linux - How to delete files from directory using rm -rf? -

i have directory exam 2 files in it. need delete files permission denied. ![rm -rf][1] command can't delete these files. logged in root user.

# rm -rf exam_a # rm -rf exam_b

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from root user check attributes of files

# lsattr

if notice i or a

# man chattr # chattr -i [filename] # chattr -a [filename]

if doesn't work reboot system.

Call