Commands tagged calc sorted by votes

Commands tagged calc (11)

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Define a quick calculator function

defines a handy function for quick calculations from cli. once defined: ? 10*2+3 Show Sample Output
This is sample output - yours may be different.
```
23?
```
58

? () { echo "$*" | bc -l; }

fizz · 2009-06-28 20:15:30 30
Command line calculator

works with fractions like 1/3.5
This is sample output - yours may be different.
4

awk "BEGIN{ print $* }"

maelcum · 2010-10-07 16:13:41 8
Define a quick calculator function

POSIX compliant arithmetic evaluation. = 10*2+3 Show Sample Output
This is sample output - yours may be different.
```
23
```
3

=() { echo $(($*)); }

xlz · 2013-05-03 04:27:07 8
Command line calculator

This function defines a command line calculator that handles everything pythons math module can handle, e.g. trigonometric functions, sqrt, log, erf, ... (see http://docs.python.org/library/math.html). It even knows about the constants pi and e. Show Sample Output
This is sample output - yours may be different.
```
> calc "sin(pi/3.0)**2"
0.75
> calc "log(e)"
1.0
```
1

calc() { python -c "from math import *; print $1"; }

asmaier · 2010-10-07 08:26:39 7
Command line calculator
This is sample output - yours may be different.
1

calc() { bc <<< $*; }

hemanth · 2010-10-07 08:44:28 6
Command line calculator

This opens a python command line. You can use math and random and float-division is enabled (without appending .0 to integers). I just don't know how to specify a standard precision.
This is sample output - yours may be different.
1

python -ic "from __future__ import division; from math import *; from random import *"

fpunktk · 2011-10-24 19:47:27 6
floating point bash calculator w/o precision

terms inclosing '()' must be enclosed by "" (soft quotes) bash variables must be referenced: b $x/$y ugly bracket checking (balanced, fractions...) default precision 2 Show Sample Output
This is sample output - yours may be different.
```
b 6*7 -> 42
b "e(1)" 6 -> 2.718281
a=1; b=1/7; b $a/$b -> 0.14
```
0

b(){ echo "scale=${2:-2}; $1" | bc -l; }

dadi · 2009-12-23 23:44:31 10
floating point shell calculator
This is sample output - yours may be different.
0

calc() { awk 'BEGIN { OFMT="%f"; print '"$*"'; exit}'; }

cfajohnson · 2009-12-25 19:08:16 7
Command line calculator

use python as calculator, press ctrl+d to exit reminder: when doing factions add atleast one decimal number like so 22.0/7 or 22/7.0 Show Sample Output
This is sample output - yours may be different.
```
$ calc
>>> 22.0/7
3.1428571428571428
>>> 22/7.0
3.1428571428571428
>>> 
```
0

alias calc='python -ic "from math import *; from random import *"'

Bonster · 2011-10-24 08:15:41 4
Define a quick calculator function

Same functionality without using bash functions. Show Sample Output
This is sample output - yours may be different.
```
$ ? 3+4/2
5
```
0

alias ?=concalc

boynux · 2014-01-02 01:46:44 10
Command line calculator

This is an "argument calculator" funktion. The precision is set to 4 and you can use dot (.) or comma (,) as decimal mark (which is great for german users with a comma on the numpad).
This is sample output - yours may be different.
-1

calc() { echo "scale=4; ${*//,/.}" | bc -l; }

fpunktk · 2011-10-24 19:58:20 5

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split a file by a specific number of lines

Splits the file "my_file" every 500 lines. Will create files called xx01 xx02 and so on. You can change the prefix by using the -f option. Comes in handy for splitting logfiles for example. I am using it for feeding a logfile parser with smaller files instead of one big file (due to performance reasons)

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Convert seconds to [DD:][HH:]MM:SS

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Which processes are listening on a specific port (e.g. port 80)

swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

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Commands tagged calc (11)

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