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Day 4 Command

The document contains a series of command line entries primarily focused on manipulating and retrieving information from the '/etc/passwd' file and system information using commands like 'cat', 'head', 'tail', 'lscpu', and 'lsblk'. It includes user creation commands and various methods to display specific lines or sections of files. Additionally, it demonstrates the use of 'grep' for searching specific entries in the '/etc/passwd' file.

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ankitbthksyp
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0% found this document useful (0 votes)
28 views6 pages

Day 4 Command

The document contains a series of command line entries primarily focused on manipulating and retrieving information from the '/etc/passwd' file and system information using commands like 'cat', 'head', 'tail', 'lscpu', and 'lsblk'. It includes user creation commands and various methods to display specific lines or sections of files. Additionally, it demonstrates the use of 'grep' for searching specific entries in the '/etc/passwd' file.

Uploaded by

ankitbthksyp
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as TXT, PDF, TXT or read online on Scribd
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142 070620 16:18:04 cat /etc/passwd

143 070620 16:18:04 cat -n /etc/passwd


144 070620 16:18:04 wc /etc/passwd
145 070620 16:18:04 wc -l /etc/passwd
146 070620 16:18:04 wc -w /etc/passwd
147 070620 16:18:04 wc -c /etc/passwd
148 070620 16:18:04 head /etc/passwd
149 070620 16:18:04 tail /etc/passwd
150 070620 16:18:04 useradd user1
151 070620 16:18:04 useradd user2
152 070620 16:18:04 useradd user3
153 070620 16:18:04 useradd user4
154 070620 16:18:04 useradd user5
155 070620 16:18:04 tail /etc/passwd
156 070620 16:18:04 head -n 5 /etc/passwd
157 070620 16:18:04 tail -n 5 /etc/passwd
158 070620 16:18:04 tail -n 5 /etc/passwd > /tmp/user-latest
159 070620 16:18:04 cat /tmp/user-latest
160 070620 16:18:04 head -n 5 /etc/passwd
161 070620 16:18:04 head -5 /etc/passwd
162 070620 16:18:04 cat /tmp/user-latest
163 070620 16:18:04 head -n 1 /etc/passwd
164 070620 16:18:04 tail -n -1 /etc/passwd
165 070620 16:18:04 head -n 1 /etc/passwd > /file-name
166 070620 16:18:04 tail -n -1 /etc/passwd >> /file-name
167 070620 16:18:04 cat /file-name
168 070620 16:18:04 head -n 1 /etc/passwd | tee /user-info
169 070620 16:18:04 tail -n 1 /etc/passwd | tee -a /user-info
170 070620 16:18:04 cat /user-info
171 070620 16:18:04 head -n 15 /etc/passwd
172 070620 16:18:04 tail -11 /etc/passwd
173 070620 16:18:04 cat /etc/passwd | head -n 2
174 070620 16:18:04 cat /etc/passwd | tail -n 5
175 070620 16:18:04 cat -n /etc/passwd | head -n 2
176 070620 16:18:04 cat -n /etc/passwd | tail -n 5
177 070620 16:18:04 cat -n /etc/passwd
178 070620 16:18:04 cat -n /etc/passwd | head -n 15
179 070620 16:18:04 cat -n /etc/passwd | head -n 15 | tail -n 5
180 070620 16:18:04 cat -n /etc/passwd | head -n 15 | tail -n 5 >
/tmp/pass-in
181 070620 16:18:04 cat /tmp/pass-in
182 070620 16:18:04 cat -n /etc/passwd | head -n 30
