theholypumpkin / number_conversions

bash scripts which convert between number bases

Number Conversions

I wanted to get a better understanding of bash. So here are 3 bash scripts which convert between number bases.

hex.sh converts a number from decimal or binary into hexadecimal.

bin.sh converts a number from decimal or hexadecimal into binary.

dec.sh converts a number from binary or hexadecimal into decimal.

float.sh converts your fixt point decimal number into the floating point binary representation in memory. It is using the IEEE 754 Standart to do so. Similar to what this Website is doing but using bash. It outputs both single presicion (i.e a float) and double presicion (i.e a double).

Installation

    git clone https://github.com/theholypumpkin/number_conversions.git
    cd number_conversions
    # link the binary convesion to your applications
    ln <your/current/directory>/bin.sh /home/<your_username>/.local/bin/bin
    # link the hexadecimal convesion to your applications
    ln <your/current/directory>/hex.sh /home/<your_username>/.local/bin/hex
    # link the decimal convesion to your applications folder
    ln <your/current/directory>/dec.sh /home/<your_username>/.local/bin/dec
    # link the decimal convesion to your applications folder
    ln <your/current/directory>/float.sh /home/<your_username>/.local/bin/float

Usage

bin

convert a decimal number $12345$ into binary

    bin 12345
    # Input  Binary
    # 12345  0b11000000111001

convert a hexadecimal number $0xBEEF$ into binary

    bin 0xBEEF
    # Input  Binary
    # 0xBEEF 0b1011111011101111

convert multiple decimal numbers into binary

    bin 1 2 3 4
    # Input  Binary
    # 1      0b1
    # 2      0b10
    # 3      0b11
    # 4      0b100

convert multiple hexadecimal numbers into binary

    bin 0x1 0x2 0x3 0x4
    # Input  Binary
    # 0x1    0b1
    # 0x2    0b10
    # 0x3    0b11
    # 0x4    0b100

mix decimal and hexadecimal

    bin 0x1 2 3 4
    # Input  Binary
    # 0x1    0b1
    # 2      0b10
    # 3      0b11
    # 4      0b100

hex

convert a decimal number $12345$ into hexadecimal

    hex 12345
    # Input  Hexadecimal
    # 12345  0x3039

convert a binary number $0b1011111011101111$ into hexadecimal

    hex 0b1011111011101111
    # Input               Hexadecimal
    # 0b1011111011101111  0xBEEF

convert multiple decimal numbers into hexadecimal

    hex 123 456 789
    # Input  Hexadecimal
    # 123    0x7B
    # 456    0x1C8
    # 789    0x315

convert multiple binary numbers into hexadecimal.

    hex 0b1011111011101111 0b1010
    # Input               Hexadecimal
    # 0b1011111011101111  0xBEEF   
    # 0x1010              0xA             

mix decimal and hexadecimal

    hex 0b1010 123 456
    # Input  Hexadecimal
    # 0b1010 0xA
    # 123    0x7B
    # 456    0x1C8

dec

convert a hexdecimal number $0xBEEF$ into decimal

    dec 0XBEEF
    # Input   Decimal
    # 0XBEEF  48879

convert a binary number $0b1011111011101111$ into decimal

    dec 0b1011111011101111
    # Input               Decimal
    # 0b1011111011101111  48879

convert multiple hexadecimal numbers into decimal

    dec 0xBEEF 0xDEAD 0xCAFE
    # Input   Decimal
    # 0XBEEF  48879
    # 0XDEAD  57005
    # 0XCAFE  51966

convert multiple binary numbers into decimal.

    dec 0b1011 0b1100 0b1101 0b1110 0b1111
    # Input   Decimal
    # 0b1011  11
    # 0b1110  12
    # 0b1101  13
    # 0b1110  14
    # 0b1111  15

mix binary and hexadecimal

    dec 0b1011 0xBEEF
    # Input   Decimal
    # 0b1011  11
    # 0xBEEF  48879

float

convert mutiple fixed point decimal numbers into floating point numbers.

    float 85.125 -85.125
    # Input    Fixed Point          Sign  Exponent (Single)  Manissa
    # 85.125   1010101.0010000000   0     10000101           0101010010000000
    # -85.125  -1010101.0010000000  1     10000101           0101010010000000

    # Input    Fixed Point          Sign  Exponent (Double)  Manissa
    # 85.125   1010101.0010000000   0     10000000101        0101010010000000
    # -85.125  -1010101.0010000000  1     10000000101        0101010010000000

won't fix

• false positives in automatic binary detection in bin and hex
   When you enter a number which starts with $0B$ and than it is followed exclusivly by $0$ and $1$ like, $0B1001001$ it will be interpreteted as binary, even though it could also be a valid hexadecimal number. To avoid it just leave out the leading $0$ like $B1001001$ and you are fine.