01-09-2015
Hi,
the application handles somethings and all users allowed to run the application should be able to change the date and time. So, when the file is created, the owner is one, but I need to update the date and time, according to some rules on the application, and the solution was to use the touch command.Note: everyone that is allowed to run the application, belongs to the same group.
user1 - group app1
user2 - group app1
The process:
user1 creates a file - xxx.txt, today - 20150109 10:10....
tomorrow, the user2 running the application, for example, he accesses the file xxx.txt by the application, so, for my control and my reason, I need to change the date and time. note: if the user1 tries to read the file xxx.txt, it works - the touch command, because the owner is the same.
today, the application issues the touch command with 2 parameters: the date/time and the folder+filename. (parameters: 201501100830 /xxx/yyy/zzz/xxx.txt), the final command is: touch -c -t 201501100830 /xxx/yyy/zzz/xxx.txt
If the solution is to run as root, I will need to do it. Of course, if there is other way to do it, and with safety, I would like to know,
One way to use your script, considering dynamic user, is the application read before the owner, and instead of use the touch command, it would be used your script with 3 parameters: the owner, the date/time and the folder+filename.
would it be a solution? on sudo statement in your script, would the password be requested? if so, it would be not the solution. I need to avoid any interactive session.
if I understood the idea of your script, the folder where the script will be stored, it will be always the same, but the folder and the filename where the date/time will be changed, not.
Please, let me know if it is clear and if there would be a solution for me.
tks.
9 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Dear Expert,
Is there a command to do that in Unix?
In such a way that we don't need to actually "write" or
modified the content.
-- monkfan (4 Replies)
Discussion started by: monkfan
4 Replies
2. Shell Programming and Scripting
i want to find the files which are modified in last 30 to 120 minutes
i am using "find . -mmin +30 -mmin -120 "
it is giving me the error
find: bad option -mmin
find: path-list predicate-list
can somebody help me out .
Thank you (5 Replies)
Discussion started by: Prat007
5 Replies
3. Shell Programming and Scripting
Hey guy,
how to make the log.txt file and record date and time when ls, touch and find command run?
Thanks
Boly (13 Replies)
Discussion started by: chenboly
13 Replies
4. UNIX for Dummies Questions & Answers
Hi,
I am reciveing files from a remote system on my linux box. These files are named based on time, which I can use to 'touch' the time .
I can access/modify these files using my id. but when I tried touching time using my id I am getting error;
touch -t 1001261234 1001261234_job2333... (15 Replies)
Discussion started by: rajivbravo
15 Replies
5. UNIX for Advanced & Expert Users
Hello Everyone
I am running a Sunos 5.10 Generic_138888-02 sun4u sparc SUNW,SPARC-Enterprise machine with more than one virtual servers are on this box. My question is possable to change the date and time on the virtual server without change the time on the main server?
Thanks
Peter (4 Replies)
Discussion started by: Peterh
4 Replies
6. Linux
Hi guys,
Hope one of you guys can sort this out for me.
I first noticed this when users were uploading files from our website to our server and the time uploaded was +18 hours ahead of the current time. At first I assumed this was an issue with the coding, but didn't think it was likely as we... (2 Replies)
Discussion started by: markn86
2 Replies
7. Shell Programming and Scripting
Hi,
I wish to change time stamp of a directory with all its subdirectories and files on server.
I am able to find following two ways but want to know which will be the better one. I have not tried anyone of them because I am not sure if it can effect my data:
find * -type d -exec touch... (5 Replies)
Discussion started by: bioinfo
5 Replies
8. UNIX for Advanced & Expert Users
Here is the part of the script: I have modified the file name.:)
SSFILE=${My_HOME_DIR}/log/my_file_ss.log
export MM=`date '+%m'`
export DD=`date '+%d'`
export HH=`date '+%H'`
export MIN=`date '+%M'`
export HOURAGO=`echo ${HH} -1 |bc `
echo $HOURAGO
export TTIME=${MM}${DD}${HOURAGO}00... (5 Replies)
Discussion started by: N1a_Raider
5 Replies
9. SCO
I am using SCO Unix System V/386 Release 3.2v4.2 in some legacy machine.
I find that when I change the date time of the system, it will sometimes restart to the scologin page
It seems to be related to the X11 because other sessions (not scologin session) will not be affected.
Is there... (10 Replies)
Discussion started by: dannychan
10 Replies
xstr(1) User Commands xstr(1)
NAME
xstr - extract strings from C programs to implement shared strings
SYNOPSIS
xstr -c filename [-v] [-l array]
xstr [-l array]
xstr filename [-v] [-l array]
DESCRIPTION
xstr maintains a file called strings into which strings in component parts of a large program are hashed. These strings are replaced with
references to this common area. This serves to implement shared constant strings, which are most useful if they are also read-only.
The command:
example% xstr -c filename
extracts the strings from the C source in name, replacing string references by expressions of the form &xstr[number] for some number.
An appropriate declaration of xstr is prepended to the file. The resulting C text is placed in the file x.c, to then be compiled. The
strings from this file are placed in the strings data base if they are not there already. Repeated strings and strings which are suffixes
of existing strings do not cause changes to the data base.
After all components of a large program have been compiled, a file declaring the common xstr space called xs.c can be created by a command
of the form:
example% xstr
This xs.c file should then be compiled and loaded with the rest of the program. If possible, the array can be made read-only (shared) sav-
ing space and swap overhead.
xstr can also be used on a single file. A command:
example% xstr filename
creates files x.c and xs.c as before, without using or affecting any strings file in the same directory.
It may be useful to run xstr after the C preprocessor if any macro definitions yield strings or if there is conditional code which contains
strings which may not, in fact, be needed. xstr reads from the standard input when the argument `-' is given. An appropriate command
sequence for running xstr after the C preprocessor is:
example% cc -E name.c | xstr -c -
example% cc -c x.c
example% mv x.o name.o
xstr does not touch the file strings unless new items are added; thus make(1S) can avoid remaking xs.o unless truly necessary.
OPTIONS
-c filename Take C source text from filename.
-v Verbose: display a progress report indicating where new or duplicate strings were found.
-l array Specify the named array in program references to abstracted strings. The default array name is xstr.
FILES
strings data base of strings
x.c massaged C source
xs.c C source for definition of array "xstr*(rq
/tmp/xs* temp file when xstr filename doesn't touch strings
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO
make(1S), attributes(5)
BUGS
If a string is a suffix of another string in the data base, but the shorter string is seen first by xstr both strings will be placed in the
data base, when just placing the longer one there would do.
NOTES
Be aware that xstr indiscriminately replaces all strings with expressions of the form &xstr[number] regardless of the way the original C
code might have used the string. For example, you will encounter a problem with code that uses sizeof() to determine the length of a lit-
eral string because xstr will replace the literal string with a pointer that most likely will have a different size than the string's. To
circumvent this problem:
o use strlen() instead of sizeof(); note that sizeof() returns the size of the array (including the null byte at the end), whereas
strlen() doesn't count the null byte. The equivalent of sizeof("xxx") really is (strlen("xxx"))+1.
o use #define for operands of sizeof() and use the define'd version. xstr ignores #define statements. Make sure you run xstr on file-
name before you run it on the preprocessor.
You will also encounter a problem when declaring an initialized character array of the form
char x[] = "xxx";
xstr will replace xxx with an expression of the form &xstr[number] which will not compile. To circumvent this problem, use static char *x
= "xxx" instead of static char x[] = "xxx".
SunOS 5.10 14 Sep 1992 xstr(1)