Re: changing time on a symlink
On Wed, Oct 28, 1998 at 07:28:43PM -0800, Salil Kumar wrote: Hi, How can we change the time on a sym link through a C program ? look at utime (man 2 utime)
Re: changing time on a symlink
ixx wrote: On Wed, Oct 28, 1998 at 07:28:43PM -0800, Salil Kumar wrote: Hi, How can we change the time on a sym link through a C program ? look at utime (man 2 utime) Hi,I think utime change the time for the file pointed by sym link. I need to change the time of symlink only. Any other suggestions ? -salil
Re: changing time on a symlink
Salil Kumar wrote: I need to change the time of symlink only. Any other suggestions ? I think the only way is to use the time/date hack. 1. remove the link 2. set the clock to when the link should be modified 3. recreate the link 4. reset the clock to current date/time. There are wery few syscalls that affects symbolic links besides symlink(), lstat() and readlink(). Of these symlink() is the only one that can modify the modification date, and only to the current date/time. --- Henrik Nordstrom
RE: Newbie: Searching sub directories for text
This works too:
find /dirname -exec grep -l 'whatever text' {} \;
-Original Message-
From: Glynn Clements [SMTP:[EMAIL PROTECTED]]
Sent: Wednesday, October 28, 1998 4:30 PM
To: Dave
Cc: [EMAIL PROTECTED]
Subject:Re: Newbie: Searching sub directories for text
Dave wrote:
How can I search a directory and all of its sub directories for a file
containing a specified text string.
Use find and [f]grep.
I know how to use grep to search a
single directory but is there a way to make it search all of the sub
directories too?
I tried using Find along with Grep:
find / -type f -print | xargs grep string_to_search_for
In general,
find / -type f -print0 | xargs -0 grep string_to_search_for
is preferable, as it will cope with filenames which contain spaces.
But I get the error message:
grep: warning: /proc/kcore: operation not supported by device
Don't search /proc. You can use
find / -path /proc -prune -o ...
to eliminate just /proc, or
find / -mount ...
to prevent find from crossing filesystem boundaries.
It trys to search files that grep can not deal with, generates error
messages and fills the screen up with junk. Is there a way to limit the
search to scripts, config files and source files?
Not easily. You would have to have to run `file' on each file that is
found, and only run grep if the output from file indicates that it is
suitable.
Maybe there is another program that I should be using??
Not really. There isn't a `is this a text file' utility as such.
--
Glynn Clements [EMAIL PROTECTED]
No Subject
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Re: changing time on a symlink
Henrik Nordstrom wrote: Salil Kumar wrote: I need to change the time of symlink only. Any other suggestions ? I think the only way is to use the time/date hack. 1. remove the link 2. set the clock to when the link should be modified 3. recreate the link 4. reset the clock to current date/time. Thanks for the suggestion, but If we change system time, and if the next CPU slice goesto some utility acting on system time, (cron jobs etc.) will not this solution work adversely ? Currenty I am working on a restore solution, I can restore all files correcty, but when I go back to change dates on the restored data, I cannot do it for symbolic links. There are wery few syscalls that affects symbolic links besides symlink(), lstat() and readlink(). Of these symlink() is the only one that can modify the modification date, and only to the current date/time. --- Henrik Nordstrom
Re: changing time on a symlink
Salil Kumar wrote: Thanks for the suggestion, but If we change system time, and if the next CPU slice goesto some utility acting on system time, (cron jobs etc.) will not this solution work adversely ? Yes. There are some major drawbacks from changing the system time. Currenty I am working on a restore solution, I can restore all files correcty, but when I go back to change dates on the restored data, I cannot do it for symbolic links. No-one can. Symbolic links always have the current date after a restore... --- Henrik Nordstrom
Re: changing time on a symlink
Salil Kumar wrote: I need to change the time of symlink only. Any other suggestions ? I think the only way is to use the time/date hack. 1. remove the link 2. set the clock to when the link should be modified 3. recreate the link 4. reset the clock to current date/time. Thanks for the suggestion, but If we change system time, and if the next CPU slice goesto some utility acting on system time, (cron jobs etc.) will not this solution work adversely ? Yes. Changing the system time is a bad idea. Currenty I am working on a restore solution, I can restore all files correcty, but when I go back to change dates on the restored data, I cannot do it for symbolic links. No, you can't. -- Glynn Clements [EMAIL PROTECTED]
