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Full Discussion: Truncate multiple file extensions
Top Forums Shell Programming and Scripting Truncate multiple file extensions Post 302133544 by summer_cherry on Friday 24th of August 2007 01:06:53 AM
Old 08-24-2007
!!!!!!!!!!!!
Hi try this one:

Code:
echo "number"
read num
who | nawk -v n=$num 'BEGIN{
str="file"
for (i=1;i<=n;i++)
str=sprintf("%s%s",str,".txt")
}
END{
print str
printf("%stxt\n",substr(str,1,index(str,".")))
}'

 

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LEARN ABOUT DEBIAN

tcttest

TCTTEST(1)							   Tokyo Cabinet							TCTTEST(1)

NAME

       tcttest - test cases of the table database API

DESCRIPTION

       The command `tcttest' is a utility for facility test and performance test.  This command is used in the following format.  `path' specifies
       the path of a database file.  `rnum' specifies the number of iterations.  `bnum' specifies the number of  buckets.   `apow'  specifies  the
       power of the alignment.	`fpow' specifies the power of the free block pool.

	      tcttest  write  [-mt]  [-tl] [-td|-tb|-tt|-tx] [-rc num] [-lc num] [-nc num] [-xm num] [-df num] [-ip] [-is] [-in] [-it] [-if] [-ix]
	      [-nl|-nb] [-rnd] path rnum [bnum [apow [fpow]]]
		     Store records with columns "str", "num", "type", and "flag".
	      tcttest read [-mt] [-rc num] [-lc num] [-nc num] [-xm num] [-df num] [-nl|-nb] [-rnd] path
		     Retrieve all records of the database above.
	      tcttest remove [-mt] [-rc num] [-lc num] [-nc num] [-xm num] [-df num] [-nl|-nb] [-rnd] path
		     Remove all records of the database above.
	      tcttest rcat [-mt] [-tl] [-td|-tb|-tt|-tx] [-rc num] [-lc num] [-nc num] [-xm num] [-df num] [-ip] [-is]	[-in]  [-it]  [-if]  [-ix]
	      [-nl|-nb] [-pn num] [-dai|-dad|-rl|-ru] path rnum [bnum [apow [fpow]]]
		     Store records with partway duplicated keys using concatenate mode.
	      tcttest misc [-mt] [-tl] [-td|-tb|-tt|-tx] [-nl|-nb] path rnum
		     Perform miscellaneous test of various operations.
	      tcttest wicked [-mt] [-tl] [-td|-tb|-tt|-tx] [-nl|-nb] path rnum
		     Perform updating operations selected at random.

       Options feature the following.

	      -mt : call the function `tctdbsetmutex'.
	      -tl : enable the option `TDBTLARGE'.
	      -td : enable the option `TDBTDEFLATE'.
	      -tb : enable the option `TDBTBZIP'.
	      -tt : enable the option `TDBTTCBS'.
	      -tx : enable the option `TDBTEXCODEC'.
	      -rc num : specify the number of cached records.
	      -lc num : specify the number of cached leaf pages.
	      -nc num : specify the number of cached non-leaf pages.
	      -xm num : specify the size of the extra mapped memory.
	      -df num : specify the unit step number of auto defragmentation.
	      -ip : create the number index for the primary key.
	      -is : create the string index for the column "str".
	      -in : create the number index for the column "num".
	      -it : create the string index for the column "type".
	      -if : create the token inverted index for the column "flag".
	      -ix : create the q-gram inverted index for the column "text".
	      -nl : enable the option `TDBNOLCK'.
	      -nb : enable the option `TDBLCKNB'.
	      -rnd : select keys at random.
	      -pn num : specify the number of patterns.
	      -dai : use the function `tctdbaddint' instead of `tctdbputcat'.
	      -dad : use the function `tctdbadddouble' instead of `tctdbputcat'.
	      -rl : set the length of values at random.
	      -ru : select update operations at random.

       This command returns 0 on success, another on failure.

SEE ALSO

       tctmttest(1), tctmgr(1), tctdb(3), tokyocabinet(3)

Man Page							    2011-02-12								TCTTEST(1)
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