Date

Functions for manipulating dates.

Table of Contents

date::now()

Get current time in unix timestamp.

Function has no arguments.

Exit codes

  • 0: If successful.
  • 1: If unable to generate timestamp.

Output on stdout

  • current timestamp.

Example

echo "$(date::now)"
#Output
1591554426

date::epoc()

convert datetime string to unix timestamp.

Arguments

  • $1 (string): date time in any format.

Exit codes

  • 0: If successful.
  • 1: If unable to generate timestamp.
  • 2: Function missing arguments.

Output on stdout

  • timestamp for specified datetime.

Example

echo "$(date::epoc "2020-07-07 18:38")"
#Output
1594143480

date::add_days_from()

Add number of days from specified timestamp. If number of days not specified then it defaults to 1 day.

Arguments

  • $1 (int): unix timestamp.
  • $2 (int): number of days (optional).

Exit codes

  • 0: If successful.
  • 1: If unable to generate timestamp.
  • 2: Function missing arguments.

Output on stdout

  • timestamp.

Example

echo "$(date::add_days_from "1594143480")"
#Output
1594229880

date::add_months_from()

Add number of months from specified timestamp. If number of months not specified then it defaults to 1 month.

Arguments

  • $1 (int): unix timestamp.
  • $2 (int): number of months (optional).

Exit codes

  • 0: If successful.
  • 1: If unable to generate timestamp.
  • 2: Function missing arguments.

Output on stdout

  • timestamp.

Example

echo "$(date::add_months_from "1594143480")"
#Output
1596821880

date::add_years_from()

Add number of years from specified timestamp. If number of years not specified then it defaults to 1 year.

Arguments

  • $1 (int): unix timestamp.
  • $2 (int): number of years (optional).

Exit codes

  • 0: If successful.
  • 1: If unable to generate timestamp.
  • 2: Function missing arguments.

Output on stdout

  • timestamp.

Example

echo "$(date::add_years_from "1594143480")"
#Output
1625679480

date::add_weeks_from()

Add number of weeks from specified timestamp. If number of weeks not specified then it defaults to 1 week.

Arguments

  • $1 (int): unix timestamp.
  • $2 (int): number of weeks (optional).

Exit codes

  • 0: If successful.
  • 1: If unable to generate timestamp.
  • 2: Function missing arguments.

Output on stdout

  • timestamp.

Example

echo "$(date::add_weeks_from "1594143480")"
#Output
1594748280

date::add_hours_from()

Add number of hours from specified timestamp. If number of hours not specified then it defaults to 1 hour.

Arguments

  • $1 (int): unix timestamp.
  • $2 (int): number of hours (optional).

Exit codes

  • 0: If successful.
  • 1: If unable to generate timestamp.
  • 2: Function missing arguments.

Output on stdout

  • timestamp.

Example

echo "$(date::add_hours_from "1594143480")"
#Output
1594147080

date::add_minutes_from()

Add number of minutes from specified timestamp. If number of minutes not specified then it defaults to 1 minute.

Arguments

  • $1 (int): unix timestamp.
  • $2 (int): number of minutes (optional).

Exit codes

  • 0: If successful.
  • 1: If unable to generate timestamp.
  • 2: Function missing arguments.

Output on stdout

  • timestamp.

Example

echo "$(date::add_minutes_from "1594143480")"
#Output
1594143540

date::add_seconds_from()

Add number of seconds from specified timestamp. If number of seconds not specified then it defaults to 1 second.

Arguments

  • $1 (int): unix timestamp.
  • $2 (int): number of seconds (optional).

Exit codes

  • 0: If successful.
  • 1: If unable to generate timestamp.
  • 2: Function missing arguments.

Output on stdout

  • timestamp.

Example

echo "$(date::add_seconds_from "1594143480")"
#Output
1594143481

date::add_days()

Add number of days from current day timestamp. If number of days not specified then it defaults to 1 day.

Arguments

  • $1 (int): number of days (optional).

Exit codes

  • 0: If successful.
  • 1: If unable to generate timestamp.

Output on stdout

  • timestamp.

Example

echo "$(date::add_days "1")"
#Output
1591640826

date::add_months()

Add number of months from current day timestamp. If number of months not specified then it defaults to 1 month.

