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Top Forums UNIX for Dummies Questions & Answers How to find second and fourth Monday of the month? Post 302948565 by RudiC on Tuesday 30th of June 2015 12:56:13 PM
Old 06-30-2015
That's because the algorithm assigns day 7 to the second week already, which is the case for the second Monday of September and December, 2015. On top, the empty lines are due to invalid dates for months that dont have a 31., or 29., 30., 31. for February. And, DATE and dayofmonth hold identical values. Try the modified script:
Code:
YEAR=2015
for MONTH in $(seq -w 1 12) 
  do for DATE in $(seq -w 1 31)
    do dayofweek=$(date -d"${YEAR}${MONTH}${DATE}" +%w)
       [ $? == 0 ] || continue
       weekofmonth=$(( 1 + (10#$DATE - 1) / 7 ))
       if [ $dayofweek -ne 1 -o \( $weekofmonth -ne 2 -a $weekofmonth -ne 4 \) ]
         then continue
         else MONDAY_DATE=`date -d"${YEAR}${MONTH}${DATE}" +%d.%m.%Y`
              echo "$MONDAY_DATE"
       fi
    done
  done

 

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ACCOUNTING(1)                                                         SMPPPD                                                         ACCOUNTING(1)

NAME
accounting - calculates statistics about your internet connections DESCRIPTION
accounting is a simple program to calculate statistics about your internet dial-up connections that are started and stopped by either ifup and ifdown or by a frontend to smpppd like cinternet , qinternet or kinternet. OPTIONS
These options are recognized by accounting. If a long option shows an argument as mandatory, then it is mandatory for the equivalent short option also. -l, --last=NUM Only consider the last NUM connections. -a, --after=DATE Only consider connections started after DATE. DATE is a date with optional time in ISO 8601 format, e.g. `2002-12-24 20:15:00'. Note that a date without time is treated as if the time is 00:00:00. Hence connections started on the specified date are consid- ered. -b, --before=DATE Only consider connections started before DATE. -u, --user=USER Only consider connections started by user USER. --this-year Only consider connections started this year. --last-year Only consider connections started last year. --this-month Only consider connections started this month. --last-month Only consider connections started last month. --this-week Only consider connections started this week. --last-week Only consider connections started last week. --today Only consider connections started today. --yesterday Only consider connections started yesterday. --per-year Show summaries on a per year basis. --per-month Show summaries on a per month basis. --per-week Show summaries on a per week basis. --per-day Show summaries on a per day basis. -c, --connections Only list the connections but do not show provider statistics. -p, --providers Do not list the connections only show the provider statistics. --connection-format=FORMAT The names of the columns to print in the connection list. The names must be separated by a comma. Known column names are time, type, provider, user, status, duration, rx, tx, rxtx, averx, avetx and averxtx. Each name may be appended by a colon and a number indicating the width for the column, e.g. provider:25. The value will not be truncated if the width is too small. --provider-format=FORMAT The names of the columns to print in the provider list equivalent to the --connection-format option. Known column names are provider, number, duration, rx, tx, rxtx, aveduration, averx, avetx and averxtx. --local Display all dates in local time. Also interpret dates on the command line in local time. This is the default. --utc Display all dates in UTC. Also interpret dates on the command line in UTC. --script[=STYLE] Format output for script. Known styles are c and sh. -f, --file=NAME Use a different file with accounting information. --report-errors Report erros in the accounting file. --version Show program version and exit. --help Show help information and exit. NOTES
All informations are only obtained through the accounting log. Hence the informations, esp. the data volume, of currently active connec- tions is not accurate. If you want the know the status of a connection, use ifstatus or a frontend to smpppd like cinternet , qinternet or kinternet instead. The user field is empty for connections started by a remote frontend of smpppd. BUGS
Not yet implemented for ISDN (ippp). FILES
/var/log/smpppd/accounting.log File containing accounting information. SEE ALSO
kinternet, qinternet, cinternet(1), smpppd(8), smpppd-ifcfg(8). AUTHOR
Arvin Schnell <arvin@suse.de> SuSE December 2002 ACCOUNTING(1)
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