History Commands
1 yum repolist
2 rm k
3 rm /root/k
4 cd /root/k
5 cd /root
6 ll
7 cd /etc/yum.repos.d/
8 ll
9 rm root_k.repo
10 yum repolist
11 yum update --security
12 yum repolist
13 ps ax
14 ps aux
15 ps ax|grep emacs
16 top
17 gnome-system-monitor
18 systemctl enable --now cockpit.socket
19 hostname
20 free
21 free -m
22 lsblk
23 blk
24 blkid
25 lsblk -l
26 blkid sda1
27 blkid sda2
28 blkid /dev/sda2
29 blkid -po udev /dev/sda2
30 findmnt
31 findmnt -l
32 findmnt -t xfs
33 df
34 df -h
35 df -h type xfs
36 df -th type xfs
37 df -Th type xfs
38 df -Th xfs
39 df -Th
40 df -th xfs
41 df -h xfs
42 df -h
43 du
44 du /
45 su - balu
46 who -r
47 who -a
48 su - balulnt
49 yum install rasdaemon
50 systemctl start rasdaemon
2 rm k
3 rm /root/k
4 cd /root/k
5 cd /root
6 ll
7 cd /etc/yum.repos.d/
8 ll
9 rm root_k.repo
10 yum repolist
11 yum update --security
12 yum repolist
13 ps ax
14 ps aux
15 ps ax|grep emacs
16 top
17 gnome-system-monitor
18 systemctl enable --now cockpit.socket
19 hostname
20 free
21 free -m
22 lsblk
23 blk
24 blkid
25 lsblk -l
26 blkid sda1
27 blkid sda2
28 blkid /dev/sda2
29 blkid -po udev /dev/sda2
30 findmnt
31 findmnt -l
32 findmnt -t xfs
33 df
34 df -h
35 df -h type xfs
36 df -th type xfs
37 df -Th type xfs
38 df -Th xfs
39 df -Th
40 df -th xfs
41 df -h xfs
42 df -h
43 du
44 du /
45 su - balu
46 who -r
47 who -a
48 su - balulnt
49 yum install rasdaemon
50 systemctl start rasdaemon
51 systemctl enable rasdaemon
52 ras-mc-ctl --help
53 ras-mc-ct --mainboard
54 ras-mc-ct --summary
55 ras-mc-ctl --summary
56 ras-mc-ctl --errors
57 systemctl start snmpd.service
58 systemctl start snmpd
59 systemctl install snmpd
60 yum install snmpd
61 yum list all
62 yum list all|grep httpd
63 scp /etc/yum.repos.d/redhat.repo apple@192.168.0.103:/Users/apple
64 systemctl start snmpd
65 systemctl start snmpd.service
66 dnf install net-snmp
67 systemctl start snmpd
68 systemctl status snmpd
69 vim /etc/snmp/snmpd.conf
70 systemctl reload snmpd
71 systemctl restart snmpd
72 systemctl status firewalld
73 systemctl status firewall*
74 systemctl status firewa*
75 systemctl status fir:
76 systemctl status fir*
77 setenforce 1
78 getenforce
79 getenforce 0
80 getenforce
81 setenforce 0
82 getenforce
83 rpm -q kexec-tools
84 yum install system-config-kd*
85 yum install system-config-kdump
86 yum install kexec-tools
87 yum install system-config-kdump
88 system-config-kdump
89 localectl list-locales | grep en
90 loaclectl set-locale LANG=locale
91 localectl set-locale LANG=locale
92 localectl set-locale LANG=en_GB.utf8
93 localectl status
94 localectl list-keymaps | grep cz
95 localectl set-keymap map
96 loaclectl set-x11-keymap map
97 localectl set-x11-keymap map
98 localectl list-keymaps
99 localectl list-keymaps|grep *mac
100 localectl list-keymaps|grep mac
52 ras-mc-ctl --help
53 ras-mc-ct --mainboard
54 ras-mc-ct --summary
55 ras-mc-ctl --summary
56 ras-mc-ctl --errors
57 systemctl start snmpd.service
58 systemctl start snmpd
59 systemctl install snmpd
60 yum install snmpd
61 yum list all
62 yum list all|grep httpd
63 scp /etc/yum.repos.d/redhat.repo apple@192.168.0.103:/Users/apple
64 systemctl start snmpd
65 systemctl start snmpd.service
66 dnf install net-snmp
67 systemctl start snmpd
68 systemctl status snmpd
69 vim /etc/snmp/snmpd.conf
70 systemctl reload snmpd
71 systemctl restart snmpd
72 systemctl status firewalld
73 systemctl status firewall*