183 070620 16:18:04 cat -n /etc/passwd | head -n 30 | tail -n 6
184 070620 16:18:04 lscpu
185 070620 16:18:04 lscpu | head -n 1
186 070620 16:18:04 lscpu | cat -n | head -n 1
187 070620 16:18:04 lscpu
188 070620 16:18:04 lscpu | cat -n
189 070620 16:18:04 lscpu | cat -n | head -n 15
190 070620 16:18:04 lscpu | cat -n | head -n 15 | tail -n 5
191 070620 16:18:04 lscpu | cat -n | head -n 15 | tail -n 5 > /tmp/cpu-
info
192 070620 16:18:04 cat /tmp/cpu-info
193 070620 16:18:04 lscpu | cat -n | head -n 13
194 070620 16:18:04 lscpu | cat -n | head -n 13 | tail -n 1
195 070620 16:18:04 lscpu | cat -n | tail -10
196 070620 16:18:04 lscpu | cat -n | tail -13
197 070620 16:18:04 lscpu | cat -n | tail -13 | head -1
198 070620 16:18:04 lscpu | tail -13 | head -1
199 070620 16:18:04 lscpu | cat -n | tail -13 | head -1
200 070620 16:18:04 lsblk
201 070620 16:18:04 lsblk | cat -n
202 070620 16:18:04 lsblk | cat -n | head -n 5
203 070620 16:18:04 lsblk | cat -n | head -n 5 | tail -n 1
204 070620 16:18:04 lsblk | head -n 5 | tail -n 1
205 070620 16:18:04 head -n 5 /etc/passwd
206 070620 16:18:04 lscpu | cat -n | head -n 3
207 070620 16:18:04 lscpu | cat -n | head -n 13
208 070620 16:18:04 lscpu | cat -n | head -n 13 | tail -n 1
209 070620 16:18:04 lsblk
210 070620 16:18:04 lscpu
211 070620 16:18:04 lsblk | head -n 3
212 070620 16:18:04 lscpu | head -n 3
213 070620 16:18:04 lsblk | head -n 3 ; lscpu | head -n 3
214 070620 16:18:04 date ; cal
215 070620 16:18:04 date > /new-file ; cal >> /new-file
216 070620 16:18:04 cat /new-file
217 070620 16:18:04 lsblk | head -n 3 ; lscpu | head -n 3
218 070620 16:18:04 lsblk | head -n 3 > /cpu-info ; lscpu | head -n 3
>> /cpu-info
219 070620 16:18:04 cat /cpu-info
220 070620 16:18:04 lsblk | head -n 3 > /info-1 ; lscpu | head -n 3 >
/info-2
221 070620 16:18:04 cat /info-1
222 070620 16:18:04 cat /info-2
223 070620 16:18:04 ls /
224 070620 16:18:04 ls /var/log
225 070620 16:18:04 cat /var/log/secure
226 070620 16:18:04 tail /var/log/secure
227 070620 16:18:04 tail -f /var/log/secure
228 070620 16:18:04 tail -f /var/log/secure /var/log/messages
229 070620 16:18:04 tailf /var/log/secure
230 070620 16:18:04 tailf /var/log/secure /var/log/messages
231 070620 16:18:04 tail -f15 /var/log/secure
232 070620 16:18:04 tail -f 15 /var/log/secure
233 070620 16:18:04 tail -15 -f /var/log/secure
234 070620 16:18:04 tail -f -15 /var/log/secure
235 070620 16:18:04 tail -f 15 /var/log/secure
236 070620 16:18:04 tail -15f /var/log/secure
237 070620 16:18:04 tail --help
238 070620 16:18:04 sed '1p' /etc/passwd
239 070620 16:18:04 sed -n '1p' /etc/passwd
240 070620 16:18:04 sed -n '3p' /etc/passwd
241 070620 16:18:04 sed -n '1,3p' /etc/passwd
242 070620 16:18:04 sed -n '1,5p' /etc/passwd
243 070620 16:18:04 sed -n '1p;5p' /etc/passwd
244 070620 16:18:04 cat -n /etc/passwd | sed -n '1p'
245 070620 16:18:04 cat -n /etc/passwd | sed -n '5p'
246 070620 16:18:04 cat -n /etc/passwd | sed -n '1,5p'
247 070620 16:18:04 cat -n /etc/passwd | sed -n '1p;5p'
248 070620 16:18:04 cat -n /etc/passwd | sed -n '1,5p;11,15p'
249 070620 16:18:04 cat -n /etc/passwd | sed -n '1p;5p;11p'
