WebDec 15, 2024 · For large numbers you might want to use the exponentiation operator of the external command bc as: bash:$ echo 2^100 bc 1267650600228229401496703205376 If you want to store the above result in a variable you can use command substitution either via the $ () syntax: var=$ (echo 2^100 bc) or the older backtick syntax: var=`echo 2^100 bc` WebMar 6, 2024 · Bash itself is able to do simple integer arithmetic. When a little more capability is required, two command-line tools, bc and awk, are capable of doing many types of calculations. There are at least three …
Doing Date Math on the Command Line, Part I Linux Journal
WebNov 9, 2024 · Bash script supports 11 arithmetic operators. All the operators with their uses is given below: Let’s see the examples for the uses of arithmetic operators: Addition … WebApr 14, 2024 · The preferable way to do math in Bash is to use shell arithmetic expansion. The built-in capability evaluates math expressions and returns the result. The syntax for arithmetic expansions is: $ ( (expression)) The syntax consists of: Compound … entityduplicatedexception
Urban Dictionary: do the math
WebOct 21, 2024 · Bash does not do floating point math. You can use awk or bc to handle this. Here is an awk example: $ m=34; awk -v m=$m 'BEGIN { print 1 - ( (m - 20) / 34) }' 0.588235 To assign the output to a variable: var=$ (awk -v m=$m 'BEGIN { print 1 - ( (m - 20) / 34) }') Share Improve this answer Follow answered Aug 27, 2012 at 18:06 jordanm 32.3k 7 62 76 WebMar 31, 2010 · bash has a couple of extensions, which only handle integers as well: $ ( (3+3)) returns 6 ( (3+3)) used in conditionals, returns 0 for true (non-zero) and 1 for false let 3+3 same as ( ( )) let and ( ( )) can be used to assign values, e.g. let a=3+3 ( (a=3+3)) for floating point you can use bc echo 3+3 bc Share Improve this answer Follow WebAug 21, 2024 · It is similar to basic calculator by using which we can do basic mathematical calculations. Arithmetic operations are the most basic in any kind of programming language. Linux or Unix operating system provides the bc command and expr command for doing arithmetic calculations. dr hearon tamuk