How can I create a file in unix (csh) with date and time ?

File format : <filename>_<date>_<time>.txt

<date> - DDMMYY
<time> - HH24MISS

For example :

Hi. In AIX you can use some modifiers with date command in order to format the date result and extract only the useful info.
The command should be:
date +%<Field Descriptor>

For example, try this one:
touch filetest_`date +%d``date +%m``date +%y`_`date +%H``date +%M``date +%S`.txt

It must create an empty file with the name as you wish.

I include a list of the modifiers you can use
I hope it would be useful to you.
Regards

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Field Descriptors
%a Displays the locale's abbreviated weekday name.
%A Displays the locale's full weekday name.
%b Displays the locale's abbreviated month name.
%B Displays the locale's full month name.
%c Displays the locale's appropriate date and time representation. This is the default.
%C Displays the century as a decimal number (00-99). A year is divided by 100 and truncated to an integer.
%d Displays the day of the month as a decimal number (01-31). In a two-digit field, a 0 is used as leading space fill.
%D Displays the date in the format equivalent to %m/%d/%y.
%e Displays the day of the month as a decimal number (1-31). In a two-digit field, a blank space is used as leading space fill.
%h Displays the locale's abbreviated month name (a synonym for %b).
%H Displays the hour (24-hour clock) as a decimal number (00-23).
%I Displays the hour (12-hour clock) as a decimal number (01-12).
%j Displays the day of year as a decimal number (001-366).
%m Displays the month of year as a decimal number (01-12).
%M Displays the minutes as a decimal number (00-59).
%n Inserts a <new-line> character.
%p Displays the locale's equivalent of either AM or PM.
%r Displays 12-hour clock time (01-12) using the AM-PM notation; in the POSIX locale, this is equivalent to %I:%M:%S %p.
%S Displays the seconds as a decimal number (00- 59).
%t Inserts a <tab> character.
%T Displays the 24-hour clock (00-23) in the format equivalent to HH:MMS .
%u Displays the weekday as a decimal number from 1-7 (Sunday = 7). Refer to the %w field descriptor.
%U Displays week of the year(Sunday as the first day of the week) as a decimal number[00 - 53] . All days in a new year preceding the first Sunday are considered to be in week 0.
%V Displays the week of the year as a decimal number from 01-53 (Monday is used as the first day of the week). If the week containing January 1 has four or more days in the new year, then it is considered week 01; otherwise, it is week 53 of the previous year.
%w Displays the weekday as a decimal number from 0-6 (Sunday = 0). Refer to the %u field descriptor.
%W Displays the week number of the year as a decimal number (00-53) counting Monday as the first day of the week.
%x Displays the locale's appropriate date representation.
%X Displays the locale's appropriate time representation.
%y Displays the last two numbers of the year (00-99).
%Y Displays the year with century as a decimal number.
%Z Displays the time-zone name, or no characters if no time zone is determinable.
%% Displays a % (percent sign) character.