02-03-2011
Your a real master. Thank you so much ...
9 More Discussions You Might Find Interesting
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Dear,
Have any command which can minimize the ksh windows?
I use telnet to connect to server.
Wilson (7 Replies)
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To all experts, I need some advice on how I can enter a unix command which is equivalent to the action of minimizing/maximizing an active xterm window. How can I do this (i) when control is in the active xterm window to be minimized/maximized , & (ii) when control is in a xterm window which runs... (0 Replies)
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Hi
I would like to ask if someone try or is there any key binding about the conky apps..I would like to know if it possible to key bind the conky running in desktop so that everytime i want to see the running conkyrc on the desktop there is no need for me to minimize the open windows inorder... (0 Replies)
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4. Shell Programming and Scripting
my requirement is,
consider a file output
cat output
blah sdjfhjkd jsdfhjksdh
sdfs 23423 sdfsdf sdf"sdfsdf"sdfsdf"""""dsf
hellow there
this doesnt look good
et cetc etc
etcetera
i want to replace a line of line number 4 ("this doesnt look good") with some other line
... (3 Replies)
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5. Shell Programming and Scripting
here is what i want to achieve.. i have a file with below contents
cat fileName
blah blah blah
.
.DROP this
REJECT that
.
--sport 7800 -j REJECT --reject-with icmp-port-unreachable
--dport 7800 -j REJECT --reject-with icmp-port-unreachable
.
.
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more blah blah blah
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Hi all,
How can i display the middle line of a file using a single line command? (6 Replies)
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7. Shell Programming and Scripting
Sed command to replace a line in a file using line number from the output of a pipe.
Is it possible to replace a whole line piped from someother command into a file at paritcular line...
here is some basic execution flow..
the line number is 412
lineNo=412
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8. Shell Programming and Scripting
Hi, Below is the script that I came up with but looking to see if there is a more appropriate way to achieve this by reducing number of "for" loops or something.
Regards,
mbak
#!/usr/bin/ksh
status=missing
for disk in `lspv | awk '{print $1}'`
do
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9. Shell Programming and Scripting
I am looking for help in processing of those options: '-n' or '-p'
I understand what they do and how to use them.
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I did try it and -n works on 2 files.
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PTS(4) Linux Programmer's Manual PTS(4)
NAME
ptmx, pts - pseudo-terminal master and slave
DESCRIPTION
The file /dev/ptmx is a character file with major number 5 and minor number 2, usually of mode 0666 and owner.group of root.root. It is
used to create a pseudo-terminal master and slave pair.
When a process opens /dev/ptmx, it gets a file descriptor for a pseudo-terminal master (PTM), and a pseudo-terminal slave (PTS) device is
created in the /dev/pts directory. Each file descriptor obtained by opening /dev/ptmx is an independent PTM with its own associated PTS,
whose path can be found by passing the descriptor to ptsname(3).
Before opening the pseudo-terminal slave, you must pass the master's file descriptor to grantpt(3) and unlockpt(3).
Once both the pseudo-terminal master and slave are open, the slave provides processes with an interface that is identical to that of a real
terminal.
Data written to the slave is presented on the master descriptor as input. Data written to the master is presented to the slave as input.
In practice, pseudo-terminals are used for implementing terminal emulators such as xterm(1), in which data read from the pseudo-terminal
master is interpreted by the application in the same way a real terminal would interpret the data, and for implementing remote-login pro-
grams such as sshd(8), in which data read from the pseudo-terminal master is sent across the network to a client program that is connected
to a terminal or terminal emulator.
Pseudo-terminals can also be used to send input to programs that normally refuse to read input from pipes (such as su(1), and passwd(1)).
FILES
/dev/ptmx, /dev/pts/*
NOTES
The Linux support for the above (known as Unix98 pty naming) is done using the devpts file system, that should be mounted on /dev/pts.
Before this Unix98 scheme, master ptys were called /dev/ptyp0, ... and slave ptys /dev/ttyp0, ... and one needed lots of preallocated
device nodes.
SEE ALSO
getpt(3), grantpt(3), ptsname(3), unlockpt(3), pty(7)
COLOPHON
This page is part of release 3.27 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
Linux 2002-10-09 PTS(4)