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Shell Programming and Scripting
How to insert string at particular 4th line in text file
Post 302341188 by puneet.goel on Wednesday 5th of August 2009 08:34:09 AM
08-05-2009
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LEARN ABOUT ULTRIX
dp
dp(8mh) dp(8mh) Name dp - parse dates RFC 822-style Syntax /usr/lib/mh/dp [ -form file ] [ -format string ] [ -help ] [ -width columns ] dates Description The command parses dates according to the ARPA Internet standard. It also understands many non-standard formats, such as those produced by TOPS-20 sites and some UNIX sites using It is useful for seeing how MH will interpret a date. The program treats each argument as a single date, and prints the date out in the official RFC 822 format. Hence, it is usually best to enclose each argument in double quotes (") for the shell. Options -form file Overrides the default output format of The output is formatted according to the instructions in the specified file. This must be a format file; see -format string Overrides the default output format of The output is formatted according to the instructions in the specified string. This must be a format string; see The argument to the -format option must be interpreted as a single token by the shell that invokes Therefore, you should usually place the argument to this option inside double quotes ("). -help Prints a list of the valid options to this command. -width columns Specifies the width of the screen in columns. The defaults for this command are as follows: -width defaults to the width of the terminal Examples This is the default format string used by %<(nodate{text})error: %{text}%|%(pretty{text})%> When an error is detected, this prints error: and the date that is in error. Otherwise, it outputs the proper RFC 822 format of the date. Files User profile. See Also ap(8mh) Standard for the Format of ARPA Internet Text Messages (RFC 822) dp(8mh)