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Top Forums Shell Programming and Scripting While loop within if statement Post 302848725 by Aia on Thursday 29th of August 2013 11:38:39 PM
Old 08-30-2013
There is also the until loop. Exactly the same that while loop but the test is negated. Some times improves readability.

Code:
until [[ "${month}" = "q" ]]
do
    printf "Please, enter a month (q to quit): "
    read month
    
    if [[ "${month}" = "q" ]]
    then
          printf "Bye-bye!\n"
    elif [[ "${month}" = "January" ]]
    then
          ...
    else
          printf "%s does not exist in the Western Calendar\n" "${month}"
    fi
done


Last edited by Aia; 08-30-2013 at 12:40 AM.. Reason: More
 

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cal(1)								   User Commands							    cal(1)

NAME
cal - display a calendar SYNOPSIS
cal [ [month] year] DESCRIPTION
The cal utility writes a Gregorian calendar to standard output. If the year operand is specified, a calendar for that year is written. If no operands are specified, a calendar for the current month is written. OPERANDS
The following operands are supported: month Specify the month to be displayed, represented as a decimal integer from 1 (January) to 12 (December). The default is the current month. year Specify the year for which the calendar is displayed, represented as a decimal integer from 1 to 9999. The default is the current year. ENVIRONMENT VARIABLES
See environ(5) for descriptions of the following environment variables that affect the execution of cal: LANG, LC_ALL, LC_CTYPE, LC_TIME, LC_MESSAGES, and NLSPATH. TZ Determine the timezone used to calculate the value of the current month. EXIT STATUS
The following exit values are returned: 0 Successful completion. >0 An error occurred. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWesu | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ SEE ALSO
calendar(1), attributes(5), environ(5), standards(5) NOTES
An unusual calendar is printed for September 1752. That is the month 11 days were skipped to make up for lack of leap year adjustments. To see this calendar, type: cal 9 1752 The command cal 83 refers to the year 83, not 1983. The year is always considered to start in January. SunOS 5.11 1 Feb 1995 cal(1)
All times are GMT -4. The time now is 03:00 AM.
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