System Commands · Quiz 1 · Jan 2024

Ajit is writing an essay in English. He realizes that he has used both the American English and British English spellings for the same words in his essay. He wants to find all such occurrences for the words "color/colour" and "program/programme". Help him by selecting the correct regular expression which will capture the British version as well as American version of the words from the text. Make sure It only collects the words which has correct spellings in either of the format. Note: It is an Extended Regular Expression (ERE)

For a log file 'file.txt' the user wants to change the permissions such that he gives read, write, and execute to the owner; read and execute to the group and others. which of the following commands will accomplish the same?

$ sleep 200 & $ ps PID TTY TIME CMD 1@ pts/® 60:00:02 bash 344 pts/0 00:00:00 sleep 345 pts/0 00:00:00 ps Select the command(s) from the options below which will suspend the sleep process started as shown in the above code block. $ man kill KILL(1) User Commands KILL(1) NAME kill - send a signal to a process SYNOPSIS kill [options] <pid> [...] DESCRIPTION The default signal for kill is TERM. Use -1 or -L to list available signals. Particularly useful signals include HUP, INT, KILL, STOP, CONT, and ®. Alter- nate signals may be specified in three ways: -9, -SIGKILL or - KILL. Negative PID values may be used to choose whole process groups; see the PGID column in ps command output. A PID of -1 is special; it indicates all processes except the kill process itself and init. OPTIONS <pid> [...] Send signal to every <pid> listed.

Following bash script is run to find if a given file has a 'txt' extension. Which of the following option(s) will achieve the same?

How many soft links are present in the list?

Assume that each directory has 2 hard links (one for the current working directory and another from its parent directory) and a link each for the sub-directory's parent directory. How many subdirectories are present in the current working directory?

From the given information, which of the following types are present in the list?