2001-07-10 14:25:50 +00:00
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#!/bin/bash
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2001-09-04 13:27:31 +00:00
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# Exercising the 'date' command
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2001-07-10 14:25:50 +00:00
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echo "The number of days since the year's beginning is `date +%j`."
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2001-09-04 13:27:31 +00:00
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# Needs a leading '+' to invoke formatting.
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2001-07-10 14:25:50 +00:00
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# %j gives day of year.
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echo "The number of seconds elapsed since 01/01/1970 is `date +%s`."
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2001-10-15 14:21:41 +00:00
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# %s yields number of seconds since "UNIX epoch" began,
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#+ but how is this useful?
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2001-07-10 14:25:50 +00:00
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prefix=temp
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2004-01-26 00:03:37 +00:00
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suffix=$(date +%s) # The "+%s" option to 'date' is GNU-specific.
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2001-07-10 14:25:50 +00:00
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filename=$prefix.$suffix
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2008-11-23 22:43:47 +00:00
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echo "Temporary filename = $filename"
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# It's great for creating "unique and random" temp filenames,
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2001-10-15 14:21:41 +00:00
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#+ even better than using $$.
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2001-07-10 14:25:50 +00:00
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# Read the 'date' man page for more formatting options.
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exit 0
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