Osiemnaste_21

list all available contexts existing in the system and files associated with them

semanage fcontext -l

list all available contexts existing in the system and files associated with them optional, any subdirectory coming after / has the same contenx as parent directory in SELinux

(/.*)?

restore context of the parent directory to the content

restorecon index. html

which file has to exist to relabel files in the system

/.autorelabel

How to apply context to the firectory?

semanage fcontex -a -t <context_t> '<directory(/.*)?>'

restoring content recursively, verbosely

restorecon -Rv /content

How to remove context?

seamange fcontex -d "<directory(/.*)?>"

display boolean values

getsebool -a / semanage boolean -t

enables homedirs in SELinux (not persistent)

setsebool httpd_enable_homedirs on

enables homedirs in SELinux (persistent)

setsebool -P httpd_enable_homedirs

How to install troubleshooter for selinux?

yum install setroubleshoot-server

which file contains information about SELinux violations?

/var/log/audit/audit.log

How to run troubleshooter?

sealert -a /var/log/audit/audit. log

" Replaces one with unos in a case-insensitive manner, so it will print ""unos TWO"""

echo ONE TWO | sed "s/one/unos/I"

A way to replace dos2unix:)

sed 'G; G' file. txt

Delete all spaces in front of every line of file. txt

sed 's/^[^t]*//' file. txt

Delete all spaces at the end of every line of file. txt

sed 's/[^t]*$//' file. txt

Delete all spaces in front and at the end of every line of file. txt

sed 's/^[^t]*//; s/[^]*$//' file. txt

Replace foo with bar only for the first instance in a line.

sed 's/foo/bar/' file. txt

Replace foo with bar only for the 4th instance in a line."

sed 's/foo/bar/4' file. txt

Replace foo with bar for all instances in a line.

sed 's/foo/bar/g' file. txt