Saturday, January 11, 2020

File Processing Commands

What UID and PID have the highest amount of physical memory a process has used and is not swapped out? Show all processes and full output. †¢ top press f press d press p You'll will find cpu usage in descending order for all processes. †¢If using a long listing and no process modifiers, what is the swap space amount for the bash command? †¢ top -p pidof_bash After typing the above command press A (Capital a). You will see the below output. 1 PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 2021 xyz 20 0 XXXXX XXXX 1664 S 0 0. 2 0:00. 43 bash PID PPID TIME+ %CPU %MEM PR NI S VIRT SWAP RES UID COMMAND 2021 2019 0:00. 43 0 0. 2 20 0 S 22132 16m 4952 1000 bash 3 PID %MEM VIRT SWAP RES CODE DATA SHR nFLT nDRT S PR NI %CPU COMMAND 2021 0. 2 22132 16m 4952 XXX XXXX X664 1 0 S 20 0 0 bash4 PID PPID UID USER RUSER TTY TIME+ %CPU %MEM S COMMAND 2021 2019 1000 xyz xyz pts/0 0:00. 43 0 0. 2 S bash Above you can see the swap space. You can also try top -p pidofbash press f pre ss p press enter You'll see the swap space too. †¢When using top command, what command would you use to kill a process? †¢ Press k to kill a process If you were not using top command, what command would you use to kill a process? kill processid killall processname †¢What command would you use to manually mount the standard CD-ROM device /dev/db1 at /media/disk? mount /dev/db1 /media/disk †¢What command would you use to display the amount of available disk space on /dev/db1 in a human readable form? df -h /dev/db1 †¢Type in the command grep – – help to access the help manual. Using this information and the information from the text, how would you write a command to find the pattern 111 in a file called myfile. txt? grep -irna â€Å"111† myfile. txt

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