7 More Discussions You Might Find Interesting
1. OS X (Apple)
OSX 10.12.3, default bash terminal.
Consider this code and note it is calling 'sh' inside the code...
#!/bin/sh
echo '1\n2\n2\n3\n5' > /tmp/text
hexdump -C /tmp/text
/bin/echo '1\n2\n3\n4\n5' > /tmp/text
hexdump -C /tmp/text
Now view the interactive mode below, note the underlying shell is... (6 Replies)
Discussion started by: wisecracker
6 Replies
2. IP Networking
Ok, if youre reading this prepare yourself.(debian based os)
so im trying to do this routing with ip tables, i need to forward/SNAT traffic from 192.168.111.1 to 10.10.10.250, the 192.x.x.x ips are being shoved into a honeyd like program called inetsim so its offline, 10.10.10.125 is connected... (3 Replies)
Discussion started by: Shocco
3 Replies
3. Red Hat
I want to start by saying I already resolved my issue but I want to understand why I am seeing what I am seeing.
I have a server with a RAID controller two 500GB drives and six 600GB drives. The two 500GB drives are mirrored and have the OS installed on them. The six 600GB they wanted set as... (4 Replies)
Discussion started by: scotbuff
4 Replies
4. Shell Programming and Scripting
hello; Got a problem running monitoring scripts using sudo ssh.. Mgmt decided to take away root sudoers access.. so most of the scripts ran as:
sudo ssh $BOX ...
Now I need to run them as:
echo $my_pw | sudo -S -l my_user_id $BOX ...
I tried this but not working..
Any wisdom/tricks... (3 Replies)
Discussion started by: delphys
3 Replies
5. Shell Programming and Scripting
Hi,
First post here. I have something that may prove to be difficult.
I have the following files:
Example1.0.0.tar.gz
Example2.tar
Example3.zip
Example4.0.0.0.0.0.bzip2
I need to remove the file extensions and store as a variable so they look like this:
Example1.0.0
Example2... (3 Replies)
Discussion started by: Spadez
3 Replies
6. Shell Programming and Scripting
Although my sed skills are gradually developing, thanks in large part to this forum, I'm having a hard time dealing with pattern space and looping, which I suspect is what I'll need a better handle on to figure out my current issue, which is converting a multi line file like this:
... (4 Replies)
Discussion started by: tiggyboo
4 Replies
7. UNIX Desktop Questions & Answers
Help,
I have been stuck on this issue for weeks.
I am a unix noobie.
I have a very long string and within that string I am trying to get proc file names
ie
PROCNAME1=SOME_FILENAME_UPDTBASE.SQL
There is a space on either side.
I can't for the life of me peel out the proc name:... (13 Replies)
Discussion started by: owenian
13 Replies
umask(2) System Calls Manual umask(2)
NAME
umask - Sets and gets the value of the file creation mask
SYNOPSIS
#include <sys/types.h>
#include <sys/stat.h>
mode_t umask ( mode_t cmask );
STANDARDS
Interfaces documented on this reference page conform to industry standards as follows:
umask(): POSIX.1, XPG4, XPG4-UNIX
Refer to the standards(5) reference page for more information about industry standards and associated tags.
PARAMETERS
Specifies the value of the file mode creation mask.
DESCRIPTION
The umask() function sets the file mode creation mask of the process to the value of the cmask parameter and returns the previous value of
the mask. The cmask parameter is constructed by logically ORing file permission bits defined in the sys/mode.h header file.
Whenever a file is created (by the open(), mkdir(), or mknod() function), all file permission bits set in the file mode creation mask are
cleared in the mode of the created file. This clearing lets users restrict the default access to their files.
The mask is inherited by child processes.
RETURN VALUES
Upon successful completion, the previous value of the file mode creation mask is returned.
RELATED INFORMATION
Commands: chmod(1), mkdir(1), Bourne shell sh(1b), POSIX shell sh(1p), umask(1)
Functions: chmod(2), mkdir(2), mknod(2), open(2), stat(2)
Standards: standards(5)
delim off
umask(2)
