Linux2 - Quizz 5 -bash scripting
Authored by yuri van der List
Computers
1st - 5th Grade
Used 87+ times
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16 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
How can I print the current system variables?
echo bash
echo $bash
print bash
printf bash
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
How can I input data into a shell script in an neat way?
read -p "Enter your age"
read -p "Enter your age" age
read "Enter your age"
read "Enter your age" age
3.
MULTIPLE SELECT QUESTION
1 min • 1 pt
How can I check if an file is readable?
if [[ -r $file ]]; then
echo "File is not readable"
exit 0
fi
if [[ -d $file ]]; then
echo "File is not readable"
exit 0
fi
4.
MULTIPLE SELECT QUESTION
1 min • 1 pt
How to compare if 2 integers (a = 1, b = 2) are equal?
if [a -eq b]
if [a = b]
if [a isequal b]
if [ b equal a]
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
How can I check if a directory exists ?
path = "/tmp/sound"
if [ -d "$path" ];
if [ -r "$path" ];
if [ -e "$path" ];
if [ -w "$path" ];
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Cron at 16:00 on day-of-month 1 in every month from January through December
00 16 1 1-12 /home/frank/BackUpAll.sh; /home/frank/ScpTarBackup.sh
00 04 1 1-12 /home/frank/BackUpAll.sh; /home/frank/ScpTarBackup.sh
16 00 1 1-12 /home/frank/BackUpAll.sh; /home/frank/ScpTarBackup.sh
16 16 1 1-12 /home/frank/BackUpAll.sh; /home/frank/ScpTarBackup.sh
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
How can I edit a cronjob?
crontab -l
crontab -e
crontab
crontab -m
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