10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Greetings,
After a few hours of trial and error, I decide to ask for some help.
I am new to AWK and shell script, so please don't laugh :p
I made the below script, to gather data from some logs and have the output into a CSV file :
#!/bin/sh
#Script to collect Errors
... (9 Replies)
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2. UNIX for Dummies Questions & Answers
I need my code to compare two different files that are in two completely different directories, How can I do this?
So for example, my code will look at file1 which is in my home directory, and compare the files with those from file2 that is in /abc/adf/adr/afc/adf/file2... does that make sense? (1 Reply)
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3. UNIX for Dummies Questions & Answers
Hi,
A file is transferred from a Windows server(say username : user1) to Unix server via ftp.
In unix, the permission of the file for a user, say user2 will be "-rw-r-----". Since the user1 is the owner of the file, user2 is not able to change the file permission using chmod.
Is there... (5 Replies)
Discussion started by: merin
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4. UNIX for Dummies Questions & Answers
Can any one tell me is there any command to find out who changed the permission of a file Or is there any log file so that i can find out who has changed the permission of a file?
Thanks in Advance:) (7 Replies)
Discussion started by: Uttamnsd
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5. UNIX for Dummies Questions & Answers
As I understand the file permissions in UNIX is basically
Owner, group, others
Lets assume scott user who's primary group is dev creates a file called test.dat and then grants some privileges on that file...
scott@unix-host> echo "this is a test" > test.dat
scott@unix-host> chmod 640... (4 Replies)
Discussion started by: luft
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6. Shell Programming and Scripting
While executing a script, I am not being able to able to create a file as the file with the same name already exists. That existing file is not getting overwritten as I am not the owner of the file. So, Neither am I able to rename the file nor delete the existing file, so as to get my file created.... (2 Replies)
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7. Shell Programming and Scripting
In my script, I am creating a file ----> then writting one line (i.e. Timestamp) ----> then FTP'ing. The same script can be executed by many other users.
While other users executing this script, they couldn't Over write this one line (i.e. Timestamp)
My expectation
So I wanted to create a... (2 Replies)
Discussion started by: sbmk_design
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8. UNIX for Advanced & Expert Users
I am trying to FTP files from windows to UNIX (IBM AIX). After having sent the files to unix server. Permisssion of the files becomes 640 (rw-r-----). I have to manually login to unix and do chmod 644 on the folder to give it permission. Is it possible that the files automaically be set to 644 on... (2 Replies)
Discussion started by: puspendu.das.in
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9. Shell Programming and Scripting
Hi,
Please provide your inputs..
Thanks in Advance,
Mansa (1 Reply)
Discussion started by: mansa
1 Replies
10. Shell Programming and Scripting
Hello all -
I have two systems.
1) Linux box running Redhat 8.0
2) Tru64 box running V4.0f
From the Linux box I am remotely mounting a directory (nfs mount) that resides on the Tru64 machine.
The directory that is nfs mounted contains two subdirectories:
my_dir1
my_dir2
I want... (3 Replies)
Discussion started by: Heron
3 Replies
lsMode(3pm) User Contributed Perl Documentation lsMode(3pm)
NAME
Stat::lsMode - format file modes like the "ls -l" command does
SYNOPSIS
use Stat::lsMode;
$mode = (stat $file)[2];
$permissions = format_mode($mode);
# $permissions is now something like `drwxr-xr-x'
$permissions = file_mode($file); # Same as above
$permissions = format_perms(0644); # Produces just 'rw-r--r--'
$permissions = format_perms(644); # This generates a warning message:
# mode 644 is very surprising. Perhaps you meant 0644...
Stat::lsMode->novice(0); # Disable warning messages
DESCRIPTION
"Stat::lsMode" generates mode and permission strings that look like the ones generated by the Unix "ls -l" command. For example, a regular
file that is readable by everyone and writable only by its owner has the mode string "-rw-r--r--". "Stat::lsMode" will either examine the
file and produce the right mode string for you, or you can pass it the mode that you get back from Perl's "stat" call.
"format_mode"
Given a mode number (such as the third element of the list returned by "stat"), return the appopriate ten-character mode string as it would
have been generated by "ls -l". For example, consider a directory that is readable and searchable by everyone, and also writable by its
owner. Such a directory will have mode 040755. When passed this value, "format_mode" will return the string "drwxr-xr-x".
If "format_mode" is passed a permission number like 0755, it will return a nine-character string insted, with no leading character to say
what the file type is. For example, "format_mode(0755)" will return just "rwxr-xr-x", without the leading "d".
"file_mode"
Given a filename, do "lstat" on the file to determine the mode, and return the mode, formatted as above.
Novice Operation Mode
A common mistake when dealing with permission modes is to use 644 where you meant to use 0644. Every permission has a numeric
representation, but the representation only makes sense when you write the number in octal. The decimal number 644 corresponds to a
permission setting, but not the one you think. If you write it in octal you get 01204, which corresponds to the unlikely permissions
"-w----r-T", not to "rw-r--r--".
The appearance of the bizarre permission "-w----r-T" in a program is almost a sure sign that someone used 644 when they meant to use 0644.
By default, this module will detect the use of such unlikely permissions and issue a warning if you try to format them. To disable these
warnings, use
Stat::lsMode->novice(0); # disable novice mode
Stat::lsMode->novice(1); # enable novice mode again
The surprising permissions that are diagnosed by this mode are:
111 => --xr-xrwx
400 => rw--w----
440 => rw-rwx---
444 => rw-rwxr--
551 => ---r--rwt
600 => --x-wx--T
640 => -w------T
644 => -w----r-T
660 => -w--w-r-T
664 => -w--wx--T
666 => -w--wx-wT
700 => -w-rwxr-T
711 => -wx---rwt
750 => -wxr-xrwT
751 => -wxr-xrwt
751 => -wxr-xrwt
755 => -wxrw--wt
770 => r------wT
771 => r------wt
775 => r-----rwt
777 => r----x--t
Of these, only 400 is remotely plausible.
BUGS
As far as I know, the precise definition of the mode bits is portable between varieties of Unix. The module should, however, examine
"stat.h" or use some other method to find out if there are any local variations, because Unix being Unix, someone somewhere probably does
it differently.
Maybe it "file_mode" should have an option that says that if the file is a symlink, to format the mode of the pointed to file instead of
the mode of the link itself, the way "ls -Ll" does.
SEE ALSO
o "http://www.plover.com/~mjd/perl/lsMode/".
o ls
o chmod
o stat
AUTHOR
Mark-Jason Dominus ("mjd-perl-lsmode@plover.com").
perl v5.10.1 1998-04-20 lsMode(3pm)