010-160: LPI Linux Essentials Exam Study Guide with Complete Solutions
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Course
LPI Linux Essentials
Institution
LPI Linux Essentials
010-160: LPI Linux Essentials Exam
Study Guide with Complete Solutions
whereis - Answer-used to search for programs in restricted locations, such as
binary file directories, libraries, and man directories.
locate - Answer-Searches the system managed database of filenames for files
containing t...
exist it will create a blank file with the specified name.
Will update the timestamp of the specified file if it exists. If it does not exist it will not
create a blank file. - Answer✔✔-touch -c file1.txt
Adds the content "Hey there!" to the specified file. - Answer✔✔-echo "Hey there!" >
sample.txt
cat filename.txt - Answer✔✔-Displays the contents of a file
Opens the vi editor for the file "sample". This will allow you to write text into a file. -
Answer✔✔-vi sample
Will display the "sample" file's byte count - Answer✔✔-wc -c sample
Displays the number of characters in the "sample" file - Answer✔✔-wc -m sample
Display the number of lines in the "sample" file - Answer✔✔-wc -l sample
Display the word count of the "sample" file - Answer✔✔-wc -w sample
Extracts the first field of the "/etc/passwd" file - Answer✔✔-cut -f 1 /etc/passwd
Extract the first three characters from the "/etc/passwd" file - Answer✔✔-cut -c 1, 2, 3
/etc/passwd
Extracts the third field from the "/etc/shadow" file and uses the : seperator. Since
"/etc/shadow" is a : (colon) seperated file, this command will display only the content of
the third field in the file. - Answer✔✔-cut -d ":" -f 3 /etc/shadow
Search for all the rows containing the string "/home" in the "/etc/passwd" file -
Answer✔✔-grep /home /etc/passwd
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