It redirects the standard input to the controlling terminal inside the loop:
In this way the program vimdiff reads the user input instead of the stream coming from the pipe.
Hi all,
In a while loop, like below...
while read line
do
read choice
case $choice in
1)
echo "xxx"
esac
done < file
why I can't run the read choice???? (3 Replies)
Hi all
Does anyone have a script that will allow me to stop inside a while read loop.
I want to pause the loop until a enter is pressed.
e.g.
While read line
do
echo something
if LINECOUNT > 40
then
read ENTER?"PRESS ENTER TO CONT..."
... (3 Replies)
hi,
i have an existing ftp script that needs to be translated to SFTP so i have to use expect script to automate the login to the remote server.
Now im facing with a problem becaise i have at least 50 files to be renamed ont he remote server. It's a hassle to hardcode every single command... (1 Reply)
Hi there
I want to ask to a user something about each line of a file. This is my code:
#cat test.txt
first line
second line
third line
#cat test.sh
#!/bin/ksh
read_write () {
echo "Do you want to print the line (YES/NO)?\n"
read TEST
case ${TEST} in
YES) return 0;;
... (3 Replies)
This took me quite awhile to find so I wanted to share this with other people.
To switch windows in vimdiff or
to navigate windows in vimdiff or
to change windows in vimdiff try the following:
The ":vertical" command can be inserted before another command that
splits a window.
... (0 Replies)
Hi,
I am reading file records inside a while loop,
and want to update the record when certain condition is met.
How can I update a file while being read?
I want to avoid using temporary files, copy, rename, ...
while IFS=',' read -r f1 f2
do
function(f1,f2)
if
then
<add... (1 Reply)
Hi,
This query is a part of a much more lengthy script.
I wish to look for all the files in a folder named "data" which in this case has two files i.e. plan.war and agent.properties. For all the files found under data I wish to ask the user as to where they wish copy the files to.
Below,... (14 Replies)
Hi Experts,
Need your guidance for case statement. I tried many way but no success yet.Now my existing code is doing something like below. Each Line of the input file contains one test case.#!/bin/bash
FILE=$1
while read LINE; do
do COMMAND
done < $FILE
Now I want to modify the code... (6 Replies)
Discussion started by: pradyumnajpn10
6 Replies
LEARN ABOUT SUSE
tty
TTY(4) Linux Programmer's Manual TTY(4)NAME
tty - controlling terminal
DESCRIPTION
The file /dev/tty is a character file with major number 5 and minor number 0, usually of mode 0666 and owner.group root.tty. It is a syn-
onym for the controlling terminal of a process, if any.
In addition to the ioctl(2) requests supported by the device that tty refers to, the ioctl(2) request TIOCNOTTY is supported.
TIOCNOTTY
Detach the calling process from its controlling terminal.
If the process is the session leader, then SIGHUP and SIGCONT signals are sent to the foreground process group and all processes in the
current session lose their controlling tty.
This ioctl(2) call only works on file descriptors connected to /dev/tty. It is used by daemon processes when they are invoked by a user at
a terminal. The process attempts to open /dev/tty. If the open succeeds, it detaches itself from the terminal by using TIOCNOTTY, while
if the open fails, it is obviously not attached to a terminal and does not need to detach itself.
FILES
/dev/tty
SEE ALSO chown(1), mknod(1), ioctl(2), termios(3), console(4), tty_ioctl(4), ttyS(4), agetty(8), mingetty(8)COLOPHON
This page is part of release 3.25 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 2003-04-07 TTY(4)