Linux Essentials Certificate Exam, version 1.5 (010-150) - Linux Professional Institute Actual Exam Questions
Last updated on April 30, 2026
Why is the file data.txt empty after executing sort data.txt > data.txt?
Because, if data.txt is empty now, it must have been empty before.
Because sort cannot sort text files, only binary files.
Because sort detects that both files are the same.
Because the file gets truncated before sort is executed.
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What is the output of the following command? for token in a b c; do echo -n ${token}; done
anbncn
abc
$token$token$token
{a}{b}{c}
a b c
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Which command lists all files in the current directory that start with a capital letter?
ls [A-Z]*
ls A-Z
ls A-Z*
ls --uppercasefiles
list-uppercase-files
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What is the command that will show system boot time messages?
dmesg
echo
lspci
display system boot
messages
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What keyword is missing from the following segment of the shell script? for i in *; _____ cat $i done
do
then
enod
fi
run
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