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Answer score of 100 or more. This badge can be awarded multiple times.

earned this badge 17 times.
How do I check if a variable exists in an 'if' statement?
Awarded Jan 11 at 21:55
watch command alias expansion
Awarded Nov 22 '19 at 0:50
Prepending a timestamp to each line of output from a command
Awarded Aug 20 '19 at 10:35
Make cd follow symbolic links
Awarded Jun 3 '19 at 21:00
In CentOS, what is the difference between yum update and yum upgrade?
Awarded Mar 10 '19 at 7:25
Find duplicate files
Awarded Dec 24 '18 at 19:30
What is the difference between “sort -u” and “sort | uniq”?
Awarded Nov 5 '18 at 23:20
How to use wildcards (*) when copying with scp?
Awarded Sep 13 '18 at 9:50
How to rsync only new files
Awarded Sep 27 '17 at 19:45
How to check if a shell is login/interactive/batch
Awarded Aug 2 '17 at 5:19
How do I determine the number of RAM slots in use?
Awarded May 20 '17 at 5:48
Day of week {0-7} in crontab has 8 options, but we have only 7 days in a week
Awarded Nov 1 '16 at 3:08
Finding the PID of the process using a specific port?
Awarded Oct 11 '16 at 22:36
How can I resolve a hostname to an IP address in a Bash script?
Awarded Jun 15 '15 at 15:18
Execute vs Read bit. How do directory permissions in Linux work?
Awarded Feb 3 '15 at 22:03
What does env x='() { :;}; command' bash do and why is it insecure?
Awarded Sep 27 '14 at 17:21
Why is “echo” so much faster than “touch”?
Awarded Apr 12 '14 at 14:22

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