Top Forums UNIX for Beginners Questions & Answers How to get first & last day of a month from current date? Post 303041726 by Rocky975583 on Monday 2nd of December 2019 03:50:51 PM
How to get first & last day of a month from current date?

Hi, I need the first & last day of a month from any given date. For better understanding, if i need to back-fill data for date 07/20/2019 i.e July 20 2019, i need the first & last day has 07/01/2019 - 07/31/2019. FYI: I'm using GIT BASH terminal.

sample code:

export DT=$(date --date='6 days ago' +%F) -> is current date for which i have data for (i.e 2019-11-26).

how do i use this DT var in order to get the first & last day of any month?

I appreciate your help for this task!!!

Moderator's Comments:
Mod Comment Please do wrap your samples/codes in CODE TAGS as per forum rules.

Last edited by RavinderSingh13; 1 Week Ago at 10:51 PM..
 
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libexslt(4)						     Kernel Interfaces Manual						       libexslt(4)

NAME
libexslt - extension library for XSLT DESCRIPTION
The libexslt library is used to provide extensions to XSLT functions. These extensions come from the EXSLT project (http://www.exslt.org/) CALLING
To make use of these functions XSLT, these need to be declared with the proper name space SUPPORTED FUNCTIONS
COMMON Namespace: http://exslt.org/common node-set() convert the given RTF into a node-set object-type() returns the type of the given argument document() Create multiple output documents. See http://www.exslt.org/exsl/elements/document/index.html MATH Namespace: http://exslt/math For a description see http://www.exslt.org/math/index.html min() returns the minimum value of the given node-set max() returns the maximum value of the given node-set highest() returns the nodes in the node-set whose value is the maximum value for the node-set. lowest() returns the nodes in the node-set whose value is the minimum value for the node-set. constant() returns a number value of the given constant with the given precision. The constants are PI, E, SQRRT2, LN2, LN10, LOG2E, and SQRT1_2. random() returns a random number between 0 and 1 inclusive. abs() returns the absolute value of the argument. sqrt() returns the square root of the argument. power() returns the power base and power arguments. log() returns the natural log of the argument. sin() returns the sine of the argument. cos() returns the cosine of the argument. tan() returns the tangent of the argument. asin() returns the arc sine of the argument. acos() returns the arc cosine of the argument. atan() returns the arc tangent of the argument. atan2() returns the arc tangent function of the y/x arguments. exp() returns the exponential function of the argument. SETS Namespace http://exslt.org/sets For a description see http://www.exslt.org/set/index.html difference() returns the difference between the two given node-sets. intersection() returns a node-set of the nodes within both given node-sets. distinct() returns a node-set of all nodes in the first argument that are not in the seconds argument. has-same-node() returns TRUE if there is an intersection between the two given node-sets. leading() returns a node-set of all nodes in the first argument that precede the first node in the second argument. trailing() returns a node-set of all nodes in the first argument that follow the first node in the second argument. DATES and TIMES Namespace http://exslt.org/date-and-times For a description see http://www.exslt.org/date/date.html date-time() returns the current date and time as a date/time string. date() returns the date specified in the given date/time string. time() returns the time specified in the date/time string given as the argument. year() returns the year of a date as a number. leap-year() returns true if the year given in a date is a leap year. month-in-year() returns the month of a date as a number. month-name() returns the full name of the month of a date. month-abbreviation() returns the abbreviation of the month of a date. week-in-year() returns the week of the year as a number. week-in-month() returns the week in a month of a date as a number. day-in-year() returns the month of a date as a number. day-in-month() returns the day of a date as a number. day-in-week-in-month() returns the day-of-the-week in a month of a date as a number. day-in-week() returns the day of the week given in a date as a number. day-name() returns the full name of the day of the week of a date. day-abbreviation() returns the abbreviation of the day of the week of a date. hour-in-day() returns the hour of the day as a number. minute-in-hour() returns the minute of the hour as a number. second-in-minute() returns the second of the minute as a number. seconds() returns the number of seconds specified by the argument string. add() returns the date/time resulting from adding a duration to a date/time. add-duration() returns the duration resulting from adding two given durations together. difference() returns the duration between the first date and the second date. duration() returns a duration string that represents the given number of seconds since 1970-01-01T00:00:00. STRINGS Namespace http://exslt.org/strings For a description see http://www.exslt.org/str/index.html tokenize() returns a node set of token elements, each containing one token from the string. padding() returns a string padded to a certain length. align() returns a string aligned within another string. concat() returns the concatenation of the string values of the nodes in that node set. FUNCTIONS Namespace http://exslt.org/functions For a description see http://www.exslt.org/func/index.html function() declares an extension function. result() returns the result of an extension function declared in function(). FILES /usr/lib/libexslt.a static library /usr/lib/libexslt.so sharable library AUTHORS
Manual page by Heiko W. Rupp (hwr@pilhuhn.de) SEE ALSO
libxslt(3), libxml(3), xsltproc(1), xmllint(1) 15 May 2002 libexslt(4)

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