250 070620 16:18:04 cat -n /etc/passwd | sed -n '1p'
251 070620 16:18:04 cat -n /etc/passwd | sed -n '$p'
252 070620 16:18:04 cat -n /etc/passwd | sed -n '1p;$p'
253 070620 16:18:04 head -n 1 /etc/passwd
254 070620 16:18:04 tail -n 1 /etc/passwd
255 070620 16:18:04 cat -n /etc/passwd | sed -n '1p;$p'
256 070620 16:18:04 cat -n /etc/passwd | sed -n '1p;$p' > /store
257 070620 16:18:04 cat /store
258 070620 16:18:04 history
259 070620 16:18:04 lscpu
260 070620 16:18:04 lscpu | cat -n | sed -n '13p'
261 070620 16:18:04 lscpu | cat -n | sed -n '1p;13p'
262 070620 16:18:04 head -n 1 /etc/passwd
263 070620 16:18:04 sed -n '1p' /etc/passwd
264 070620 16:18:04 grep root /etc/passwd
265 070620 16:18:04 lsblk
266 070620 16:18:04 lsblk |cat -n
267 070620 16:18:04 lsblk | sed -n '1p;7p'
268 070620 16:18:04 lscpu
269 070620 16:18:04 lscpu | cat -n
270 070620 16:18:04 lscpu | cat -n | sed -n '1p;13;17p'
271 070620 16:18:04 lscpu | cat -n | sed -n '1p;13p;17p'
272 070620 16:18:04 lscpu | cat -n | sed -n '1p;13p;17,$p'
273 070620 16:18:04 lscpu | cat -n | sed -n '1p;13p;17,20p'
274 070620 16:18:04 cat -n /etc/passwd | sed -n '1p;5p;11,15p,21,$p'
275 070620 16:18:04 cat -n /etc/passwd | sed -n '1p;5p;11,15p;21,$p'
276 070620 16:18:04 df -h
277 070620 16:18:04 df -h | cat -n
278 070620 16:18:04 df -h | cat -n | sed -n '7p'
279 070620 16:18:04 df -h | cat -n | head -n 7 | tail -n 1
280 070620 16:18:04 history
281 070620 16:18:04 cat /etc/passwd
282 070620 16:18:04 grep root /etc/passwd
283 070620 16:18:04 grep ftp /etc/passwd
284 070620 16:18:04 grep games /etc/passwd
285 070620 16:18:04 grep -n root /etc/passwd
286 070620 16:18:04 grep -n ftp /etc/passwd
287 070620 16:18:04 grep -n games /etc/passwd
288 070620 16:18:04 grep -n root /etc/passwd
289 070620 16:18:04 grep -c root /etc/passwd
290 070620 16:18:04 grep ROOT /etc/passwd
291 070620 16:18:04 grep -i ROOT /etc/passwd
292 070620 16:18:04 grep -i Root /etc/passwd
293 070620 16:18:04 grep dns /etc/passwd
294 070620 16:18:04 grep -i dns /etc/passwd
295 070620 16:18:04 grep dhcp /etc/passwd
296 070620 16:18:04 grep -i dhcp /etc/passwd
297 070620 16:18:04 grep -n -i root /etc/passwd
298 070620 16:18:04 grep -i -n root /etc/passwd
299 070620 16:18:04 grep -in root /etc/passwd
300 070620 16:18:04 useradd monika
301 070620 16:18:04 userdel -r -f monika
302 070620 16:18:04 useradd monika
303 070620 16:18:04 userdel -rf monika
304 070620 16:18:04 useradd monika
305 070620 16:18:04 grep monika /etc/passwd
306 070620 16:18:04 grep -n monika /etc/passwd
307 070620 16:18:04 grep root /etc/passwd
308 070620 16:18:04 grep -o root /etc/passwd
309 070620 16:18:04 grep -n -i -o root /etc/passwd
310 070620 16:18:04 grep -i -n -o games /etc/passwd
311 070620 16:18:04 grep -o root /etc/passwd
312 070620 16:18:04 grep -o root /etc/passwd > /tmp/string.txt
313 070620 16:18:04 cat /tmp/string.txt
314 070620 16:18:04 grep ftp /etc/passwd
315 070620 16:18:04 grep -n ftp /etc/passwd
316 070620 16:18:04 grep -o ftp /etc/passwd
317 070620 16:18:04 grep -n ftp /etc/passwd
318 070620 16:18:04 grep -A2 -n ftp /etc/passwd
319 070620 16:18:04 grep -A3 -n ftp /etc/passwd
