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Full Discussion: Help on "for" loop in bourne shell
Top Forums Shell Programming and Scripting Help on "for" loop in bourne shell Post 302374356 by Lakris on Tuesday 24th of November 2009 08:12:52 AM
Old 11-24-2009
Quote:
Originally Posted by EmbedUX
Thank you very mcuh for the reply....

I could use the above mentioned for loop syntax......

But the limit of the loop is unkonown i.e., in
Code:
 for i in 1 2 3 4 5

limit is only 5. What it should be for 'n' numbers ?

Secondly, with the above code is it possible to manipulate the value of i....i.e., if I want a decrement of 3 instead of 1......is it possible...

Thanks in advance.......

Hi, You could have a look at seq, man seq

Quote:
NAME
seq - print a sequence of numbers

SYNOPSIS
seq [OPTION]... LAST
seq [OPTION]... FIRST LAST
seq [OPTION]... FIRST INCREMENT LAST
Example:
Code:
master:~ # for x in $(seq 1 2 10);do for y in $(seq 1 $x);do echo -n $x; done;echo;done
1
333
55555
7777777
999999999
master:~ #


Best regards,
Lakris
 

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LEARN ABOUT REDHAT

dircolors

DIRCOLORS(1)								FSF							      DIRCOLORS(1)

NAME

       dircolors - color setup for ls

SYNOPSIS

       dircolors [OPTION]... [FILE]

DESCRIPTION

       Output commands to set the LS_COLORS environment variable.

   Determine format of output:
       -b, --sh, --bourne-shell
	      output Bourne shell code to set LS_COLORS

       -c, --csh, --c-shell
	      output C shell code to set LS_COLORS

       -p, --print-database
	      output defaults

       --help display this help and exit

       --version
	      output version information and exit

       If  FILE  is specified, read it to determine which colors to use for which file types and extensions.  Otherwise, a precompiled database is
       used.  For details on the format of these files, run `dircolors --print-database'.

AUTHOR

       Written by H. Peter Anvin.

REPORTING BUGS

       Report bugs to <bug-coreutils@gnu.org>.

COPYRIGHT

       Copyright (C) 2002 Free Software Foundation, Inc.
       This is free software; see the source for copying conditions.  There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU-
       LAR PURPOSE.

SEE ALSO

       The  full documentation for dircolors is maintained as a Texinfo manual.  If the info and dircolors programs are properly installed at your
       site, the command

	      info dircolors

       should give you access to the complete manual.

dircolors (coreutils) 4.5.3					   February 2003						      DIRCOLORS(1)
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