Reading file mtime in UNIX in particular format (2013-06-25 09:04:32)

Question

hi i have this file on my UNIX box (SunOS 5.10).

-rwxr-xr-x   1 phnxep  siebel 917 Feb  1 02:52 crontest.sh

Here date and time are given like Feb1 02:52.Can i just read these values in UNIX for my file ignoring the rest of the details.In the required format-:

2017-02-1 02:52

And convert them to integer values later on???Please help guys i am really stuck on this.

Maxim Egorushkin · Accepted Answer · 2017-02-06T13:23:32.133

1

If you are using gnu ls, try

ls -l --time-style=full-iso

E.g.:

$ touch x
$ ls -l --time-style=full-iso x
-rw-r--r-- 1 max max 0 2017-02-06 13:18:56.498920000 +0000 x

If you are using Sun ls, try -E option, e.g. ls -E.

edited Feb 06 '17 at 13:23

answered Feb 06 '17 at 13:16

Maxim Egorushkin

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where should i specify the file name? – Randomguy Feb 06 '17 at 13:17
@TusharSharma At the end of the line. – Maxim Egorushkin Feb 06 '17 at 13:18
ls: illegal option -- time-style=full-iso usage: ls -1RaAdCxmnlhogrtuvVcpFbqisfHLeE@ [files].It says this.how to check i am using GNU or not? – Randomguy Feb 06 '17 at 13:21
For Solaris `ls` try `-E` option. – Maxim Egorushkin Feb 06 '17 at 13:22
Hey thanks sir it was really help full can you also tell me how can i convert them to integer values.after i use cut command and get them seperated?? – Randomguy Feb 06 '17 at 13:24
@TusharSharma Now that you are able to get the file timestamp in ISO format, you should be able to parse it and convert to the number of seconds since UNIX epoch. You may like to ask another question regarding parsing. – Maxim Egorushkin Feb 06 '17 at 13:28
ok Sir thanks a lot for your help.I will query again if i found any further issue. – Randomguy Feb 06 '17 at 13:31
hi sir can you tell me how can i convert my file creation date to an integer value . For ex i have a file called "abc.txt" with creation date (2017-02-01) . I have this value in a variable. Now how can i convert it to something like (20170201).Thanks – Randomguy Feb 07 '17 at 10:39
@TusharSharma Search for "parse timestamp", there are plenty of answers. – Maxim Egorushkin Feb 07 '17 at 10:42

Reading file mtime in UNIX in particular format (2013-06-25 09:04:32)

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