74 systemctl status firewa*
75 systemctl status fir:
76 systemctl status fir*
77 setenforce 1
78 getenforce
79 getenforce 0
80 getenforce
81 setenforce 0
82 getenforce
83 rpm -q kexec-tools
84 yum install system-config-kd*
85 yum install system-config-kdump
86 yum install kexec-tools
87 yum install system-config-kdump
88 system-config-kdump
89 localectl list-locales | grep en
90 loaclectl set-locale LANG=locale
91 localectl set-locale LANG=locale
92 localectl set-locale LANG=en_GB.utf8
93 localectl status
94 localectl list-keymaps | grep cz
95 localectl set-keymap map
96 loaclectl set-x11-keymap map
97 localectl set-x11-keymap map
98 localectl list-keymaps
99 localectl list-keymaps|grep *mac
100 localectl list-keymaps|grep mac
101 localectl set-keymap mac-us
102 localectl set-x11-keymap map
103 localectl set-x11-keymap mac-us
104 cd /mnt
105 ll
106 cd /opt/
107 ll
108 cd AppStream/
109 ll
110 cd /mnt/
111 ll
112 cd AppStream/
113 ll
114 cd /opt/
115 ll
116 cd ../
117 cd /opt/
118 ll
119 rsync -r /mnt/ /opt/
120 rsync -rv /mnt/ /opt/
121 hwclock
122 timedatectl list-timezones |grep Europe
123 timedatectl list-timezones |grep india
124 timedatectl list-timezones |grep Asia
125 timedatectl list-timezones |grep Asia/India
126 timedatectl list-timezones |grep -i india
127 timedatectl list-timezones |grep -i asia
128 timedatectl set-ntp boolean
129 timedatectl set-ntp 1
130 timedatectl
131 timedatectl set-ntp 0
132 timedatectl
133 timedatectl set-local-rtc 1
134 timedatectl set-time 22:13:00
135 timedatectl
136 timedatectl set-local-rtc 0
137 timedatectl
138 timedatectl list-timezones
139 timedatectl list-timezones|grep asia
140 timedatectl list-timezones|grep -i asi
141 timedatectl set-timezone Asia/Kolkatta
142 timedatectl set-timezone Asia/Kolkata
143 timedatectl set-timezone Asia/Tokyo
144 timedatectl
145 timedatectl set-timezone Asia/Kolkata
146 timedatectl set-ntp 1
147 timedatectl 148 date
149 date --utc
150 date
102 localectl set-x11-keymap map
103 localectl set-x11-keymap mac-us
104 cd /mnt
105 ll
106 cd /opt/
107 ll
108 cd AppStream/
109 ll
110 cd /mnt/
111 ll
112 cd AppStream/
113 ll
114 cd /opt/
115 ll
116 cd ../
117 cd /opt/
118 ll
119 rsync -r /mnt/ /opt/
120 rsync -rv /mnt/ /opt/
121 hwclock
122 timedatectl list-timezones |grep Europe
123 timedatectl list-timezones |grep india
124 timedatectl list-timezones |grep Asia
125 timedatectl list-timezones |grep Asia/India
126 timedatectl list-timezones |grep -i india
127 timedatectl list-timezones |grep -i asia
128 timedatectl set-ntp boolean
129 timedatectl set-ntp 1
130 timedatectl
131 timedatectl set-ntp 0
132 timedatectl
133 timedatectl set-local-rtc 1
134 timedatectl set-time 22:13:00
135 timedatectl
136 timedatectl set-local-rtc 0
137 timedatectl
138 timedatectl list-timezones
139 timedatectl list-timezones|grep asia
140 timedatectl list-timezones|grep -i asi
141 timedatectl set-timezone Asia/Kolkatta
142 timedatectl set-timezone Asia/Kolkata
143 timedatectl set-timezone Asia/Tokyo
144 timedatectl
145 timedatectl set-timezone Asia/Kolkata
146 timedatectl set-ntp 1
147 timedatectl 148 date
149 date --utc
150 date
151 date --utc
152 date +"5:30"
153 date +"date"
154 date
155 date --utc
156 date +"%Y-%m-%d%H:%M"
157 hwclock
158 cat /usr/share/doc/setup*/uidgid
159 cat /usr/share/doc/setup/uidgid
160 mount /dev/sr0 /mnt/
161 cp -R /dev/* /opt/
162 cd /opt/
163 ll
164 cd ..
