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UNIX for Dummies Questions & Answers
SET command
Post 302100452 by ravi raj kumar on Wednesday 20th of December 2006 01:48:49 AM
12-20-2006
SET command
Hi Unixers, 
In a shell script i found the following statements
mline='grep\^ 1111 emaster.dbf
set -- $mline
The first statement searches the emaster.dbf file for the code 1111 and ifit finds any such line it gets that line and stores it in mline.
But iam getting little bit confusion with second statemnt.I know that the set command is used to set the command line arguments.
Then what is the purpose of -- .
Suppose if mline=1111 Ravi M IT ORACLE
then
$1=1111 $2=Ravi $3=M $4=IT $5=ORACLE.
here how the symbol -- works?
Any help pls.
cheers
Ravi Raj Kumar
In a shell script i found the following statements
mline='grep\^ 1111 emaster.dbf
set -- $mline
The first statement searches the emaster.dbf file for the code 1111 and ifit finds any such line it gets that line and stores it in mline.
But iam getting little bit confusion with second statemnt.I know that the set command is used to set the command line arguments.
Then what is the purpose of -- .
Suppose if mline=1111 Ravi M IT ORACLE
then
$1=1111 $2=Ravi $3=M $4=IT $5=ORACLE.
here how the symbol -- works?
Any help pls.
cheers
Ravi Raj Kumar
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LEARN ABOUT DEBIAN
dbf_dump
DBF_DUMP(1p) User Contributed Perl Documentation DBF_DUMP(1p) NAME
dbf_dump - Dump the record of the dbf file FORMAT
dbf_dump [options] files where options are --rs output record separator (default newline) --fs output field separator (default colon) --fields comma separated list of fields to print (default all) --undef string to print for NULL values (default empty) --memofile specifies unstandard name of attached memo file --memosep separator for dBase III dbt's (default x1ax1a) --nomemo do not try to read the memo (dbt/fpt) file --info print info about the file and fields with additional --SQL parameter, outputs the SQL create table --version print version of the XBase library --table output in nice table format (only available when Data::ShowTable is installed, overrides rs and fs) SYNOPSIS
dbf_dump -fields id,msg table.dbf dbf_dump -fs=' : ' table dbf_dump --nomemo file.dbf ssh user@host 'cat file.dbf.gz' | gunzip - | dbf_dump - DESCRIPTION
Dbf_dump prints to standard output the content of dbf files listed. By default, it prints all fields, separated by colons, one record on a line. The output record and column separators can be changed by switches on the command line. You can also ask only for some fields to be printed. The content of associated memo files (dbf, fpt) is printed for memo fields, unless you use the "--nomemo" option. You can specify reading the standard input by putting dash (-) instead of file name. AVAILABLE FROM
http://www.adelton.com/perl/DBD-XBase/ AUTHOR
(c) 1998--2011 Jan Pazdziora. SEE ALSO
perl(1); XBase(3pm); index_dump(1p) perl v5.12.4 2011-08-31 DBF_DUMP(1p)