08-16-2007
Quote:
Originally Posted by
Perderabo
or change the line
exec < data
to
exec < testingdata.txt
or change it to:
exec < $1
and then pass the name of file as an argument
or eliminate the line entirely and redirect the input
Ok I got it,but when i ran the script with the changed name of the input file it gave me an error
./script
./script[82]: item: bad number
The change i did in the script is only this
exec < testingdata
The requiremnt is a bot diffrent,i am mentioning the points for you..
# scan the 27 data items to make sure they are numbers
# and remove leading zeros while we are at it
This req is like this---
1... We are not bothered about the leading zeroes ie 01,02,03-------------- In my requirement they all are valid numbers,we should ignore the zeroes only ie 00 where ever they are,they are just for filling purpose dont have any meaning.
2..# note each column with a non-zero--
here leading zero is fine ie 01,02,03----- they are fine.Here i need to check that the colums must have a valid number and if more than that numbers are there then it should be in ascending order,if not the data is ascending order in column it should print that data as an error.
3. There should be 27 entries in a row that is fine but in that there must be exactly 15 numbers leaving all 00.
Your apporoach to the requirement is very correct but just some changes.Rest of the code is fullfilling the requirement.I am new to shell script.
Thanks
Namish
Last edited by namishtiwari; 08-16-2007 at 08:23 AM..
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LEARN ABOUT OPENDARWIN
scotty
scotty(1) Tnm Tcl Extension scotty(1)
__________________________________________________________________________________________________________________________________________________
NAME
scotty - A Tcl shell including the Tnm extensions.
SYNOPSIS
scotty ?fileName arg arg ...?
_________________________________________________________________
DESCRIPTION
scotty is a Tcl interpreter with extensions to obtain status and configuration information about TCP/IP networks. After startup, scotty
evaluates the commands stored in .scottyrc and .tclshrc in the home directory of the user.
SCRIPT FILES
If scotty is invoked with arguments then the first argument is the name of a script file and any additional arguments are made available to
the script as variables (see below). Instead of reading commands from standard input scotty will read Tcl commands from the named file;
scotty will exit when it reaches the end of the file.
If you create a Tcl script in a file whose first line is
#!/usr/local/bin/scotty2.1.11
then you can invoke the script file directly from your shell if you mark the file as executable. This assumes that scotty has been
installed in the default location in /usr/local/bin; if it's installed somewhere else then you'll have to modify the above line to match.
Many UNIX systems do not allow the #! line to exceed about 30 characters in length, so be sure that the scotty executable can be accessed
with a short file name.
An even better approach is to start your script files with the following three lines:
#!/bin/sh
# the next line restarts using scotty
exec scotty2.1.11 "$0" "$@"
This approach has three advantages over the approach in the previous paragraph. First, the location of the scotty binary doesn't have to
be hard-wired into the script: it can be anywhere in your shell search path. Second, it gets around the 30-character file name limit in
the previous approach. Third, this approach will work even if scotty is itself a shell script (this is done on some systems in order to
handle multiple architectures or operating systems: the scotty script selects one of several binaries to run). The three lines cause both
sh and scotty to process the script, but the exec is only executed by sh. sh processes the script first; it treats the second line as a
comment and executes the third line. The exec statement cause the shell to stop processing and instead to start up scotty to reprocess the
entire script. When scotty starts up, it treats all three lines as comments, since the backslash at the end of the second line causes the
third line to be treated as part of the comment on the second line.
VARIABLES
Scotty sets the following Tcl variables:
argc Contains a count of the number of arg arguments (0 if none), not including the name of the script file.
argv Contains a Tcl list whose elements are the arg arguments, in order, or an empty string if there are no arg arguments.
argv0 Contains fileName if it was specified. Otherwise, contains the name by which scotty was invoked.
tcl_interactive Contains 1 if scotty is running interactively (no fileName was specified and standard input is a terminal-like device), 0
otherwise.
PROMPTS
When scotty is invoked interactively it normally prompts for each command with ``% ''. You can change the prompt by setting the variables
tcl_prompt1 and tcl_prompt2. If variable tcl_prompt1 exists then it must consist of a Tcl script to output a prompt; instead of out-
putting a prompt scotty will evaluate the script in tcl_prompt1. The variable tcl_prompt2 is used in a similar way when a newline is typed
but the current command isn't yet complete; if tcl_prompt2 isn't set then no prompt is output for incomplete commands.
SEE ALSO
Tnm(n), Tcl(n)
AUTHORS
Juergen Schoenwaelder <schoenw@cs.utwente.nl>
Tnm scotty(1)