Unix Which of the following special shell variables is used to process number of the last background job? $# $* $! $0 $# $* $! $0 ANSWER DOWNLOAD EXAMIANS APP
Unix Which command is used to concatenate all files beginning with the string 'emp' and followed by a non-numeric characters? cat emp[!0-9] cat emp[x-z] more [emp][!0-9] cat emp[a-z] cat emp[!0-9] cat emp[x-z] more [emp][!0-9] cat emp[a-z] ANSWER DOWNLOAD EXAMIANS APP
Unix In vi editor, forward search is performed using the command. /pat :pat ?pat All of these /pat :pat ?pat All of these ANSWER DOWNLOAD EXAMIANS APP
Unix Which of the following commands is used to copy a file wb from the programs directory into a file called wbx in the misc directory? tar programs/wb misc/wbx copy a:programs/wb b:misc/wbx cp programs/wb misc/wbx copy programs/wb misc/wbx tar programs/wb misc/wbx copy a:programs/wb b:misc/wbx cp programs/wb misc/wbx copy programs/wb misc/wbx ANSWER DOWNLOAD EXAMIANS APP
Unix Which of the following commands is used to save the output of the who command in a file named user.lst, as well as display it? who < user.lste who >> user.lst who > user.lst who | tee user.lst None of these who < user.lste who >> user.lst who > user.lst who | tee user.lst None of these ANSWER DOWNLOAD EXAMIANS APP
Unix Which command is used to extract specific columns from the file? cat grep paste cut cat grep paste cut ANSWER DOWNLOAD EXAMIANS APP
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