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compare which file is newer

compare which file is newer# Unix - 噫吁兮，危乎高哉

i*e2002-06-10 07:06

1 楼

how to compare, with a command or script, which file is newer:
one is in the local machine, another is in a remote machine.

e*s2002-06-10 07:06

2 楼

how do you define "newer"? based on created time?
modified time? file size? etc.

【在 i***e 的大作中提到】

: how to compare, with a command or script, which file is newer:
: one is in the local machine, another is in a remote machine.

i*e2002-06-10 07:06

3 楼

last modified time.

【在 e***s 的大作中提到】

: how do you define "newer"? based on created time?
: modified time? file size? etc.

j*y2002-06-10 07:06

4 楼

ls -t file1 file2
output:
the first file is newer
or ls -rt file1 file2
output:
the first file is older

【在 i***e 的大作中提到】

: how to compare, with a command or script, which file is newer:
: one is in the local machine, another is in a remote machine.

i*e2002-06-10 07:06

5 楼

i mean file1 and file2 are in different machines.

【在 j***y 的大作中提到】

: ls -t file1 file2
: output:
: the first file is newer
: or ls -rt file1 file2
: output:
: the first file is older

b*l2002-06-10 07:06

6 楼

ls -t -l file1; rsh ls -t -l file2

【在 i***e 的大作中提到】

: how to compare, with a command or script, which file is newer:
: one is in the local machine, another is in a remote machine.

i*e2002-06-10 07:06

7 楼

well, what i want to do is this:
if ["file1 in local machine" newer than "file2 in remote machine"]; then
scp -p file1 [email protected]_machine:file2
else
scp -p [email protected]_machine:file2 file1
fi
so, how to implement the test of condition? thanks!

【在 b*********l 的大作中提到】

: ls -t -l file1; rsh ls -t -l file2