List of files modified 1 hour before

问题:

Hi I want a list of files modified within 60 minutes.

bash-3.2$ find . -mmin 60 -type f
find: bad option -mmin
find: [-H | -L] path-list predicate-list
bash-3.2$ /usr/xpg4/bin/find . -mmin 60 -type f                                                                                                                                                          
/usr/xpg4/bin/find: bad option -mmin
/usr/xpg4/bin/find: [-H | -L] path-list predicate-list
bash-3.2$ 
utibbwdev1#uname -a
SunOS utibbwdev1 5.10 Generic_150400-13 sun4v sparc SUNW,T5240

I am getting the above error. My OS is sun version 5.10.

回答1:

You can do that using this command.

$ find . -mtime -1

where,

. is the search path

-mtime time parameter

-1 list files modified in last 1 hours

also

$ find . -amin -60

-amin time parameter (minute wise)

-60 list files modified in last 1 hours

Here is an output from my system:

回答2:

Find command can do that.

find .  -newermt "1 hour ago"

You can further filter it with -type f

回答3:

As you are on SunOS, probably you are not using GNU find, so -mmin option is not allowed. Try

find -mtime -1

to get files/dirs of modification time under (that's the meaning of the minus sign in front of the number) 1 hour from now. GNU finds makes it possible to ask for times in minutes as an extension to normal find.

Also, the man page is very useful, but perhaps, if you have the GNU findutils package installed on your system, you have to do some PATH adjustements before to get the correct find program called. Just look as GNU utils normally get installed under /opt/gnu directory and you'll need to put that directory in the PATH before the normal bin dirs. A good way to check this is to do

which find

that will tell you which find it is using and where in the filesystem it is located. A common mistake is to put man pages first in the MANPATH environment variable, but last in the PATH variable, so you get the manpage from GNU findutils package but execute the standard system command. find in SunOS comes from Berkeley Unix and is not related to GNU.

回答4:

For a POSIX compatible method you can make a temporary file with touch, using the time from date, after subtracting one hour with awk, and use find's -newer operand to compare files with the temporary file.

TIME=`date "+%Y %m %d %H %M" | awk '
    BEGIN{split("31 28 31 30 31 30 31 31 30 31 30 31",M)}
    {
        if ($4 == 0) { # hour underflow
            if ($3 == 1) { # day underflow
                if ($2 == 1) { # month underflow
                    $1--;
                    $2 = 12;
                } else $2--;
                if ($1 % 4 == 0 && $2 == 2) $3 = 29; # leap year
                else $3 = M[$2];
            } else $3--;
            $4 = 23;
        } else $4--;
        printf "%04u%02u%02u%02u%02u\n", $1, $2, $3, $4, $5;
    }'`
touch -t "$TIME" some-temporary-file
find . -type f -newer some-temporary-file
rm some-temporary-file

To get a temporary file name you can use a utility such as mktemp, you can specify a file, or you can append random numbers to a file name.

Quite a few versions of find have the -mmin extension, or something like it.

find . -type f -mmin -60

Some versions of date have a variable output.

FILE=`mktemp -t one-hour-ago-`
touch -t `date -v -1h +%Y%m%d%H%M` "$FILE"
find . -type f -newer "$FILE"
rm "$FILE"

And some versions of touch have adjustment flags.

FILE=`mktemp -t one-hour-ago-`
touch "$FILE"
touch -A -010000 "$FILE"
find . -type f -newer "$FILE"
rm "$FILE"