete setenforce
authconfig grpunconv nl-classid-lookup setfiles
authconfig-tui grub2-bios-setup nl-class-list setquota
autrace grub2-get-kernel-settings nl-cls-add setsebool
avcstat grub2-install nl-cls-delete sfdisk
badblocks grub2-macbless nl-cls-list showmount
biosdecode grub2-mkconfig nl-link-list shutdown
blkdeactivate grub2-ofpathname nl-pktloc-lookup slattach
blkdiscard grub2-probe nl-qdisc-add sln
blkid grub2-reboot nl-qdisc-delete sm-notify
blkmapd grub2-rpm-sort nl-qdisc-list smtp-sink
blockdev grub2-set-default nologin smtp-source
bridge grub2-setpassword nstat ss
btrfs grub2-sparc64-setup osd_login sshd
btrfsck grubby ownership sshd-keygen
btrfs-convert gssproxy packer start-statd
btrfs-debug-tree halt pam_console_apply sulogin
btrfs-find-root hardlink pam_tally2 sushell
btrfs-image hwclock pam_timestamp_check swaplabel
btrfs-map-logical iconvconfig parted swapoff
btrfs-select-super iconvconfig.x86_64 partprobe swapon
btrfstune ifcfg partx switch_root
btrfs-zero-log ifconfig pidof sysctl
build-locale-archive ifdown ping6 sys-unconfig
cacertdir_rehash ifenslave pivot_root tc
capsh ifstat plipconfig tcpd
cbq ifup postalias tcpdmatch
cfdisk init postcat telinit
chcpu insmod postconf tracepath
chkconfig install-info postdrop tracepath6
chpasswd installkernel postfix try-from
chronyd intel-microcode2ucode postkick tune2fs
chroot ip postlock tuned
clock ip6tables postlog tuned-adm
clockdiff ip6tables-restore postmap udevadm
consoletype ip6tables-save postmulti umount.nfs
convertquota ipmaddr postqueue umount.nfs4
cracklib-check iptables postsuper unix_chkpwd
cracklib-format iptables-restore poweroff unix_update
cracklib-packer iptables-save ppp-watch update-alternatives
cracklib-unpacker iptunnel pwck useradd
create-cracklib-dict irqbalance pwconv userdel
crond kexec pwhistory_helper usermod
ctrlaltdel key.dns_resolver pwunconv usernetctl
ctstat killall5 quot vigr
debugfs kpartx quotacheck vipw
delpart lchage quotaoff virt-what
depmod ldattach quotaon visudo
devlink ldconfig quotastats vmcore-dmesg
dhclient lgroupadd rdisc vpddecode
dhclient-script lgroupdel readprofile weak-modules
dmfilemapd lgroupmod reboot wipefs
dmidecode lid repquota wpa_cli
dmsetup lnewusers request-key wpa_passphrase
dmstats lnstat resize2fs wpa_supplicant
dracut load_policy resizepart xfs_admin
dumpe2fs logrotate restorecon xfs_bmap
e2freefrag logsave rmmod xfs_copy
e2fsck losetup route xfs_db
e2image lpasswd routef xfs_estimate
e2label lshw routel xfs_freeze
e2undo lsmod rpcbind xfs_fsr
e4defrag luseradd rpcdebug xfs_growfs
eapol_test luserdel rpc.gssd xfs_info
edquota lusermod rpc.idmapd xfs_io
ether-wake makedumpfile rpcinfo xfs_logprint
ethtool matchpathcon rpc.mountd xfs_mdrestore
exportfs mii-diag rpc.nfsd xfs_metadump
faillock mii-tool rpc.rquotad xfs_mkfile
fdformat mkdict rpc.statd xfs_ncheck
fdisk mkdumprd rsyslogd xfs_quota
filefrag mke2fs rtacct xfs_repair
findfs mkfs rtcwake xfs_rtcp
fixfiles mkfs.btrfs rtmon xqmstats
fsck mkfs.cramfs rtpr xtables-multi
fsck.btrfs mkfs.ext2 rtstat yum-complete-transaction
fsck.cramfs mkfs.ext3 runlevel yumdb
fsck.ext2 mkfs.ext4 runuser zdump
fsck.ext3 mkfs.minix safe_finger zic
fsck.ext4 mkfs.xfs sasldblistusers2 zramctl
fsck.minix mkhomedir_helper saslpasswd2
fsck.xfs mklost+found sefcontext_compile
cd /tmp
- 임시 저장 디렉토리
[root@DESKTOP-9IVP0T4 /]# cd /tmp
[root@DESKTOP-9IVP0T4 tmp]# ls
ks-script-hC0Oe8 ks-script-QQglrD yum.log
cd /usr
시스템 운영에 필요한 명령, 응용 프로그램들이 위치하는 디렉터리
[root@DESKTOP-9IVP0T4 /]# cd /usr
[root@DESKTOP-9IVP0T4 usr]# ls
bin etc games include lib lib64 libexec local sbin share src tmp
cd /var
시스템 운영로그 파일과 스풀링과 같은 가변적인 데이터를 보관하는 디렉터리
메일 서버로 운영하는 경우 도착한 메일이 이 디레거틸 하위 디렉터리에 존재하게 된다.
[root@DESKTOP-9IVP0T4 /]# cd /var
[root@DESKTOP-9IVP0T4 var]# ls
adm crash empty gopher lib lock mail opt run tmp
cache db games kerberos local log nis preserve spool yp
cd / media
- 이동식 장치를 마운트 하기 위해 제공되는 디렉토리
[root@DESKTOP-9IVP0T4 /]# cd /media
[root@DESKTOP-9IVP0T4 media]# ls
cd /srv
사이트에서 생성되는 데이터를 저장하는 디렉터리
[root@DESKTOP-9IVP0T4 /]# cd /srv
[root@DESKTOP-9IVP0T4 srv]# ls
cd /sys
가상 파일 시스템인 sysfs 에서 사용하는 디렉터리
usb 처럼 hot plug 디렉터리 정보를 가지고 있는 디렉터리 이다.
[root@DESKTOP-9IVP0T4 /]# cd /sys
[root@DESKTOP-9IVP0T4 sys]# ls
block bus class dev devices firmware fs kernel module
cd /run
부팅 이후에 동작중인 프로세스의 런타임 데이터를 저장하고 있는 디렉터리로 CentOS 부터 등장.
[root@DESKTOP-9IVP0T4 /]# cd /run
[root@DESKTOP-9IVP0T4 run]# ls
lock mount resolvconf shm user WSL
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