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Full Discussion: Passing arguments to a bash script
Top Forums Shell Programming and Scripting Passing arguments to a bash script Post 302905325 by Don Cragun on Wednesday 11th of June 2014 03:53:23 AM
Old 06-11-2014
In addition to what Scrutinizer said, the following:
Code:
a = CREATE TABLE mytable(x int, y string);

is not a valid awk command. And, you will be executing this invalid command once for every line in both input files. To get the output you say you want, awk is an extremely expensive way to do it, but it could be done with something like:
Code:
awk -F, -v mytable="$1" '
BEGIN { printf("a = CREATE TABLE %s(x int, y string);\n", mytable)}
{       # ignore every line in both input files.}' file[12].txt

To get this output in bash (or any other shell that recognizes basic Bourne shell syntax), a much more efficient way to do it would be:
Code:
printf 'a = CREATE TABLE %s(x int, y string);\n' "$1"

Note that ShriniShoo's awk script sets the awk variable a to part of the desired output every time it reads a line from either file, but never does anything with it. That script produces no output.

Using echo instead of printf (as sea suggested) may have unwanted side effects if the user supplied argument to your script contains any backslash characters (depending on which version of echo you're using).
 

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LEARN ABOUT OSX

create_tablespace

CREATE 
TABLESPACE(7)						   SQL Commands 					      CREATE TABLESPACE(7)

NAME

       CREATE TABLESPACE - define a new tablespace

SYNOPSIS

       CREATE TABLESPACE tablespacename [ OWNER username ] LOCATION 'directory'

DESCRIPTION

       CREATE TABLESPACE registers a new cluster-wide tablespace. The tablespace name must be distinct from the name of any existing tablespace in
       the database cluster.

       A tablespace allows superusers to define an alternative location on the file system where the data files containing database objects  (such
       as tables and indexes) can reside.

       A  user	with  appropriate  privileges can pass tablespacename to CREATE DATABASE, CREATE TABLE, CREATE INDEX or ADD CONSTRAINT to have the
       data files for these objects stored within the specified tablespace.

PARAMETERS

       tablespacename
	      The name of a tablespace to be created. The name cannot begin with pg_, as such names are reserved for system tablespaces.

       username
	      The name of the user who will own the tablespace. If omitted, defaults to the user executing the command. Only superusers can create
	      tablespaces, but they can assign ownership of tablespaces to non-superusers.

       directory
	      The directory that will be used for the tablespace. The directory must be empty and must be owned by the PostgreSQL system user. The
	      directory must be specified by an absolute path name.

NOTES

       Tablespaces are only supported on systems that support symbolic links.

       CREATE TABLESPACE cannot be executed inside a transaction block.

EXAMPLES

       Create a tablespace dbspace at /data/dbs:

       CREATE TABLESPACE dbspace LOCATION '/data/dbs';

       Create a tablespace indexspace at /data/indexes owned by user genevieve:

       CREATE TABLESPACE indexspace OWNER genevieve LOCATION '/data/indexes';

COMPATIBILITY

       CREATE TABLESPACE is a PostgreSQL extension.

SEE ALSO

       CREATE DATABASE [create_database(7)], CREATE TABLE [create_table(7)], CREATE INDEX [create_index(7)], DROP TABLESPACE [drop_tablespace(7)],
       ALTER TABLESPACE [alter_tablespace(7)]

SQL - Language Statements					    2010-05-14						      CREATE TABLESPACE(7)
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