Jun 03 19:48:49 linfun2.example.com systemd[1]: Started The Apache HTTP Server. Jun 03 19:49:09 linfun2.example.com httpd[64657]: Server configured, listening on: port 80 [root@linfun2 log]# history 1 exit 2 su - linda 3 sudo passwd linda 4 su - linda 5 exit 6 exit 7 systemctl status sshd 8 apt install openssh-server 9 systemctl enable --now sshd 10 ip a 11 firewall-cmd --list-all 12 ip a 13 exit 14 cd / 15 ls 16 ls -l 17 cd 18 ls 19 ls -a 20 ls -ld /etc 21 ls -l /etc 22 ls -lrt /etc/ 23 cat /etc/shadow 24 ls -lrt /etc/ 25 cd /etc 26 ls a* 27 ls -d a* 28 ls -d a?* 29 ls -d a?t* 30 ls -d a?[td]* 31 cd / 32 cd 33 mkdir hello 34 rmdir hello 35 cd / 36 ls -l 37 cd /var/log 38 ls -l 39 du -hs 40 cd /home 41 ls -l 42 ls -ld /tmp 43 cd student 44 touch studentfile 45 cp studentfile ../linda/ 46 ls 47 cp countdown /somedir 48 ls -l /somedir 49 rm /somedir 50 cp countdown /somedir/ 51 mkdir /somedir 52 cp countdown /somedir/ 53 LS 54 cp -Ra .* /tmp/student/ 55 mkdir /tmp/student/ 56 cp -Ra .* /tmp/student/ 57 rm -rf /tmp/student 58 pwd 59 mkdir /tmp/student; cp -Ra .* /tmp/student/ 60 mkdir /tmp/student; cp -R .* /tmp/student/ 61 ls 62 pwd 63 mv studentfile /tmp/ 64 ls 65 mv q qfile 66 ln /etc/hosts myhosts 67 ls -il /etc/hosts myhosts 68 echo hello >> myhosts 69 cat myhosts 70 ls -il /etc/hosts myhosts 71 ln -s /etc/hosts symhosts 72 ls -il /etc/hosts myhosts symhosts 73 rm /etc/hosts 74 ls -il /etc/hosts myhosts symhosts 75 cat symhosts 76 ln myhosts /etc/hosts 77 ls -il /etc/hosts myhosts symhosts 78 cd / 79 ls -l 80 cd /root 81 ln /boot/vmlinuz-4.18.0-147.el8.x86_64 mykernel 82 ln -s /boot/vmlinuz-4.18.0-147.el8.x86_64 mykernel 83 ln /etc myetc 84 ln -s /etc myetc 85 vim myscript 86 chmod +x myscript 87 ./myscript 88 find / -name "hosts" 89 find / -name "*hosts*" 90 tail /etc/passwd 91 find / -user linda 92 find / -user linda 2>/dev/null 93 find / -size +100M 94 mkdir /root/linda; find / -user linda -exec cp {} /root/linda/ \; 95 tar -cvf myarchive 96 tar -cvf myarchive /home /etc 97 ls -l myarchive 98 file myarchive 99 tar -tvf myarchive 100 tar -xvf myarchive 101 ls 102 pwd 103 rm -rf etc home 104 ls -l myarchive 105 tar czvf myarchive.tgz /etc/ /home 106 ls -l myarch* 107 tar -cjvf myarchive.bz2 /home /etc 108 ls -l myarch* 109 history 110 ls 111 man tar 112 history 113 xz myarchive 114 ls myarchive* 115 ls -l myarchive* 116 vim myvimdemo 117 less /var/log/messages 118 more /var/log/messages 119 cat /etc/hosts 120 tac /etc/hosts 121 tail -n 5 /var/log/messages 122 head -n 5 /var/log/messages 123 man type 124 type passwd 125 type ls 126 alias 127 alias sander='echo hello world' 128 sander 129 cd /etc 130 grep lisa * 131 grep lisa * 2>/dev/null 132 grep linda * 2>/dev/null 133 grep -l linda * 2>/dev/null 134 grep linda * 2>/dev/null 135 grep linda * 2>/dev/null | grep -v bash 136 grep -Rl linda * 137 grep -l root * 2>/dev/null 138 grep -lR root * 2>/dev/null 139 cd / 140 grep -l sander * 141 grep -lR sander * 142 find / -name countdown 143 echo $PATH 144 ln /usr/local/bin/countdown /usr/bin/countdown 145 countdown 13 146 cd 147 vim myfile 148 grep 'read' myfile 149 grep '^read' myfile 150 grep '^read$' myfile 151 man semanage-fcontext 152 history 153 cut linda /etc/passwd 154 cut -d : -f 1 /etc/passwd 155 cut -d : -f 1 /etc/passwd | grep linda 156 cut -d : -f 1 /etc/passwd | sort 157 cut -d : -f 1 /etc/passwd | sort -n 158 vim number 159 sort number 160 sort -n number 161 echo hello | tr [:lower:][:upper:] 162 echo hello | tr [:lower:] [:upper:] 163 echo hello | tr a-z A-Z 164 sed -n 5p /etc/passwd 165 head -5 /etc/passwd 166 head -5 /etc/passwd | tail -1 167 cat myfile 168 sed -i s/red/read/g myfile 169 cat myfile 170 sed -i -e '2d' myfile 171 cat myfile 172 cp myfile yourfile 173 ls 