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7/21/2019 RHEL 567 Commands Cheatsheet
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https://access.redhat.com/solutions/7373737/21/2019 RHEL 567 Commands Cheatsheet
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7/21/2019 RHEL 567 Commands Cheatsheet
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7/21/2019 RHEL 567 Commands Cheatsheet
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FILE SYSTEMS, VOLUMES, AND DISKS
TASK RHEL
Default le system
ext3
ext4
xfs
Defragment disk space
copy data to new le system
fsck (look for non-contiguous inodes)
copy data to new le systemfsck (look for non-contiguous inodes)
xfs_fsr
Create/modify disk partitions
fdisk
parted
fdisk
gdisk
parted
ssm create
Format disk partition
mkfs.lesystem_type (ext4, xfs)
mkswap
mkfs.lesystem_type (ext4, xfs)
mkswap
ssm create
Mount storage
mount
/etc/fstab
mount
/etc/fstab
ssm mount
Create physical volume
pvcreate
pvcreate
ssm create (if backend is lvm)
Create volume group
vgcreate
vgcreatessm create (if backend is lvm)
Create logical volume
lvcreate
lvcreate
ssm create (if backend is lvm)
Enlarge volumes formatted withdefault le system
vgextend
lvextend
resize2fs
vgextend
lvextend
xfs_growfs
ssm resize
Shrink volumes formatted withdefault le system
resize2fslvreduce
vgreduce
XFS cannot currently be shrunk; copy desired data to
a smaller le system.
Check/repair le system
fsck
fsck
ssm check
Congure NFS share
/etc/exports
service nfs reload
/etc/exports
systemctl reload nfs.service
Mount and activate swap/etc/fstab
swapon -a
Congure static mounts /etc/fstab
View free disk space df
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7/21/2019 RHEL 567 Commands Cheatsheet
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