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Bash Display First Friday of the next month


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# 8  
Bash/Gnu Date version
Code:
offsets=(5 4 3 2 1 0 6)
year=2018
for month in {01..12}
do
   date +"%m/%d/%Y" --date "$year/$month/01 + ${offsets[$(date +%w --date ${year}/${month}/01)]} days"
done
01/05/2018
02/02/2018
03/02/2018
04/06/2018
05/04/2018
06/01/2018
07/06/2018
08/03/2018
09/07/2018
10/05/2018
11/02/2018
12/07/2018

Of course, the disadvantage of my solution is that you are running date twice.
Or:
Code:
starts=(6 5 4 3 2 1 7)
year=2018
for month in {01..12}
do
    dstart=$(date +%w --date "$year/$month/01")
    printf "%02d/%02d/%d\n" ${month#0} ${starts[$dstart]} $year
done

Andrew
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BASHBUG(1)							      bashbug								BASHBUG(1)

NAME
bashbug - report a bug in bash
SYNOPSIS
bashbug [--help] [--version] [bug-report-email-addresses]
DESCRIPTION
bashbug is a utility for reporting bugs in Bash to the maintainers. bashbug will start up your preferred editor with a preformatted bug report template for you to fill in. Save the file and quit the editor once you have completed the missing fields. bashbug will notify you of any problems with the report and ask for confirmation before sending it. By default the bug report is mailed to both the GNU developers and the Debian Bash maintainers. The recipients can be changed by giving a comma separated list of bug-report-email-addresses. If you invoke bashbug by accident, just quit your editor. You will always be asked for confirmation before a bug report is sent.
OPTIONS
--help Show a brief usage message and exit. --version Show the version of bashbug and exit. bug-report-email-addresses Comma separated list of recipients' email addresses. By default the report is mailed to both the GNU developers and the Debian Bash maintainers.
ENVIRONMENT
DEFEDITOR Editor to use for editing the bug report. EDITOR Editor to use for editing the bug report (overridden by DEFEDITOR).
SEE ALSO
bash(1), reportbug(1), update-alternatives(8) for preferred editor.
AUTHOR
This manual page was written by Christer Andersson <klamm@comhem.se> for the Debian project (but may be used by others). GNU Bash 3.1 11 December 2007 BASHBUG(1)

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