165 rm -R /opt/*
166 rm -Rf /opt/*
167 cp -R /dev/sr0/* /opt/
168 cp -Rf /dev/sr0/* /opt/
169 cp /mnt/* /opt/
170 cd /opt/
171 ll
172 rm -rf .
173 ll\
174 ll
175 cd ../
176 rm -rf /opt/*
177 cp -rf /mnt/ /opt/
178 cd /opt/
179 ll
180 rm -rf mnt/
181 cd ../
182 cp -rf /mnt/* /opt/
183 cd /opt/
184 ll
185 rm -rf AppStream/
186 cd ../
187 rsync --help
188 ll
189 top
190 cd /opt/
191 ll
192 umount /mnt
193 cd /mnt/
194 ll
195 mount /dev/sr0 /mnt/
196 ll
197 mount /dev/sr0 /mnt/
198 cd /opt/AppStream/
199 ll
200 cd /opt/BaseOS/
201 ll
202 vim /etc/yum.repos.d/redhat.repo
203 yum search http*
204 vim /etc/yum.repos.d/redhat.repo
205 yum search http*
206 rpm -q httpd
207 cd /opt/
208 cd /mnt/
209 ll
210 rm -rf /opt/
211 ll
212 cd /opt
213 mkdir /opt
214 cd /opt/
215 ll
216 cd /mnt/
217 cd /opt/
218 ll
219 vi /etc/bashrc
220 vi /etc/bashrc_profile
221 c
222 exit
223 c
224 rm -i /etc/bashrc_profile
225 cd /etc/
226 vim ~/.bash_profile
227 exit
228 useradd ba
229 useradd -c 'software_engineer' -d /home/ -e '2020-02-30' -g soft -f 7
230 useradd -c 'software_engineer' -d /home/ -e '2020-02-30' -f 7
231 useradd -c 'software_engineer' -d /home/ -e '2020-02-30' -f 7
232 useradd -c 'software_engineer' -d '/home/' -e '2020-02-30' -f 7
233 useradd -c 'software_engineer' -d '/home/ software_balu
234 useradd -c 'software_engineer' -d '/home/ soft
235 useradd -c 'software_engineer' -d '/home/' soft
236 useradd -c 'software_engineer' -d '/opt/' soft
237 useradd -c 'software_engineer' -d '/opt/' software
238 useradd -c 'software_engineer' software
239 tail /etc/passwd
240 mkdir /opt/project
241 groupadd myproject
242 usermod -g myproject ba
243 usermod -g myproject ca
244 usermod -G myproject balu
245 usermod -G myproject balulnt
246 chown root:myproject /opt/project/
247 chmod 2775 /opt/myproject
248 chmod 2775 /opt/
249 ll
250 cd /opt/
251 ll
252 cd project/
253 ll
254 chmod 2775 /opt/project/
255 su - balulnt
256 su - ba
257 passwd ca
258 su - ca
259 3775 /opt/project/
260 chmod 3775 /opt/project/
261 su - ba
262 su - ca
263 useradd test
264 su - test
265 usermod -g myproject ca
266 su - ca
267 su - ca
268 useradd ca
269 su - ca
270 umask
271 umask S
272 umask s
273 umask -S
274 umask 0337
275 umask _S
276 umask -S
277 grep -i -B 1 umask /etc/bashrc
278 vi /etc/bashrc
279 umask
280 sourcd /etc/bashrc
281 source /etc/bashrc
282 umask
283 vi /etc/bashrc
284 exit
285 umask
286 source /etc/bashrc
287 umask
288 vi /etc/bash
289 vi /etc/bashr
290 vi /etc/bashrc
291 su - balulnt
292 pwconv
293 cat pwconv
294 mount -t ext4 -o acl /dev/rhel/home /opt/project/
295 ll
296 su - test
297 grpck
298 pwck
299 cat /etc/group
300 su -
301 umask
302 yum install tiger*
303 mount /dev/sr0 /mnt/
304 yum install tiger*
305 vncserver
306 ls -lah ~/.vnc/
307 vncserver -list
308 vncserver -kill :1
