08-19-2008
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi everybody, first of all i am a new member in UNIX.com and this is my first post.
I am impressed with the amount of information a person can ever have in this forum, it is really great having something similiar; anyways let me tell you about the problem I am having, hope you will answer me.... (6 Replies)
Discussion started by: majeed73
6 Replies
2. Shell Programming and Scripting
Hi,
in my script I need to execute the following command:
query $id 456 432
but it waits for a RETURN character from keyboard and therefore, it fails. I tried something like:
query $id 456 432 << '\n'
but, i'ts clear it is not correct. Is there any way to do this?
Thxs. (0 Replies)
Discussion started by: luistid
0 Replies
3. Shell Programming and Scripting
while running a user inter-active program
how can we get the commands from a
file instead of the user?
is there anyway to permanently redirect content
of a file to standard input? (6 Replies)
Discussion started by: gfhgfnhhn
6 Replies
4. UNIX for Dummies Questions & Answers
There are two files named goody and good. Please look at their single line contents:-
$ cat goody
hi m goody
$ cat good
hi m good
1)
$ cat goody < good
hi m goody
When we give cat, a file to read from, standard input is ignored.
As such, the above operation will just display contents... (2 Replies)
Discussion started by: marconi
2 Replies
5. Shell Programming and Scripting
Hello,
I need help with a bash script that I try to improve. I could not find answer so far, maybe because I'm not to familiar with the terminology so feel free to correct my language.
I have a script that looks like:
NODES="node_a node_b node_c"
for NODE in $NODES
do
... (4 Replies)
Discussion started by: pn8830
4 Replies
6. Shell Programming and Scripting
All,
I have a requirement to write a script where I check for Input redirection when the script was executed, based on which I handle my logic. Below is the example:
my.script
#! /bin/ksh
# Not sure how to frame the if condition below
if ; then
echo "Input Redirected from a file"
... (7 Replies)
Discussion started by: bharath.gct
7 Replies
7. UNIX for Dummies Questions & Answers
Hello,
I'm new to Unix (working with OS X 10.8.5) and therefore at the beginning of my adventure. If I ask something stupid, then this is not intentional, but simple nescience. :rolleyes:
I have a problem with the redirection of text file content to echo. I was experimenting with redirection... (6 Replies)
Discussion started by: pseudo
6 Replies
8. UNIX for Dummies Questions & Answers
Can someone please explain when input redirection is necessary?
For example, "cat filename" and "cat< filename" produce the same result. I was told that if I need to bunzip a file that I should type "bunzip2<filename.bz2." However, if I omit the "<" I still get the same result. Can someone... (4 Replies)
Discussion started by: PTcharger
4 Replies
9. Shell Programming and Scripting
Hi,
#!/bin/bash
while ;
do
rm -f /tmp/pipe
mkfifo /tmp/pipe
./yuv4mpeg_to_v4l2 < /tmp/pipe &
mplayer tom_and_jerry.mp4 -vf scale=480:360 -vo yuv4mpeg:file=/tmp/pipe
sleep 65;
done
When I run this - after mplayer finishes playing video it says - Exiting... (End of... (2 Replies)
Discussion started by: ashokvpp
2 Replies
10. Shell Programming and Scripting
Hi,
when I try to redirect input and the command is described as a string within an array redirection does not work. why?
#!/bin/bash
dir=("tail < ./hello.txt")
tail < ./hello.txt #works
${dir} #does not work (2 Replies)
Discussion started by: heinzel
2 Replies
LEARN ABOUT HPUX
yppasswd
yppasswd(1) General Commands Manual yppasswd(1)
NAME
yppasswd - change login password in Network Information System (NIS)
SYNOPSIS
[name]
Remarks
The Network Information Service (NIS) was formerly known as Yellow Pages (YP). The functionality remains the same; only the name has
changed.
DESCRIPTION
changes or installs a password associated with the login name in the Network Information System (NIS). The NIS password can be different
from the one on your own machine. If name is omitted, it defaults to the name returned by (see getlogin(3C)).
prompts for the old NIS password (even if it does not exist), then twice for the new one. The old password must be entered correctly for
the change to take effect. Checks occur to ensure that the new password meets the following construction requirements.
o Only the first eight characters are significant.
o A password can be as few as four characters long if it contains
o at least one special character or
o a mixture of numeric, uppercase and lowercase letters.
o A password can be as few as five characters long if it contains a mixture of
o uppercase and lowercase letters or
o numeric and either uppercase or lowercase letters.
o A password must contain at least six characters if it contains only monocase letters.
All these rules except the first are relaxed if you try three times to enter an unacceptable new password. You cannot, however, enter a
null password.
Only the owner of the name or the superuser can change a password.
The Network Information System password daemon, must be running on the master NIS password server to change NIS passwords. See yppass-
wdd(1M).
WARNINGS
The password update protocol passes the old and new passwords to the master NIS server at once. Thus, if the old NIS password is incor-
rect, no notification is given until the new NIS password is successfully entered.
The password construction rules are different from those of the HP-UX command (see passwd(1)).
The root user's password cannot be changed using or Therefore, root users must change their password in the files database and then recon-
struct the NIS maps using the command. For more information on how to use the command, see ypmake(1M).
User applications that call this routine must be linked with For example,
AUTHOR
was developed by Sun Microsystems, Inc.
SEE ALSO
id(1), passwd(1), su(1), yppasswdd(1M), getlogin(3C), yppasswd(3N), ypfiles(4).
yppasswd(1)