Why org mode is good?

Tables fc

position ease box interval due
front 2.20 3 6.00 2021-09-06T07:56:14Z

ref note: ¦ is broken pipe used as a replacement of | to escape it.

create column ¦¦
create table with predefined columns `C-c ¦`
create new row <TAB> from last row
visit each column S-<TAB> or <TAB>
, or any seperated region into table select region and C-c ¦
force separator:, TAB and 3 spaces C-u or C-u C-u or C-u 3 C-c ¦
change column order M-<right> or M-<left>
change row order M-<up> or M-<down>
inserting/deleting row/column S-M-<down> or <right>
add more lines to the table C-c ~
edit table C-c '

Useful shortcuts

  1. C-c C-x p: set properties
  2. C-c -: Insert separator line in table or modify bullet status of line.

Formatting

You can make words

  1. ‘*bold*’
  2. ‘/italic/’,
  3. ‘_underlined_’,
  4. ‘=verbatim=’ and
  5. ‘~code~’, and,
  6. ‘+strike-through+’

Literate Programming

UML diagrams with plantuml

Sequence diagram

Python

print("Welcome")

Welcome

with virtualenv

(pyvenv-workon "tawakkalna_env")

echo $VIRTUAL_ENV
which python

import sys
print('\n'.join(sys.path))

`org-store-link` then `org-insert-link` ref

Tags

Difference between “tag” and “filetags”

# example of tag
\* Meeting with the French group      :work:
\** Summary by Frank                  :boss:notes:
\*** TODO Prepare slides for him      :action:
# the final heading has the tags ‘work’, ‘boss’, ‘notes’, and ‘action’ even though the final heading is not explicitly marked with those tags.

# example of file tag, exists on top of a file
#+FILETAGS: :Peter:Boss:Secret:
*Filetags are inherited by all the nodes inside a file as they are set at hypothetical level 0.*

Tag inheritance

A tag applied to a node is inherited by all the subnodes and trees

Exclude tags while exporting

org-export-exclude-tags or EXCLUDE_TAGS.

By configuring the org-export-exclude-tags variable, or an EXCLUDE_TAGS file variable, then inserting a matching Org tag on a sub-heading, that content will not appear in the exported Markdown or in the published post, but will remain intact in the original .org file. In my case, it’s a :noexport: tag.

Agenda

habits or repeating tasks

  • A SCHEDULED tag with a repeat specification (like .+ or ++), and
  • A STYLE property set to the value habit.

“+1d” is the repeater: it repeats the task or every day and it should have a property of style with value “habit”

Repeater

ref

  • The TODO has a scheduled date, usually with a ‘.+’ style repeat interval.
  • A ‘++’ style may be appropriate for habits with time constraints, e.g., must be done on weekends,
  • or a ‘+’ style for an unusual habit that can have a backlog, e.g., weekly reports.
  • .+ vs ++ .+1d : advance 1 day after completion

++1w: like .+1w but respects the scheduled time

SCHEDULED: <2022-01-09 Sun ++1w>

  • Example

    ‘.+2d/3d: (minimum/maximum ) which says that you want to do the task at least every three days, but at most every two days.

Example

  • TODO Shave

properties

c-c c-x p: set properties For making a TODO as habit style: habit

Date/time prompt

ref

Date examples

‘3-2-5’ ⇒ 2003-02-05 ‘2/5/3’ ⇒ 2003-02-05 ‘14’ ⇒ 2006-06-14 ‘12’ ⇒ 2006-07-12 ‘2/5’ ⇒ 2007-02-05 ‘Fri’ ⇒ nearest Friday (default date or later) ‘sep 15’ ⇒ 2006-09-15 ‘feb 15’ ⇒ 2007-02-15 ‘sep 12 9’ ⇒ 2009-09-12 ‘12:45’ ⇒ 2006-06-13 12:45 ‘22 sept 0:34’ ⇒ 2006-09-22 0:34 ‘w4’ ⇒ ISO week for of the current year 2006 ‘2012 w4 fri’ ⇒ Friday of ISO week 4 in 2012 ‘2012-w04-5’ ⇒ Same as above

Time examples

‘+0’ ⇒ today ‘.’ ⇒ today ‘+2h’ ⇒ two hours from now ‘+4d’ ⇒ four days from today ‘+4’ ⇒ same as +4d ‘+2w’ ⇒ two weeks from today ‘++5’ ⇒ five days from default date ‘+2tue’ ⇒ second Tuesday from now

Relative dates

  • h: hour
  • d: day
  • w: week
  • m: month (not minute)
  • y: year

Examples

  • Time:

    ‘1pm => 1pm today’

  • Range

    ‘11am-1:15pm’ ⇒ 11:00-13:15 ‘11h-13h15’ ⇒ same as above ‘11am–1:15pm’ ⇒ same as above ‘11am+2:15’ ⇒ same as above

check