309 mv ~/.vnc/xstartup ~/.vnc/xstartup.bekup
310 vim ~/.vnc/xstartup
311 cp /etc/X11/Xresources ~/.Xresources
312 chmod +x ~/.vnc/xstartup
313 vncserver
314 vncserver -list
315 cd /etc/systemd/system
316 vim vncserver@.service
317 systemctl daemon-reload
318 systemctl start vncserver@1.service
319 systemctl status vncserver@1.service
320 systemctl enable vncserver@1.service
321 systemctl status vncserver@1.service
322 ssh -L 5901:127.0.0.1:5901 -N -f -l root 192.168.0.111
323 systemctl start vncserver@1.service
324 journalctl -xe
325 ssh -L 5901:127.0.0.1:5901 -N -f -l edward 192.168.33.10
326 ssh -L 5901:127.0.0.1:5901 -N -f -l edward 192.168.0.111
327 ssh -L 5901:127.0.0.1:5901 -N -f -l root 192.168.0.111
328 ssh -L 5901:127.0.0.1:5902 -N -f -l root 192.168.0.111
329 ssh -L 5902:127.0.0.1:5902 -N -f -l root 192.168.0.111
330 journalctl
331 yum remove tiger*
332 journalctl -xe
333 man acl
334 man getfacl
335 sudo command
336 cat /etc/sudoers
337 less /etc/sudoers
338 yum search tiger*
339 systemctl enable --now cockpit.socket
340 umount /opt/
341 mount -o rw /dev/sr0 /opt/
342 mount -o rw,loop /dev/sr0 /opt/
343 cd /opt/
344 ll
345 umount /opt
346 df -h
347 touch 1
348 ll
349 yum history check-update
350 yum history erase
351 yum history
352 yum history info
353 yum history install
354 yum history -install
355 exit
356 lsblk
357 lsusb
358 lsscsi
359 uname -ra
360 uname -r
361 uname -a
362 lmishell
363 lspci -t
364 modprobe foo
365 lsmod
366 ls -l /dev/hda1 /dev/psaux
367 ls -l /dev/sda1
368 udisksctl info -b /dev/sdb
369 udisksctl info -b /dev/sda
370 lsmod
371 udevd
372 w
373 last
374 last -h
375 last -s
376 last -S
377 last -since
378 last --since
379 last --since 22:10
380 last --fullnames balulnt
381 last --fullnames root
382 c
383 vi ~/.bash_profile
384 c
385 e
386 exit
387 e
388 g
389 e
390 lspci
391 lspci -v
392 e
393 exit
394 ps -u
395 su - balulnt
396 hostnamectl bala_test
397 hostname bala_test
398 hostname bala_test.server1.com
399 vi /etc/hosts
400 hostnamectl bala_testserver
401 hostnamectl bala_testserver.example.com
402 hostname bala_testserver.example.com
403 hostname balatestserver.example.com
404 hostnamectl balatestserver.example.com
405 exit
406 gnome-system-monitor
407 yum history
408 yum remove gnome*
409 gnome-system-monitor
410 yum install gnome*
411 ps -eo pid,comm,%cpu,%mem --sort=-%cpu | head -n 5
412 ps -eo pid,comm,%cpu,%mem --sort=-%mem | head -n 5
413 hostnamectl bala-testserver
414 hostnamectl bala-testserver.example.com
415 hostnamectl set-hostname bala-testserver.example.com
416 exit
417 mv /etc/yum.repos.d/redhat.repo /etc/yum.repos.d/rhel7.5.repo
418 less /etc/yum.repos.d/rhel7.5.repo
419 rpm -q ssh
420 rpm -q ssh*
421 rpm -q sshd
422 rpm -q openssh
423 yum install yum-downloadonly
424 yum install --downloadonly --downloaddir openssh
425 yum install yum*
