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  #4 (permalink)  
Old 06-24-2008
ripat ripat is offline Forum Advisor  
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Join Date: Oct 2006
Location: Belgium
Posts: 438
To know your version of date, just run my command and see what your box reply.

A workaround, but again with GNU date:
Code:
#!/bin/bash 

STAMP_TODAY=$(date --utc --date "$1" +%s)
STAMP_YESTERDAY=$((STAMP_TODAY-86400))
DTE_YESTERDAY=$(date --utc --date "1970-01-01 $STAMP_YESTERDAY sec" "+%m/%d")

echo $DTE_YESTERDAY