Convert datetime format from DD-MM-YYYY HH:MM to DD/MM/YYYY HH:MM

Question

I want to convert the datetime format from DD-MM-YYYY HH:MM to DD/MM/YYYY HH:MM in bash. The input is taken from an environment variable $INPUT_DATETIME and the output is set to $OUTPUT_DATETIME.

For ex,

    $ export INPUT_DATETIME="01-10-2021 00:05"
    $ echo $OUTPUT_DATETIME
      01/10/2021 00:05

score 2 · Accepted Answer · answered Aug 23 '21 at 09:35

2

You can use command tr in order to change each dash character into a slash.

#!/bin/bash

INPUT_DATETIME="01-10-2021 00:05"
echo $INPUT_DATETIME
OUTPUT_DATETIME= echo "$INPUT_DATETIME" | tr - /
echo $OUTPUT_DATETIME

answered Aug 23 '21 at 09:35

R1D3R175

92
7

If you copy/paste that into http://shellcheck.net it'll tell you about some of the problems with it. – Ed Morton Aug 23 '21 at 14:19

score 2 · Answer 2 · answered Aug 23 '21 at 14:20

2

$ INPUT_DATETIME="01-10-2021 00:05"
$ OUTPUT_DATETIME="${INPUT_DATETIME//-/\/}"
$ echo "$OUTPUT_DATETIME"
01/10/2021 00:05

answered Aug 23 '21 at 14:20

Ed Morton

188,023
17
78
185

Convert datetime format from DD-MM-YYYY HH:MM to DD/MM/YYYY HH:MM

2 Answers2