426 yum install --downloadonly httpd
427 yum r httpd
428 yum install --downloadonly httpd
429 ll
430 vi /etc/yum.repos.d/rhel7.5.repo
431 less /etc/yum.repos.d/rhel7.5.repo
432 yum install httpd
433 ps -eo pid,comm,%cpu,%mem --sort=-%mem | head -n 5
434 ps -eo pid,comm,%cpu,%mem --sort=-%mem | head -n 10
435 top -10
436 top 10
437 top
438 less /proc/cpuinfo
439 yum update httpd
440 yum check-update
441 Systemctl enable httpd
442 systemctl enable httpd
443 systemctl 0 httpd
444 systemctl httpd 0
445 systemctl httpd 1
446 systemctl 1 httpd
447 systemctl disable httpd
448 systemctl enable httpd
449 systemctl disable httpd
450 top
451 c
452 systemctl status httpd.service
453 lsblk
454 free -m
455 yum reinstall httpd
456 yum update --security
457 yum repo-list
458 yum repolist
459 c
460 yum repolist
461 yum provides httpd
462 yum info httpd
152 date +"5:30"
153 date +"date"
154 date
155 date --utc
156 date +"%Y-%m-%d%H:%M"
157 hwclock
158 cat /usr/share/doc/setup*/uidgid
159 cat /usr/share/doc/setup/uidgid
160 mount /dev/sr0 /mnt/
161 cp -R /dev/* /opt/
162 cd /opt/
163 ll
164 cd ..
165 rm -R /opt/*
166 rm -Rf /opt/*
167 cp -R /dev/sr0/* /opt/
168 cp -Rf /dev/sr0/* /opt/
169 cp /mnt/* /opt/
170 cd /opt/
171 ll
172 rm -rf .
173 ll\
174 ll
175 cd ../
176 rm -rf /opt/*
177 cp -rf /mnt/ /opt/
178 cd /opt/
179 ll
180 rm -rf mnt/
181 cd ../
182 cp -rf /mnt/* /opt/
183 cd /opt/
184 ll
185 rm -rf AppStream/
186 cd ../
187 rsync --help
188 ll
189 top
190 cd /opt/
191 ll
192 umount /mnt
193 cd /mnt/
194 ll
195 mount /dev/sr0 /mnt/
196 ll
197 mount /dev/sr0 /mnt/
198 cd /opt/AppStream/
199 ll
200 cd /opt/BaseOS/
201 ll
202 vim /etc/yum.repos.d/redhat.repo
203 yum search http*
204 vim /etc/yum.repos.d/redhat.repo
205 yum search http*
206 rpm -q httpd
207 cd /opt/
208 cd /mnt/
209 ll
210 rm -rf /opt/
211 ll
212 cd /opt
213 mkdir /opt
214 cd /opt/
215 ll
216 cd /mnt/
217 cd /opt/
218 ll
219 vi /etc/bashrc
220 vi /etc/bashrc_profile
221 c
222 exit
223 c
224 rm -i /etc/bashrc_profile
225 cd /etc/
226 vim ~/.bash_profile
227 exit
228 useradd ba
229 useradd -c 'software_engineer' -d /home/ -e '2020-02-30' -g soft -f 7
230 useradd -c 'software_engineer' -d /home/ -e '2020-02-30' -f 7
231 useradd -c 'software_engineer' -d /home/ -e '2020-02-30' -f 7
232 useradd -c 'software_engineer' -d '/home/' -e '2020-02-30' -f 7
233 useradd -c 'software_engineer' -d '/home/ software_balu
234 useradd -c 'software_engineer' -d '/home/ soft
235 useradd -c 'software_engineer' -d '/home/' soft
236 useradd -c 'software_engineer' -d '/opt/' soft
237 useradd -c 'software_engineer' -d '/opt/' software
238 useradd -c 'software_engineer' software
239 tail /etc/passwd
240 mkdir /opt/project
241 groupadd myproject
242 usermod -g myproject ba
243 usermod -g myproject ca
244 usermod -G myproject balu
245 usermod -G myproject balulnt
