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Full Discussion: Can I spread commands over multiple lines?
Top Forums UNIX for Dummies Questions & Answers Can I spread commands over multiple lines? Post 302075857 by tphyahoo on Wednesday 7th of June 2006 09:06:01 AM
Old 06-07-2006
Can I spread commands over multiple lines?
Below an example of what I mean. The first attempt does what I want; the second doesn't, because bash assumes a line break means the end of an individual "command unix". Is there some way that I can convince bash to parse out, eg, to the closing parenthesis?

I'm thinking this would allow for neater looking scripts, specially if there are a lot of obscure parameters being passed in with hyphens.

Thanks!

Code:
$ls -l #l flag gives more output
insgesamt 4
drwxr-xr-x  2 hartmann users 144 2006-06-07 14:57 a
drwxr-xr-x  2 hartmann users 144 2006-06-07 14:57 b
-rwxr--r--  1 hartmann users 546 2006-06-07 15:01 diffem.pl
$( ls
> -l # l flag gives more output
> )
a  b  diffem.pl
bash: -l: command not found
$

 

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LEARN ABOUT HPUX

break

break(1)							   User Commands							  break(1)

NAME

       break, continue - shell built-in functions to escape from or advance within a controlling while, for, foreach, or until	loop

SYNOPSIS

   sh
       break [n]

       continue [n]

   csh
       break

       continue

   ksh
       *break [n]

       *continue [n]

DESCRIPTION

   sh
       The break utility exits from the enclosing for or while loop, if any. If n is specified, break n levels.

       The continue utility resumes the next iteration of the enclosing for or while loop. If n is specified, resume at the n-th enclosing loop.

   csh
       The  break  utility  resumes  execution after the end of the nearest enclosing foreach or while loop. The remaining commands on the current
       line are executed. This allows multilevel breaks to be written as a list of break commands, all on one line.

       The continue utility continues execution of the next iteration of the nearest enclosing while or foreach loop.

   ksh
       The break utility exits from the enclosed for, while, until, or select loop, if any. If n is specified,	then  break  n	levels.  If  n	is
       greater than the number of enclosing loops, the outermost enclosing loop shall be exited.

       The  continue utility resumes the next iteration of the enclosed for, while, until, or select loop. If n is specified then resume at the n-
       th enclosed loop. If n is greater than the number of enclosing loops, the outermost enclosing loop shall be used.

       On this man page, ksh(1) commands that are preceded by one or two * (asterisks) are treated specially in the following ways:

       1.  Variable assignment lists preceding the command remain in effect when the command completes.

       2.  I/O redirections are processed after variable assignments.

       3.  Errors cause a script that contains them to abort.

       4.  Words that follow a command preceded by ** that are in the format of a variable assignment are expanded with the same rules as a  vari-
	   able  assignment.  This means that tilde substitution is performed after the = sign, and also that word splitting and file name genera-
	   tion are not performed.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       csh(1), exit(1), ksh(1), sh( 1), attributes(5)

SunOS 5.10							    17 Jul 2002 							  break(1)
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