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# usage: touch_date <unix ts> <file>
touch_date()
{
touch -t `date -r $1 +%Y%m%d%H%M.%S` "$2"
}
# usage: last_modified <file>
last_modified()
{
stat -f "%m" "$1"
}
# usage: format_last_modified <file>
format_last_modified()
{
stat -f "%Sm" -t "%Y-%m-%d %H:%M:%S %z" "$1"
}
# usage: head_n [count]
head_n()
{
if [ "$1" -gt 0 ]; then
head -n "$1"
fi
}
# usage: sha1 [file]
sha1()
{
if [ $# = 1 ]
then
openssl dgst -sha1 "$1" | sed "s,SHA1.\(.*\).= \(.*\),\2 \1,"
else
openssl dgst -sha1 | sed 's,\(.*= \)*\(.*\),\2 -,'
fi
}
# usage: cp_a <src> <dst>
cp_a()
{
cp -pR "$1" "$2"
}
# usage: _tac
_tac()
{
sed -e '1!G;h;$!d'
}
_seq()
{
(
if [ $# -eq 1 ]
then
/usr/bin/jot $1
elif [ $# -eq 2 ]
then
n1=$((${2} - ${1} + 1))
n2=$1
/usr/bin/jot $n1 $n2
elif [ $# -eq 3 ]
then
num1=$1
incr=$2
num2=$3
/usr/bin/awk -v n1=$num1 -v n2=$num2 -v add=$incr 'BEGIN{ for(i=n1; i<=n2; i+=add) print i;}' | /usr/bin/sed -E '/e/s/^.+e.+$/0/'
fi
)
return 0
}
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