Arguments

  • $1 (int): number of months (optional).

Exit codes

  • 0: If successful.
  • 1: If unable to generate timestamp.

Output on stdout

  • timestamp.

Example

echo "$(date::add_months "1")"
#Output
1594146426

date::add_years()

Add number of years from current day timestamp. If number of years not specified then it defaults to 1 year.

Arguments

  • $1 (int): number of years (optional).

Exit codes

  • 0: If successful.
  • 1: If unable to generate timestamp.

Output on stdout

  • timestamp.

Example

echo "$(date::add_years "1")"
#Output
1623090426

date::add_weeks()

Add number of weeks from current day timestamp. If number of weeks not specified then it defaults to 1 year.

Arguments

  • $1 (int): number of weeks (optional).

Exit codes

  • 0: If successful.
  • 1: If unable to generate timestamp.

Output on stdout

  • timestamp.

Example

echo "$(date::add_weeks "1")"
#Output
1592159226

date::add_hours()

Add number of hours from current day timestamp. If number of hours not specified then it defaults to 1 hour.

Arguments

  • $1 (int): number of hours (optional).

Exit codes

  • 0: If successful.
  • 1: If unable to generate timestamp.

Output on stdout

  • timestamp.

Example

echo "$(date::add_hours "1")"
#Output
1591558026

date::add_minutes()

Add number of minutes from current day timestamp. If number of minutes not specified then it defaults to 1 minute.

Arguments

  • $2 (int): number of minutes (optional).

Exit codes

  • 0: If successful.
  • 1: If unable to generate timestamp.

Output on stdout

  • timestamp.

Example

echo "$(date::add_minutes "1")"
#Output
1591554486

date::add_seconds()

Add number of seconds from current day timestamp. If number of seconds not specified then it defaults to 1 second.

Arguments

  • $2 (int): number of seconds (optional).

Exit codes

  • 0: If successful.
  • 1: If unable to generate timestamp.

Output on stdout

  • timestamp.

Example

echo "$(date::add_seconds "1")"
#Output
1591554427

date::sub_days_from()

Subtract number of days from specified timestamp. If number of days not specified then it defaults to 1 day.

Arguments

  • $1 (int): unix timestamp.
  • $2 (int): number of days (optional).

Exit codes

  • 0: If successful.
  • 1: If unable to generate timestamp.
  • 2: Function missing arguments.

Output on stdout

  • timestamp.

Example

echo "$(date::sub_days_from "1594143480")"
#Output
1594057080

date::sub_months_from()

Subtract number of months from specified timestamp. If number of months not specified then it defaults to 1 month.

Arguments

  • $1 (int): unix timestamp.
  • $2 (int): number of months (optional).

Exit codes

  • 0: If successful.
  • 1: If unable to generate timestamp.
  • 2: Function missing arguments.

Output on stdout

  • timestamp.

Example

echo "$(date::sub_months_from "1594143480")"
#Output
1591551480

date::sub_years_from()

Subtract number of years from specified timestamp. If number of years not specified then it defaults to 1 year.

Arguments

  • $1 (int): unix timestamp.
  • $2 (int): number of years (optional).

Exit codes

  • 0: If successful.
  • 1: If unable to generate timestamp.
  • 2: Function missing arguments.

Output on stdout

  • timestamp.

Example

echo "$(date::sub_years_from "1594143480")"
#Output
1562521080

date::sub_weeks_from()

Subtract number of weeks from specified timestamp. If number of weeks not specified then it defaults to 1 week.

Arguments

  • $1 (int): unix timestamp.
  • $2 (int): number of weeks (optional).

Exit codes

  • 0: If successful.
  • 1: If unable to generate timestamp.
  • 2: Function missing arguments.

Output on stdout

  • timestamp.

Example

echo "$(date::sub_weeks_from "1594143480")"
#Output
1593538680

date::sub_hours_from()

Subtract number of hours from specified timestamp. If number of hours not specified then it defaults to 1 hour.

Arguments

  • $1 (int): unix timestamp.
  • $2 (int): number of hours (optional).

