Commands tagged one line (3)

  • This one line Perl script will display the smallest to the largest files sizes in all directories on a server. Show Sample Output


    1
    du -k | sort -n | perl -ne 'if ( /^(\d+)\s+(.*$)/){$l=log($1+.1);$m=int($l/log(1024)); printf ("%6.1f\t%s\t%25s %s\n",($1/(2**(10*$m))),(("K","M","G","T","P")[$m]),"*"x (1.5*$l),$2);}' | more
    Q_Element · 2012-02-07 15:49:19 0
  • Here's how to serve a directory in one line of Ruby. Handy for sharing files at a conference, for example.


    1
    ruby -rwebrick -e'WEBrick::HTTPServer.new(:Port => 3000, :DocumentRoot => Dir.pwd).start'
    boylah · 2013-08-20 10:19:27 0
  • in this examp start htop command in tmux session over the shell cosole and set title for the tmux without doing it manuelly in tmux


    1
    tmux new-session -d -s "SessionName" "htop"
    aysadk · 2019-06-14 12:44:33 0

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find an unused unprivileged TCP port
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useless load
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Jump to a directory, execute a command and jump back to current dir

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Shorter and faster...

Get AWS temporary credentials ready to export based on a MFA virtual appliance
You might want to secure your AWS operations requiring to use a MFA token. But then to use API or tools, you need to pass credentials generated with a MFA token. This commands asks you for the MFA code and retrieves these credentials using AWS Cli. To print the exports, you can use: `awk '{ print "export AWS_ACCESS_KEY_ID=\"" $1 "\"\n" "export AWS_SECRET_ACCESS_KEY=\"" $2 "\"\n" "export AWS_SESSION_TOKEN=\"" $3 "\"" }'` You must adapt the command line to include: * $MFA_IDis ARN of the virtual MFA or serial number of the physical one * TTL for the credentials

Null a file with sudo


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