174 mv myfile myfile.txt 175 mv yourfile yourfile.txt 176 ls *txt 177 cat myfile.txt; cat yourfile.txt; for i in *txt; do sed -i -e '2d' $i; done 178 cat *txt 179 awk -F : '{ print $4 }' /etc/passwd 180 tail /etc/passwd 181 awk -F : '/linda/ { print $4 }' /etc/passwd 182 history 183 ps aux 184 ps aux | grep ssh 185 kill -9 1305 186 ps aux | grep ssh 187 ps aux | grep ssh | grep -v grep 188 sleep 30; ps aux | grep ssh | grep -v grep 189 history 190 systemctl cat sshd 191 ps aux | tee psfile | grep ssh 192 cat psfile 193 history 194 exit 195 history 196 ls -l .bash_history 197 env 198 env | grep HIST 199 history 200 history -d 199 201 history 202 env | grep HIST 203 history 204 rpm -qa | grep bash 205 echo a > wirhiwrykubhwiurbuiwguigvhuiwguigbiuwuirbguirwgbiurwgiubgrwuigbiuwgrbiugwriugbuiwgruibgwrueigbieurgbiugwreiugbiwugbgiurw 206 cat wirhiwrykubhwiurbuiwguigvhuiwguigbiuwuirbguirwgbiurwgiubgrwuigbiuwgrbiugwriugbuiwgruibgwrueigbieurgbiugwreiugbiwugbgiurw 207 rm wirhiwrykubhwiurbuiwguigvhuiwguigbiuwuirbguirwgbiurwgiubgrwuigbiuwgrbiugwriugbuiwgruibgwrueigbieurgbiugwreiugbiwugbgiurw 208 userinfo linda 209 nmcli connection show 210 nmcli connection show ens33 211 apt install bash-completion 212 yum install bash-completion 213 countdown 12 214 env 215 MYVAR=hello 216 echo $MYVAR 217 shell 218 bash 219 echo $MYVAR 220 export MYVAR=hello 221 bash 222 vim /etc/profile 223 vim .bash_profile 224 vim .bashrc 225 sander 226 source .bashrc 227 sander 228 sleep 3600 229 jobs 230 bg 231 jobs 232 sleep 1800 & 233 jobs 234 fg 1 235 sleep 3600 236 bg 237 sleep 3600 238 jobs 239 bg 240 top 241 dd if=/dev/zero of=/dev/null & 242 top 243 ps -e -o pid,args --forest | less 244 history -w 245 history 246 ls -l .bash_history 247 env 248 env | grep HIST 249 history 250 history -d 199 251 history 252 env | grep HIST 253 history 254 rpm -qa | grep bash 255 echo a > wirhiwrykubhwiurbuiwguigvhuiwguigbiuwuirbguirwgbiurwgiubgrwuigbiuwgrbiugwriugbuiwgruibgwrueigbieurgbiugwreiugbiwugbgiurw 256 cat wirhiwrykubhwiurbuiwguigvhuiwguigbiuwuirbguirwgbiurwgiubgrwuigbiuwgrbiugwriugbuiwgruibgwrueigbieurgbiugwreiugbiwugbgiurw 257 rm wirhiwrykubhwiurbuiwguigvhuiwguigbiuwuirbguirwgbiurwgiubgrwuigbiuwgrbiugwriugbuiwgruibgwrueigbieurgbiugwreiugbiwugbgiurw 258 userinfo linda 259 nmcli connection show 260 nmcli connection show ens33 261 apt install bash-completion 262 yum install bash-completion 263 countdown 12 264 env 265 MYVAR=hello 266 echo $MYVAR 267 shell 268 bash 269 echo $MYVAR 270 export MYVAR=hello 271 bash 272 vim /etc/profile 273 vim .bash_profile 274 vim .bashrc 275 sander 276 source .bashrc 277 sander 278 sleep 3600 279 jobs 280 bg 281 jobs 282 sleep 1800 & 283 jobs 284 fg 1 285 sleep 3600 286 bg 287 sleep 3600 288 jobs 289 bg 290 top 291 dd if=/dev/zero of=/dev/null & 292 top 293 ps -e -o pid,args --forest | less 294 history -w 295 ps -e -o pid,args --forest | less 296 kill 3169 297 kill -9 3169 298 dd if=/dev/sr0 of=cdrom.iso bs=1M & 299 top 300 ps aux | head 301 DD 302 cd /sys 303 ls 304 cd devices/ 305 ls 306 cd cpu/ 307 ls 308 cd ../.. 309 cd bus/ 310 ls 311 cd cpu/ 312 ;s 313 ls 314 cd devices/ 315 ls 316 pwd 317 tree 318 cd cpu1/ 319 ls 320 cat online 321 lscpu 322 echo 0 > online 323 lscpu 324 pwd 325 history | tail -5 326 top 327 cd 328 dd if=/dev/zero of=/dev/null & 329 top 330 killall dd 331 history 332 countdown 12 333 cd /etc/yum.repos.d/ 334 ls 335 vim CentOS-Base.repo 336 cd 337 yum repolis 338 yum repolist 339 yum search nmap 340 yum install nmap 341 nmap -ns 192.168.4.0/24 342 nmap -sn 192.168.4.0/24 343 nmap 192.168.4.2 344 nmap 192.168.4.157 345 yum groups list 346 yum groups install "Virtualization Host" 347 systemctl status httpd 348 cd /var/log 349 ls -lrt 350 systemctl status httpd 351 history