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Shell Programming and Scripting

Date validation

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# 1  
Old 04-16-2012
Date validation
File contains below data,how to validate the date using awk command or any command.

date formate is fixed as "YYYYMMDD"

Code:
 test1|20120405
test2|20121405

output should be:
Code:
 test1|20120405

Thanks
# 2  
Old 04-16-2012
A simple way is to use the touch command...
Code:
$ cat file1
test1|20120405
test2|20121405

$ while read ln; do dt=${ln#*|}"0000"; touch -t "$dt" testfile && echo "$ln"; done < file1 > file2
touch: invalid date format `201214050000'

$ cat file2
test1|20120405

$ rm testfile

$

# 3  
Old 04-16-2012
Thanks lot.
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