320 070620 16:18:04 grep -B3 -n ftp /etc/passwd
321 070620 16:18:04 grep -C2 -n ftp /etc/passwd
322 070620 16:18:04 grep root /etc/passwd
323 070620 16:18:04 grep -n root /etc/passwd
324 070620 16:18:04 grep -A2 -n root /etc/passwd
325 070620 16:18:04 grep -A2 -n games /etc/passwd
326 070620 16:18:04 grep -C2 -n games /etc/passwd
327 070620 16:18:04 grep root /etc/passwd
328 070620 16:18:04 grep -v root /etc/passwd
329 070620 16:18:04 grep root /etc/passwd | wc -l
330 070620 16:18:04 grep -v root /etc/passwd | wc -l
331 070620 16:18:04 wc -l /etc/passwd
332 070620 16:18:04 grep -c root /etc/passwd
333 070620 16:18:04 grep -c -v root /etc/passwd
334 070620 16:18:04 grep root /etc/passwd
335 070620 16:18:04 grep root /etc/passwd > /tmp/matched
336 070620 16:18:04 grep -v root /etc/passwd > /tmp/un-matched
337 070620 16:18:04 cat /tmp/matched
338 070620 16:18:04 cat /tmp/un-matched
339 070620 16:18:04 grep root /etc/passwd > /tmp/record
340 070620 16:18:04 grep -v root /etc/passwd >> /tmp/record
341 070620 16:18:04 cat /tmp/record
342 070620 16:18:04 cat /tmp/record | grep root
343 070620 16:18:04 useradd manish
344 070620 16:18:04 useradd manisha
345 070620 16:18:04 grep manish /etc/passwd
346 070620 16:18:04 grep -w manish /etc/passwd
347 070620 16:18:04 grep manisha /etc/passwd
348 070620 16:18:04 grep rsync /etc/services
349 070620 16:18:04 grep -w rsync /etc/services
350 070620 16:18:04 grep 873 /etc/services
351 070620 16:18:04 grep -w 873 /etc/services
352 070620 16:18:04 grep -n -i -w 873 /etc/services
353 070620 16:18:04 grep "root" /etc/passwd
354 070620 16:18:04 grep 'root' /etc/passwd
355 070620 16:18:04 grep '^root' /etc/passwd
356 070620 16:18:04 grep '^ftp' /etc/passwd
357 070620 16:18:04 grep ^ftp /etc/passwd
358 070620 16:18:04 grep 'bash$' /etc/passwd
359 070620 16:18:04 grep 'bash$' /etc/passwd | wc -l
360 070620 16:18:04 grep 'nologin$' /etc/passwd | wc -l
361 070620 16:18:04 grep '^root' /etc/passwd | wc -l
362 070620 16:18:04 history
363 070620 16:18:04 useradd natasha
364 070620 16:18:04 grep natasha /etc/passwd
365 070620 16:18:04 usermod -c "hr manager" natasha
366 070620 16:18:04 grep natasha /etc/passwd
367 070620 16:18:04 grep "hr manager" /etc/passwd
368 070620 16:18:04 cat /etc/passwd | grep root
369 070620 16:18:04 cat /etc/passwd | grep -n root
370 070620 16:18:04 cat /etc/passwd | grep -n -i root
371 070620 16:18:04 lscpu | grep -i arch
372 070620 16:18:04 lscpu | grep -i Architecture
373 070620 16:18:04 lscpu | grep -i "model name"
374 070620 16:18:04 lscpu | grep -i "vitualization"
375 070620 16:18:04 lscpu
376 070620 16:18:04 lscpu | grep -i Virtualization
377 070620 16:18:04 lscpu | grep -i VT-x
378 070620 16:18:04 lscpu | grep -i Virtualization
379 070620 16:18:04 lscpu | grep -i Virtualization | head -1
380 070620 16:18:04 lscpu | sed -n '11,15p'
381 070620 16:18:04 lscpu | sed -n '11,15p' | grep -i "model name"
382 070620 16:18:04 cat -n /etc/passwd | sed -n '21,25p'
383 070620 16:18:04 cat -n /etc/passwd | sed -n '21,25p' | grep chrony
384 070620 16:18:04 lslbk
385 070620 16:18:04 lsblk
386 070620 16:18:04 lsblk | grep sda1
387 070620 16:18:04 ls
