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Top Questions
84
votes
What are the alternatives for checking open ports, besides telnet?
linux
networking
curl
telnet
asked Nov 4, 2018 at 10:25
unix.stackexchange.com
51
votes
How do I find the line number in Bash when an error occured?
linux
bash
shell-script
scripting
logs
asked Aug 12, 2018 at 17:18
unix.stackexchange.com
39
votes
How to count the times a specific character appears in a file?
text-processing
asked Aug 22, 2017 at 12:32
unix.stackexchange.com
27
votes
How to verify if iptables is running or the firewall is activated
linux
iptables
rhel-6
asked Sep 14, 2016 at 15:49
superuser.com
25
votes
bash + create unique random numbers
linux
bash
shell-script
random
uuid
asked Feb 14, 2019 at 9:34
unix.stackexchange.com
22
votes
how to replace file extension
bash
shell-script
asked Dec 17, 2018 at 11:23
unix.stackexchange.com
22
votes
renaming a huge folder: is it risky?
linux
filesystems
mv
asked Sep 24, 2017 at 16:56
unix.stackexchange.com
21
votes
How to perform chown and chgrp in one command
linux
command-line
files
chown
chgrp
asked Aug 3, 2017 at 15:49
unix.stackexchange.com
21
votes
how to shift array value in bash
linux
bash
shell-script
awk
array
asked Dec 31, 2017 at 13:28
unix.stackexchange.com
17
votes
Match with grep when pattern contains hyphen "-"
grep
special-characters
asked Aug 28, 2017 at 17:19
unix.stackexchange.com
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Top Answers
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