Commands using awk (1,418)

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check open ports without netstat or lsof

list all opened ports on host

Random Number Between 1 And X
If X is 5, it will about a number between 1 and 5 inclusive. This works in bash and zsh. If you want between 0 and 4, remove the +1.

Check if your ISP is intercepting DNS queries
It's somewhat common ISPs to intercept DNS queries at port 53 and resolve them at their own. To check if your ISP is intercepting your DNS queries just type this command in the terminal. "#.abc" it's an OK answer. But if you get something like "I am not an OpenDNS resolver.", yep, you are beign cheated by your ISP.

print file without duplicated lines usind awk
show file withou duplicated lines

Recursively remove all files in a CVS directory
This will search all directories and ignore the CVS ones. Then it will search all files in the resulting directories and act on them.

List docker volumes by container

Output files without comments or empty lines
better integration. works on all Unices works one bash and ksh.

a find and replace within text-based files, for batch text replacement, not using perl
Use sed to edit in-place a list of files returned by find.

Encode text in Base64 using Perl
MIME::Base64 is a part of Perl5 distribution. You can also use decode_base64 for oposite result.


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