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How to extract timestamp from the filename?

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Top Forums Shell Programming and Scripting How to extract timestamp from the filename?
# 8  
Old 05-31-2010
Using shell builtin array properties.
Code:
#!/bin/ksh or bash
F="name_abc_20100531_142528.txt"
IFS="_."  # delimiters are _ and .
f=($F)    # parse string to the array f, id 0 = 1st fld
echo "Date ${f[2]} Time ${f[3]}"

This User Gave Thanks to kshji For This Post:
frans
# 9  
Old 05-31-2010
MySQL
Quote:
Originally Posted by kshji
Using shell builtin array properties.
Code:
#!/bin/ksh or bash
F="name_abc_20100531_142528.txt"
IFS="_."  # delimiters are _ and .
f=($F)    # parse string to the array f, id 0 = 1st fld
echo "Date ${f[2]} Time ${f[3]}"

Smilie I didn't know that you could use multiple delimiters in bash !
# 10  
Old 06-01-2010
with sed
Nobody used SED, so here it is. This is similar to what Frans did with an array.

Code:
mytime=($( echo name_abc_20100531_142528.txt | \
    sed 's/^.*_\([0-9]\+\)_\([0-9]\+\).*$/\1 \2/' ) )
echo ${mytime[0]}
echo ${mytime[1]}
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