246 chown root:myproject /opt/project/
247 chmod 2775 /opt/myproject
248 chmod 2775 /opt/
249 ll
250 cd /opt/
251 ll
252 cd project/
253 ll
254 chmod 2775 /opt/project/
255 su - balulnt
256 su - ba
257 passwd ca
258 su - ca
259 3775 /opt/project/
260 chmod 3775 /opt/project/
261 su - ba
262 su - ca
263 useradd test
264 su - test
265 usermod -g myproject ca
266 su - ca
267 su - ca
268 useradd ca
269 su - ca
270 umask
271 umask S
272 umask s
273 umask -S
274 umask 0337
275 umask _S
276 umask -S
277 grep -i -B 1 umask /etc/bashrc
278 vi /etc/bashrc
279 umask
280 sourcd /etc/bashrc
281 source /etc/bashrc
282 umask
283 vi /etc/bashrc
284 exit
285 umask
286 source /etc/bashrc
287 umask
288 vi /etc/bash
289 vi /etc/bashr
290 vi /etc/bashrc
291 su - balulnt
292 pwconv
293 cat pwconv
294 mount -t ext4 -o acl /dev/rhel/home /opt/project/
295 ll
296 su - test
297 grpck
298 pwck
299 cat /etc/group
300 su -
301 umask
302 yum install tiger*
303 mount /dev/sr0 /mnt/
304 yum install tiger*
305 vncserver
306 ls -lah ~/.vnc/
307 vncserver -list
308 vncserver -kill :1
309 mv ~/.vnc/xstartup ~/.vnc/xstartup.bekup
310 vim ~/.vnc/xstartup
311 cp /etc/X11/Xresources ~/.Xresources
312 chmod +x ~/.vnc/xstartup
313 vncserver
314 vncserver -list
315 cd /etc/systemd/system
316 vim vncserver@.service
317 systemctl daemon-reload
318 systemctl start vncserver@1.service
319 systemctl status vncserver@1.service
320 systemctl enable vncserver@1.service
321 systemctl status vncserver@1.service
322 ssh -L 5901:127.0.0.1:5901 -N -f -l root 192.168.0.111
323 systemctl start vncserver@1.service
324 journalctl -xe
325 ssh -L 5901:127.0.0.1:5901 -N -f -l edward 192.168.33.10
326 ssh -L 5901:127.0.0.1:5901 -N -f -l edward 192.168.0.111
327 ssh -L 5901:127.0.0.1:5901 -N -f -l root 192.168.0.111
328 ssh -L 5901:127.0.0.1:5902 -N -f -l root 192.168.0.111
329 ssh -L 5902:127.0.0.1:5902 -N -f -l root 192.168.0.111
330 journalctl
331 yum remove tiger*
332 journalctl -xe
333 man acl
334 man getfacl
335 sudo command
336 cat /etc/sudoers
337 less /etc/sudoers
338 yum search tiger*
339 systemctl enable --now cockpit.socket
340 umount /opt/
341 mount -o rw /dev/sr0 /opt/
342 mount -o rw,loop /dev/sr0 /opt/
343 cd /opt/
344 ll
345 umount /opt
346 df -h
347 touch 1
348 ll
349 yum history check-update
350 yum history erase
351 yum history
352 yum history info
353 yum history install
354 yum history -install
355 exit
356 lsblk
357 lsusb
358 lsscsi
359 uname -ra
360 uname -r
361 uname -a
362 lmishell
363 lspci -t
364 modprobe foo
365 lsmod
366 ls -l /dev/hda1 /dev/psaux
367 ls -l /dev/sda1
368 udisksctl info -b /dev/sdb
369 udisksctl info -b /dev/sda
370 lsmod
371 udevd
372 w
373 last
374 last -h
375 last -s
376 last -S
377 last -since
378 last --since
379 last --since 22:10
380 last --fullnames balulnt
381 last --fullnames root
