TLDR
Chọn một phiên bản client bạn muốn rồi cài nó lên máy.
Cách dùng:
$ tr bc
Calculator.
Run calculator in interactive mode using the standard math library:
bc -l
Calculate the result of an expression:
bc <<< "(1 + 2) * 2 ^ 2"
Calculate expression and force number of decimal places to 10:
bc <<< "scale=10; 5 / 3"
Calculate expression with sine and cosine using mathlib:
bc -l <<< "s(1) + c(1)"
CHEAT.SH
Tạo script /usr/bin/cheat và cấp quyền thực thi:
$ sudo vi /usr/bin/cheat
#!/bin/sh
curl cheat.sh/$1
$ sudo chmod +x /usr/bin/cheat
Cách dùng:
$ cheat bc
# bc
# Calculator.
# Run calculator in interactive mode using the standard math library:
bc -l
# Calculate the result of an expression:
bc <<< "(1 + 2) * 2 ^ 2"
# Calculate expression and force number of decimal places to 10:
bc <<< "scale=10; 5 / 3"
# Calculate expression with sine and cosine using mathlib:
bc -l <<< "s(1) + c(1)"