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Full Discussion: Use of regular expression
Operating Systems Linux Fedora Use of regular expression Post 302927939 by Don Cragun on Sunday 7th of December 2014 05:03:41 PM
Old 12-07-2014
Is this a homework assignment? If so, note that the homework can only be posted in a special forum following the rules noted here.

If it is not a homework assignment, why is a one-liner a requirement (most computer professionals prefer readable, maintainable code)?
Why are ls and awk requirements when this can all (except for the mv) be done with just shell built-ins?
What shell and OS (including version) are you using?
 

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times(1)                                                           User Commands                                                          times(1)

NAME
times - shell built-in function to report time usages of the current shell SYNOPSIS
sh times ksh times DESCRIPTION
sh Print the accumulated user and system times for processes run from the shell. ksh Print the accumulated user and system times for the shell and for processes run from the shell. 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, following 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 word splitting and file name generation are not performed. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
ksh(1), sh(1), time(1), attributes(5) SunOS 5.10 15 Apr 1994 times(1)
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