Jenkins: Disable all jobs in all folders

 https://github.com/jenkinsci/jenkins-scripts/blob/master/scriptler/disableAllJobsInAllFolders.groovy

Reduce /home and Add SWAP space in Centos 9

dnf install xfsdump

dnf install xfsrestore

 umount /home

xfsdump -f home.bkup /dev/mapper/ol-home

lvchange -an /dev/ol/home

 lvremove /dev/ol/home

 lvcreate -L 30G -n home ol

mkfs.xfs /dev/ol/home

 mount -a

 df -h

 xfsrestore -f home.bkup /home

ls /home

   df -h

 lvcreate -L 4G -n swap ol

  mkswap /dev/ol/swap

  swapon /dev/ol/swap

  echo "/dev/ol/swap swap swap defaults 0 0" >> /etc/fstab

free

ACL in Linux

ACL in Linux

Set ACL

  setfacl -m user:clinton:rwx /testfolder

Verify ACL

 getfacl /testfolder

Remove ACL

setfacl -R -x u:cgao /testfolder

  getfacl /testfolder