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Full Discussion: [Solved] Help with shell Script ,wait for some files for some time??
Top Forums Shell Programming and Scripting [Solved] Help with shell Script ,wait for some files for some time?? Post 302887254 by Corona688 on Thursday 6th of February 2014 01:47:58 PM
Old 02-06-2014
There is a built-in SECONDS variable you can use... When it becomes greater than 14400, 4 hours will have passed.

Code:
#!/bin/sh

T=$((60*60*4))

# while file1 doesn't exist, or file2 doesn't exist, or file3 doesn't exist, ...
while [ ! -e file1 ] || [ ! -e file2 ] || [ ! -e file3 ] || 
        [ ! -e file4 ] || [ ! -e file5 ] || [ ! -e file6 ] ||
        [ ! -e file7 ]
do
        # wait another minute for files to appear
        sleep 60
        # Break loop if we've waited longer than 4 hours.
        [ "$SECONDS" -gt $T ] && break
done

# Quit if 4 hours exceeded
if [ "$SECONDS" -gt $T ]
then
        echo "timed out"
else
        echo "got files"
fi | mailx -s "subject" person@addr

Last edited by Corona688; 02-06-2014 at 02:54 PM..
This User Gave Thanks to Corona688 For This Post:
Pradeep Shetty
 

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LEARN ABOUT MOJAVE

platform::shell

platform::shell(n)					       Tcl Bundled Packages						platform::shell(n)

__________________________________________________________________________________________________________________________________________________

NAME

       platform::shell - System identification support code and utilities

SYNOPSIS

       package require platform::shell ?1.1.4?

       platform::shell::generic shell
       platform::shell::identify shell
       platform::shell::platform shell
_________________________________________________________________

DESCRIPTION

       The platform::shell package provides several utility commands useful for the identification of the architecture of a specific Tcl shell.

       This  package  allows the identification of the architecture of a specific Tcl shell different from the shell running the package. The only
       requirement is that the other shell (identified by its path), is actually executable on the current machine.

       While for most platform this means that the architecture of the interrogated shell is identical to the architecture of  the  running  shell
       this  is  not generally true. A counter example are all platforms which have 32 and 64 bit variants and where a 64bit system is able to run
       32bit code. For these running and interrogated shell may have different 32/64 bit settings and thus different identifiers.

       For applications like a code repository it is important to identify the architecture of the shell which will  actually  run  the  installed
       packages, versus the architecture of the shell running the repository software.

COMMANDS

       platform::shell::identify shell
	      This command does the same identification as platform::identify, for the specified Tcl shell, in contrast to the running shell.

       platform::shell::generic shell
	      This command does the same identification as platform::generic, for the specified Tcl shell, in contrast to the running shell.

       platform::shell::platform shell
	      This command returns the contents of tcl_platform(platform) for the specified Tcl shell.

KEYWORDS

       operating system, cpu architecture, platform, architecture

platform::shell 						       1.1.4							platform::shell(n)
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