Which command is used to count just the number of characters in a file?
Which command is used to count just the number of characters in a file?
A. wc – 1
B. wc -c
C. wc -w
D. wc -r
Basic of linux unix
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Which command is used to copy all files having the string chap and any two characters after that to the progs directory ?
Which command is used to copy all files having the string chap and any two characters after that to the progs directory ?A. cp chap?? progs
B. cp chap* progs
C. cp chap[12] /progs/*.*
D. cp chap?? /progs/* -
What command is used to set user and group quotas ?
What command is used to set user and group quotas ?A. /sbin/usrquota
B. /sbin/edquota
C. /sbin/quotaon
D. /sbin/quota -
What command is used to assign executable permission to the owner of the file named “letter” ?
What command is used to assign executable permission to the owner of the file named “letter” ?A. chmod ugo + x letter
B. chmod u + x letter
C. chmod u + w letter
D. chmod g + x letter -
Which of the following subdirectory(ies) contains the device files ?
Which of the following subdirectory(ies) contains the device files ?A. /dev
B. /bin
C. /etc
D. /home -
Which command is used to change protection mode of files starting with the string emp and ending with 1,2, or 3 ?
Which command is used to change protection mode of files starting with the string emp and ending with 1,2, or 3 ?A. chmod u+x emp[1-3]
B. chmod 777 emp*
C. chmod u+r ??? emp
D. chmod 222 emp? -
How many class A, B and C network IDs can exist ?
How many class A, B and C network IDs can exist ?A. 128
B. 126
C. 16382
D. 2113658 -
What command is used to compare the files ?
What command is used to compare the files ?A. ccp
B. du
C. cmp
D. comp -
What file contains the list of port numbers (and associated names) monitored by inetd ?
What file contains the list of port numbers (and associated names) monitored by inetd ?A. /etc/services
B. /etc/nsorder
C. /etc/nsswitch.conf/
D. /etc/hosts -
Which command is used with vi editor scroll half page backward ?
Which command is used with vi editor scroll half page backward ?A. [Control-d]
B. [Control – u]
C. [Control-c]
D. [Control -P]