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Top Forums Shell Programming and Scripting simultaneously create three empty files? Post 302205343 by drl on Saturday 14th of June 2008 12:20:11 PM
Old 06-14-2008
Hi.

Some shells may help:

Code:
#!/bin/bash3 -

# @(#) s1       Demonstrate brace expansion.

echo
echo "(Versions displayed with local utility \"version\")"
version >/dev/null 2>&1 && version =o $(_eat $0 $1)
echo

rm -f scratch*
echo " Situation before:"
ls scratch*

touch scratch{1..3}

echo
echo " Situation after :"
ls scratch*

exit 0

Producing:
Code:
% ./s1

(Versions displayed with local utility "version")
Linux 2.6.11-x1
GNU bash 3.00.16(1)-release

 Situation before:
ls: scratch*: No such file or directory

 Situation after :
scratch1  scratch2  scratch3

See man page for details -- also worked on ksh 93s+ ... cheers, drl
 

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ECHO(1) 						    BSD General Commands Manual 						   ECHO(1)

NAME
echo -- write arguments to the standard output SYNOPSIS
echo [-n] [string ...] DESCRIPTION
The echo utility writes any specified operands, separated by single blank (' ') characters and followed by a newline (' ') character, to the standard output. The following option is available: -n Do not print the trailing newline character. This may also be achieved by appending 'c' to the end of the string, as is done by iBCS2 compatible systems. Note that this option as well as the effect of 'c' are implementation-defined in IEEE Std 1003.1-2001 (``POSIX.1'') as amended by Cor. 1-2002. Applications aiming for maximum portability are strongly encouraged to use printf(1) to sup- press the newline character. Some shells may provide a builtin echo command which is similar or identical to this utility. Most notably, the builtin echo in sh(1) does not accept the -n option. Consult the builtin(1) manual page. EXIT STATUS
The echo utility exits 0 on success, and >0 if an error occurs. SEE ALSO
builtin(1), csh(1), printf(1), sh(1) STANDARDS
The echo utility conforms to IEEE Std 1003.1-2001 (``POSIX.1'') as amended by Cor. 1-2002. BSD
April 12, 2003 BSD
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