find command:
The make the /usr/local/bin/makelink file as mentioned above. (If you don't have access permissions, create $HOME/bin and put it in there; change the find command appropriately.)
The missing part in the script should be something like this:
This will work for just about any number of files. Example:
Perl does two substitutions (stuff between s/.../. The first looks for a period NOT preceded by a digit that is followed by a right-bracket. If it finds such a string, it replaces it with [0]. The next looks for a number inside brackets and followed by a period. If it finds such a thing (which it will if the previous step succeeded, or as it must if the previous step failed) it replaces the number found with the next higher number (just adds 1).
The output is sent to the shell which stores that output in the variable "file". The next iteration of the while loop should fail, and then the ln command will do its thing.
Hi all!
I'd like to know the differences between hard links and soft links. I've already read the ln manpage, but i'm not quite sure of what i understood.
Does a hard link sort of copy the file to a new name, give it the same inode number and same rights?
What exactly should I do to do this:... (3 Replies)
Hi
PLease let me know the usage of Hard Link vs Soft Link
i.e what is the basic difference and what happens when one file is changed or deleted in both the cases???
thanks (3 Replies)
Hi Experts,
Please help me out to find out difference between a hard link and a soft link.
I am new in unix plz help me with some example commands ( for creating such links).
Regards
S.Kamakshi :) (2 Replies)
I was wondering if it was at all possible to change the timestamp of a soft link. I want to change it to a time in the past before it was created.
Sceanrio:
In a directory i have a number of softlinks whih point to files, a script processes these files oldest first bassed on the time the... (8 Replies)
Hi ,
When installing oracle software a set of directories are created under
the home directories.
Since the home directory is usually not big , i would like to create a soft link
from the home directory to mount point with alot of free space , that way the logs will not be wriiten under the... (1 Reply)
hi
i have create a soft link using below command.
ln -s <filename> <dirmane>where file name i use is t1 and dir name was t2.
i deleted the dir t2 using command rm -rf to remove the soft link .
however again i create a file a using the name t2 and when i just try to link t1 to t2 ... (1 Reply)
I did restore from netbackup for root file system on separate slice instead of corrupted one. After restoration I found there are number of soft link issues lie
e.g
libabcxyx > /mnt/usr/lib
it should be
libabcxyz > /usr/lib
does any have solution to change symbolic link changed in... (1 Reply)
Hi All,
I tried creating a soft link with the file itself. It got created successfully.
bash-3.2$ ls -l a
lrwxrwxrwx 1 ebrigup other 1 Oct 5 19:14 a -> a
bash-3.2$
Can anyone explain what is the possible use of it. I dont see any except practically wasting an inode... (2 Replies)
Discussion started by: brij123
2 Replies
LEARN ABOUT ULTRIX
crontab
crontab(5) File Formats Manual crontab(5)Name
crontab - clock daemon table file
Syntax
/usr/lib/crontab
Description
The command executes at specified dates and times according to the instructions in the file. The file consists of lines with six fields
each. The format for a line is as follows:
minute hour day month weekday command
The following list defines each field in the line:
minute (0-59) The exact minute that the command sequence executes.
hour (0-23) The hour of the day that the command sequence executes.
day (1-31) The day of the month that the command sequence executes.
month (1-12) The month of the year that the command sequence executes.
weekday (1-7) The day of the week that the command sequence executes. Monday = 1, Tuesday = 2, and so forth.
command The complete command sequence variable that is to be executed. Note that the command string must conform to Bourne shell
syntax.
The first five integer fields may be specified as follows:
o A single number in the specified range
o Two numbers separated by a minus, meaning a range inclusive
o A list of numbers separated by commas, meaning any of the numbers
o An asterisk meaning all legal values
The sixth field is a string that is executed by the shell at the specified times. A percent sign (%) in this field is translated to a new-
line character. Only the first line of the command field, up to a percent sign (%) or end of line, is executed by the shell. The other
lines are made available to the command as standard input.
Examples
The following example is part of a file:
# periodic things
0,15,30,45 * * * * (echo '^M' `date`; echo '') >/dev/console
0,15,30,45 * * * * /usr/lib/atrun
# daily stuff
5 4 * * * sh /usr/adm/newsyslog
15 4 * * * ( cd /usr/preserve; find . -mtime +7 -a -exec rm -f {} ; )
20 4 * * * find /usr/msgs -mtime +21 -a ! -perm 444 -a ! -name bounds
-a -exec rm -f {} ;
# NOTE: The above line is wrapped.
# local cleanups
30 4 * * * find /usr/spool/mqueue -type f -mtime +5 -name df-exec rm {} ;
35 4 * * * find /usr/spool/mqueue -type f -mtime +5 -name tf-exec rm {} ;
40 4 * * * find /usr/spool/rwho -type f -mtime +21 -exec rm {} ;
#
# redirecting error output
0 17 * * 1,3,5 /bin/tar -cv /usr/sysads/smith > /dev/console 2>&1
#
FilesSee Alsosh(1), cron(8)
Guide to System Environment Setup
crontab(5)