388 070620 16:18:04 ls | grep -i ana
389 070620 16:18:04 ls /etc
390 070620 16:18:04 ls /etc | grep "yum.conf"
391 070620 16:18:04 ls /etc | grep "yum.repos.d"
392 070620 16:18:04 ls /etc | grep -i "yum.repos.d"
393 070620 16:18:04 grep root ftp ntp games /etc/passwd
394 070620 16:18:04 egrep 'root|ftp|games' /etc/passwd
395 070620 16:18:04 egrep -n -i 'root|ftp|games' /etc/passwd
396 070620 16:18:04 grep -E -n -i 'root|ftp|games' /etc/passwd
397 070620 16:18:04 fgrep root /etc/passwd /etc/group
398 070620 16:18:04 grep -F root /etc/passwd /etc/group
399 070620 16:18:04 grep root /etc/passwd /etc/group
400 070620 16:18:04 grep -F root /etc/passwd /etc/group
401 070620 16:18:04 grep -F 'root|games' /etc/passwd /etc/group
402 070620 16:18:04 grep -E 'root|games' /etc/passwd /etc/group
403 070620 16:18:04 cat /etc/default/useradd
404 070620 16:18:04 grep -i skel /etc/default/useradd
405 070620 16:18:04 grep -i skel /etc/default/
406 070620 16:18:04 grep -R -i skel /etc/default
407 070620 16:18:04 grep -R -n -i skel /etc/default
408 070620 16:18:04 grep -n -i skel /etc/default/*
409 070620 16:18:04 fdisk -l
410 070620 16:18:04 fdisk -l | grep -i sectors
411 070620 16:18:04 fdisk -l | grep -i sda
412 070620 16:18:04 fdisk -l | grep -i -w sda
413 070620 16:18:04 history
414 070620 16:18:04 ls
415 070620 16:18:04 l.
416 070620 16:18:04 ls -a
417 070620 16:18:04 ls
418 070620 16:18:04 touch abc
419 070620 16:18:04 ls
420 070620 16:18:04 ls
421 070620 16:18:04 ls -h
422 070620 16:18:04 ls -l
423 070620 16:18:04 ls -l
424 070620 16:18:04 ll
425 070620 16:18:04 ls -l -h
426 070620 16:18:04 ls -lh
427 070620 16:18:04 touch rajat
428 070620 16:18:04 ls
429 070620 16:18:04 ls -l
430 070620 16:18:04 ls -lrth
431 070620 16:18:04 ls -lrt
432 070620 16:18:04 ls -lrth
433 070620 16:18:04 ls -lth
434 070620 16:18:04 ls -lSrh
435 070620 16:18:04 ls -lSh
436 070620 16:18:04 ls
437 070620 16:18:04 ls -F
438 070620 16:18:04 file abc
439 070620 16:18:04 file /etc
440 070620 16:18:04 file /etc/passwd
441 070620 16:18:04 echo "hello" > abc
442 070620 16:18:04 file abc
443 070620 16:18:04 file /home
444 070620 16:18:04 ls
445 070620 16:18:04 file abc
446 070620 16:18:04 file /etc
447 070620 16:18:04 file /
448 070620 16:18:04 ls /home
449 070620 16:18:04 file /home/krishna
450 070620 16:18:04 ls
451 070620 16:18:04 touch vinit
452 070620 16:18:04 mkdir rajeeb
453 070620 16:18:04 file vinit
454 070620 16:18:04 file rajeeb
455 070620 16:18:04 systemctl reboot
456 070620 16:18:04 init 6
457 070620 16:18:07 reboot
458 070620 16:20:12 poweroff OR init 0 OR systemctl poweroff
459 070620 16:20:15 useradd deepak
460 070620 16:20:40 userdel -r -f deepak
461 070620 16:20:42 useradd deepak
462 070620 16:20:46 userdel -rf deepak
463 070620 16:20:50 useradd deepak
464 070620 16:21:05 userdel -r -f deepak
465 070620 16:21:33 userdel --help
466 070620 16:21:56 grep --help
467 070620 16:22:27 man userdel
468 070620 16:22:47 man grep
469 070620 16:23:38 history
470 070620 16:25:15 man history
471 070620 16:25:22 history --help
472 070620 16:26:50 HISTTIMEFORMAT="%d%m%y %T"

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