Question 5 Use awk to find all lines where sudo was evoked a

Question 5: Use awk to find all lines where sudo was evoked and logged in the secure log file (given as q5.txt). Then print them in a nice format as shown in the image below.Write an awk script for it or do it in the command line as:

$ awk \'{ … }\' q5.txt

[ksvrinor@localhost lab05]$ awk \"$ans\" q5.txt

cxavier used sudo on Feb 15 20:19:37 to run command: /bin/bash

kscrivnor used sudo on Feb 16 12:49:30 to run command: /bin/systemctl httpd

expomarker used sudo on Feb 16 12:49:33 to run command: /bin/systemctl status httpd

kscrivnor used sudo on Feb 16 12:49:40 to run command: /bin/systemctl start httpd

kscrivnor used sudo on Feb 22 20:17:46 to run command: /bin/cat secure

kscrivnor used sudo on Feb 22 20:18:44 to run command: /bin/cat secure

crazyuser used sudo on Feb 22 20:19:16 to run command: /bin/bash

[kscrivnor@localhost lab05]$

Solution

since i don\'t know the format of how log is stored in q5.txt

I am assuming the format as

username date command..for eg

crazyuser Feb 22 20:19:16  /bin/bash

kscrivnor Feb 22 20:17:46 sudo /bin/systemctl start httpd etc

awk \'/sudo/ { col = \"\"; for (i = 7; i <= NF; i++) col = col $i \" \"; print $1\" used sudo on \"$2 $3 $4\" to run command : \" $6 \" \" s }\' q5.txt

arguments like $1 , $2 are columns in the file as the default delimiter in space number of words in a line becomes the number of columns .. further $5 is skipped as sudo was not printed.