cmd11

math
• echo '(1 + sqrt(5))/2' | bc -l Quick math (Calculate φ). See also bc
• echo 'pad=20; min=64; (100*10^6)/((pad+min)*8)' | bc More complex (int) e.g. This shows max FastE packet rate
• echo 'pad=20; min=64; print (100E6)/((pad+min)*8)' | python Python handles scientific notation
• echo 'pad=20; plot [64:1518] (100*10**6)/((pad+x)*8)' | gnuplot -persist Plot FastE packet rate vs packet size
• echo 'obase=16; ibase=10; 64206' | bc Base conversion (decimal to hexadecimal)
• echo $((0x2dec)) Base conversion (hex to dec) ((shell arithmetic expansion))
• units -t '100m/9.74s' 'miles/hour' Unit conversion (metric to imperial)
• units -t '500GB' 'GiB' Unit conversion (SI to IEC prefixes)
• units -t '1 googol' Definition lookup
• seq 100 | (tr '\n' +; echo 0) | bc Add a column of numbers. See also add and funcpy