Exit codes

  • 0: If successful.
  • 1: If unable to generate timestamp.
  • 2: Function missing arguments.

Output on stdout

  • timestamp.

Example

echo "$(date::sub_hours_from "1594143480")"
#Output
1594139880

date::sub_minutes_from()

Subtract number of minutes from specified timestamp. If number of minutes not specified then it defaults to 1 minute.

Arguments

  • $1 (int): unix timestamp.
  • $2 (int): number of minutes (optional).

Exit codes

  • 0: If successful.
  • 1: If unable to generate timestamp.
  • 2: Function missing arguments.

Output on stdout

  • timestamp.

Example

echo "$(date::sub_minutes_from "1594143480")"
#Output
1594143420

date::sub_seconds_from()

Subtract number of seconds from specified timestamp. If number of seconds not specified then it defaults to 1 second.

Arguments

  • $1 (int): unix timestamp.
  • $2 (int): number of seconds (optional).

Exit codes

  • 0: If successful.
  • 1: If unable to generate timestamp.
  • 2: Function missing arguments.

Output on stdout

  • timestamp.

Example

echo "$(date::sub_seconds_from "1594143480")"
#Output
1594143479

date::sub_days()

Subtract number of days from current day timestamp. If number of days not specified then it defaults to 1 day.

Arguments

  • $1 (int): number of days (optional).

Exit codes

  • 0: If successful.
  • 1: If unable to generate timestamp.

Output on stdout

  • timestamp.

Example

echo "$(date::sub_days "1")"
#Output
1588876026

date::sub_months()

Subtract number of months from current day timestamp. If number of months not specified then it defaults to 1 month.

Arguments

  • $1 (int): number of months (optional).

Exit codes

  • 0: If successful.
  • 1: If unable to generate timestamp.

Output on stdout

  • timestamp.

Example

echo "$(date::sub_months "1")"
#Output
1559932026

date::sub_years()

Subtract number of years from current day timestamp. If number of years not specified then it defaults to 1 year.

Arguments

  • $1 (int): number of years (optional).

Exit codes

  • 0: If successful.
  • 1: If unable to generate timestamp.

Output on stdout

  • timestamp.

Example

echo "$(date::sub_years "1")"
#Output
1591468026

date::sub_weeks()

Subtract number of weeks from current day timestamp. If number of weeks not specified then it defaults to 1 week.

Arguments

  • $1 (int): number of weeks (optional).

Exit codes

  • 0: If successful.
  • 1: If unable to generate timestamp.

Output on stdout

  • timestamp.

Example

echo "$(date::sub_weeks "1")"
#Output
1590949626

date::sub_hours()

Subtract number of hours from current day timestamp. If number of hours not specified then it defaults to 1 hour.

Arguments

  • $1 (int): number of hours (optional).

Exit codes

  • 0: If successful.
  • 1: If unable to generate timestamp.

Output on stdout

  • timestamp.

Example

echo "$(date::sub_hours "1")"
#Output
1591550826

date::sub_minutes()

Subtract number of minutes from current day timestamp. If number of minutes not specified then it defaults to 1 minute.

Arguments

  • $1 (int): number of minutes (optional).

Exit codes

  • 0: If successful.
  • 1: If unable to generate timestamp.

Output on stdout

  • timestamp.

Example

echo "$(date::sub_minutes "1")"
#Output
1591554366

date::sub_seconds()

Subtract number of seconds from current day timestamp. If number of seconds not specified then it defaults to 1 second.

Arguments

  • $1 (int): number of seconds (optional).

Exit codes

  • 0: If successful.
  • 1: If unable to generate timestamp.

Output on stdout

  • timestamp.

Example

echo "$(date::sub_seconds "1")"
#Output
1591554425

date::format()

Format unix timestamp to human readable format. If format string is not specified then it defaults to “yyyy-mm-dd hh:mm:ss” format.

Arguments

  • $1 (int): unix timestamp.
  • $2 (string): format control characters based on date command (optional).

Exit codes

  • 0: If successful.
  • 1: If unable to generate time string.
  • 2: Function missing arguments.

Output on stdout

  • formatted time string.

Example

echo echo "$(date::format "1594143480")"
#Output
2020-07-07 18:38:00