382 c
383 vi ~/.bash_profile
384 c
385 e
386 exit
387 e
388 g
389 e
390 lspci
391 lspci -v
392 e
393 exit
394 ps -u
395 su - balulnt
396 hostnamectl bala_test
397 hostname bala_test
398 hostname bala_test.server1.com
399 vi /etc/hosts
400 hostnamectl bala_testserver
401 hostnamectl bala_testserver.example.com
402 hostname bala_testserver.example.com
403 hostname balatestserver.example.com
404 hostnamectl balatestserver.example.com
405 exit
406 gnome-system-monitor
407 yum history
408 yum remove gnome*
409 gnome-system-monitor
410 yum install gnome*
411 ps -eo pid,comm,%cpu,%mem --sort=-%cpu | head -n 5
412 ps -eo pid,comm,%cpu,%mem --sort=-%mem | head -n 5
413 hostnamectl bala-testserver
414 hostnamectl bala-testserver.example.com
415 hostnamectl set-hostname bala-testserver.example.com
416 exit
417 mv /etc/yum.repos.d/redhat.repo /etc/yum.repos.d/rhel7.5.repo
418 less /etc/yum.repos.d/rhel7.5.repo
419 rpm -q ssh
420 rpm -q ssh*
421 rpm -q sshd
422 rpm -q openssh
423 yum install yum-downloadonly
424 yum install --downloadonly --downloaddir openssh
425 yum install yum*
426 yum install --downloadonly httpd
427 yum r httpd
428 yum install --downloadonly httpd
429 ll
430 vi /etc/yum.repos.d/rhel7.5.repo
431 less /etc/yum.repos.d/rhel7.5.repo
432 yum install httpd
433 ps -eo pid,comm,%cpu,%mem --sort=-%mem | head -n 5
434 ps -eo pid,comm,%cpu,%mem --sort=-%mem | head -n 10
435 top -10
436 top 10
437 top
438 less /proc/cpuinfo
439 yum update httpd
440 yum check-update
441 Systemctl enable httpd
442 systemctl enable httpd
443 systemctl 0 httpd
444 systemctl httpd 0
445 systemctl httpd 1
446 systemctl 1 httpd
447 systemctl disable httpd
448 systemctl enable httpd
449 systemctl disable httpd
450 top
451 c
452 systemctl status httpd.service
453 lsblk
454 free -m
455 yum reinstall httpd
456 yum update --security
457 yum repo-list
458 yum repolist
459 c
460 yum repolist
461 yum provides httpd
462 yum info httpd
463 poweroff.target
464 systemctl poweroff.target
465 systemctl runlevel0.target
466 systemctl isolate multi-user.target
467 systemctl set-default runlevel3.target
468 systemctl get-default
469 reboot
470 c
471 systemctl get-default
472 c
473 emergency
474 systemctl set-default emergency
475 reboot
476 systemctl default
477 systemctl set-default runlevel3.target
478 lsblk
479 systemctl get-default
480 journalctl -xb
481 q
482 fsck
483 systemctl set-default runleveltarget
484 systemctl set-default runlevel3.target
485 mount -o rw,remount /
486 systemctl set-default runlevel3.target
487 /.autorelabel
488 /.autorelable
489 ./autorelable
464 systemctl poweroff.target
465 systemctl runlevel0.target
466 systemctl isolate multi-user.target
467 systemctl set-default runlevel3.target
468 systemctl get-default
469 reboot
470 c
471 systemctl get-default
472 c
473 emergency
474 systemctl set-default emergency
