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Full Discussion: Help in script
Top Forums UNIX for Dummies Questions & Answers Help in script Post 302545882 by pandeesh on Wednesday 10th of August 2011 03:12:08 AM
Old 08-10-2011
Help in script
Hi,

I have the below script:
Code:
 
/opt/app/dstage/DataStage752/Ascential/DataStage/DSEngine/bin/dsjob lprojects >> prj
j=`cat prj|wc -l|sed -e 's/^[ \t]*//'` 
for i in {1..$j}
do
pr=head -$i prj
k=`cat status.txt| grep $pr |wc -l|sed -e 's/^[ \t]*//'` 
echo "there are $k  in $pr" >> body.txt
done

The first line in the script will create a file called 'prj' which contains the belo data:
Code:
abc
bcd
cde

So, the j value becomes 3.
so the for loop will execute from 1 to 3.

The file status.txt contains the below data:
Code:
1-abc
11-abc
12-abc
1-bcd
0-bcd
1-cde
12-cde
123-cde

So,in the first iteration $pr becomes abc.
While grepping for abc in status.txt there are 3. so $k becomes 3.
So body.txt will get the content as "there are 3 in abc".

In the next iteration, $k becomes 2 (since there are 2 bcd in status.txt).
So the line "there are 2 in bcd" will be appended to body.txt.

But it's not working as expected.

Can any one tell me where i am making mistakes in the script?

Thanks

---------- Post updated at 12:38 PM ---------- Previous update was at 11:25 AM ----------

Silly mistake:

head -1 will work correctly

but while going with head -2 , it causes the failure in grep

---------- Post updated at 12:42 PM ---------- Previous update was at 12:38 PM ----------

In stead of head , i would like to go with sed -n option.

BUt i am getting syntax error for the below code:

Code:
 
pr=`sed -n '$i{p}' prj|sed -e 's/^[ \t]*//'`

can any one help me?

Thanks
Last edited by pandeesh; 08-10-2011 at 03:52 AM..
 

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LEARN ABOUT REDHAT

unix2dos

unix2dos(1)						      General Commands Manual						       unix2dos(1)

NAME

       unix2dos - UNIX to DOS text file format converter

SYNOPSYS

       unix2dos [options] [-c convmode] [-o file ...] [-n infile outfile ...]

       Options:

       [-hkqV] [--help] [--keepdate] [--quiet] [--version]

DESCRIPTION

       This manual page documents unix2dos, the program that converts text files in UNIX format to DOS format.

OPTIONS

       The following options are available:

       -h --help
	      Print online help.

       -k --keepdate
	      Keep the date stamp of output file same as input file.

       -q --quiet
	      Quiet mode. Suppress all warning and messages.

       -V --version
	      Prints version information.

       -c --convmode convmode
	      Sets conversion mode. Simulates unix2dos under SunOS.

       -o --oldfile file ...
	      Old file mode. Convert the file and write output to it. The program default to run in this mode. Wildcard names may be used.

       -n --newfile infile outfile ...
	      New  file  mode.	Convert the infile and write output to outfile. File names must be given in pairs and wildcard names should NOT be
	      used or you WILL lost your files.

EXAMPLES

       Get input from stdin and write output to stdout.

	      unix2dos

       Convert and replace a.txt. Convert and replace b.txt.

	      unix2dos a.txt b.txt

	      unix2dos -o a.txt b.txt

       Convert and replace a.txt in ASCII conversion mode.  Convert and replace b.txt in ISO conversion mode.

	      unix2dos a.txt -c iso b.txt

	      unix2dos -c ascii a.txt -c iso b.txt

       Convert and replace a.txt while keeping original date stamp.

	      unix2dos -k a.txt

	      unix2dos -k -o a.txt

       Convert a.txt and write to e.txt.

	      unix2dos -n a.txt e.txt

       Convert a.txt and write to e.txt, keep date stamp of e.txt same as a.txt.

	      unix2dos -k -n a.txt e.txt

       Convert and replace a.txt. Convert b.txt and write to e.txt.

	      unix2dos a.txt -n b.txt e.txt

	      unix2dos -o a.txt -n b.txt e.txt

       Convert c.txt and write to e.txt. Convert and replace a.txt.  Convert and replace b.txt. Convert d.txt and write to f.txt.

	      unix2dos -n c.txt e.txt -o a.txt b.txt -n d.txt f.txt

DIAGNOSTICS

BUGS

       The program does not work properly under MSDOS in stdio processing mode.  If you know why is that so, please tell me.

AUTHOR

       Benjamin Lin - ( blin@socs.uts.edu.au )

MISCELLANY

       Tested environment:

	      Linux 1.2.0 with GNU C 2.5.8

	      SunOS 4.1.3 with GNU C 2.6.3

	      MS-DOS 6.20 with Borland C++ 4.02

       Suggestions and bug reports are welcome.

SEE ALSO

       dos2unix(1)

1995.03.31							   unix2dos v2.2						       unix2dos(1)
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