475 reboot
476 systemctl default
477 systemctl set-default runlevel3.target
478 lsblk
479 systemctl get-default
480 journalctl -xb
481 q
482 fsck
483 systemctl set-default runleveltarget
484 systemctl set-default runlevel3.target
485 mount -o rw,remount /
486 systemctl set-default runlevel3.target
487 /.autorelabel
488 /.autorelable
489 ./autorelable
490 exit
491 cd /
492 ll
493 tail /etc/passwd
494 tail /etc/group
495 c
496 c
497 source ~/.bash_profile
498 c
499 cd /
500 ll
501 less /boot/grub2/grub.cfg
502 c
503 cd /etc/default/
504 ll
505 vi grub
506 less grub
507 less /etc/grub.d
508 vi /etc/grub.d/
509 less /etc/
510 visudo
511 c
512 update-grub
513 grub-install
514 grub2-install --boot-directory=/mnt/boot /dev/sda
515 grub2-install --boot-directory=/mnt/ /dev/sda
516 grub2-install /dev/sda
517 lsblk
518 grub2-install /dev/sda1
519 c
520 grub2-install /dev/sda
521 c
522 xchroot /sysroot
523 chroot /sysroot
524 ll
525 c
526 cd
527 xchroot
528 c
529 ll
530 c
531 history
532 su - balulnt
533 cd /
534 lls
535 ll
536 yum -y install cronie
537 mount /dev/sr0 /mnt
538 yum -y install cronie
539 service crond status
540 crontab -e
541 grubby --default-kernel
542 grubby --default-index
543 c
544 grubby --default-index
545 grubby --default-kernel
546 grubby --set-default /boot/vmlinuz-4.18.0-147.el8.x86_64
547 grub --info=ALL
548 grubby --info=ALL
549 c
550 grubby --info=ALL
551 grub2-mkconfig -o /boot/grub2/grub.cfg
552 c
553 grub2-setpassword
554 reboot
555 su -
556 grub-mkpasswd-pbkdf2
557 history
558 history >> history
559 less history
560 history > history.txt
491 cd /
492 ll
493 tail /etc/passwd
494 tail /etc/group
495 c
496 c
497 source ~/.bash_profile
498 c
499 cd /
500 ll
501 less /boot/grub2/grub.cfg
502 c
503 cd /etc/default/
504 ll
505 vi grub
506 less grub
507 less /etc/grub.d
508 vi /etc/grub.d/
509 less /etc/
510 visudo
511 c
512 update-grub
513 grub-install
514 grub2-install --boot-directory=/mnt/boot /dev/sda
515 grub2-install --boot-directory=/mnt/ /dev/sda
516 grub2-install /dev/sda
517 lsblk
518 grub2-install /dev/sda1
519 c
520 grub2-install /dev/sda
521 c
522 xchroot /sysroot
523 chroot /sysroot
524 ll
525 c
526 cd
527 xchroot
528 c
529 ll
530 c
531 history
532 su - balulnt
533 cd /
534 lls
535 ll
536 yum -y install cronie
537 mount /dev/sr0 /mnt
538 yum -y install cronie
539 service crond status
540 crontab -e
541 grubby --default-kernel
542 grubby --default-index
543 c
544 grubby --default-index
545 grubby --default-kernel
546 grubby --set-default /boot/vmlinuz-4.18.0-147.el8.x86_64
547 grub --info=ALL
548 grubby --info=ALL
549 c
550 grubby --info=ALL
551 grub2-mkconfig -o /boot/grub2/grub.cfg
552 c
553 grub2-setpassword
554 reboot
555 su -
556 grub-mkpasswd-pbkdf2
557 history
558 history >> history
559 less history
560 history > history.txt