UNIX Sun Ultra60 5.5.1
Hello everybody, I have a problem that seems simple but turns out to be complex (for me at least). My program needs to open a directory (this part is easy), scan each filename and determine whether or not a file with the suffix (.07) exists. So the program would return... (5 Replies)
i have a teat file having data like
one 12/3
two 23/09
three 12/12
now from another script i want to read one line at a time ,cut field one and two in two separate variable ,compare field1 with another variable
but outside the loop .If i found a match i want to take from user the value... (2 Replies)
Hi I am trying read in side a do statement
but it is not working it is just printing abc before read but not stopping in abc for user input
Can anybody please help
#!/usr/bin/ksh
cat sample_file | while read ln_source3
do
param=`echo $ln_source3 | nawk... (1 Reply)
I'm trying to understand if it's possible to create a set of variables that are numbered based on another variable (using eval) in a loop, and then call on it before the loop ends.
As an example I've written a script called question (The fist command is to show what is the contents of the... (2 Replies)
I know I should be able to see a way of doing this easily, but my brain just won't engage.
I have a script working on an embedded device that checks to see if an item is in a blacklist before performing some actions.
At the moment the code reads thus....
while read BLACKLIST ; do
... (7 Replies)
Hi all
Sorry for the basic question, but i am writing a shell script to get around a slightly flaky binary that ships with one of our servers. This particular utility randomly generates the correct information and could work first time or may work on the 12th or 100th attempt etc !.... (4 Replies)
Learning, stumbling! My progress in shell scripting is slow. Now I have this doubt:
I have the following file (users.txt):
AU0909,on
AU0309,off
AU0209,on
AU0109,off
And this file (userson.txt)
AU0909
AU0209
AU0109
AU0309
I just want to set those users on userson.txt to "off" in... (14 Replies)
I'm taking a unix class and need to countdown to 0 from whatever number the user inputs. I know how to do this with a while or until loop but using the for loop is throwing me off....
I know I can use an if-then statement in my for loop but can I include a while loop in my for loop? (3 Replies)
Hello,
I'm using RHEL 5.1 with bash. How to handle "read" inside while loop reading every line? Please see below:
# cat /tmp/passwd_sample
CARRJ12:qVSn4ja4mFA72,..:20021:125:JULIAN CARR:/home/everyone:/bin/bash
HERCOT01:NK/3j2ZB4ZC7Q:20022:125:TOM HERCOCK:/home/everyone:/bin/bash... (4 Replies)
Hi Team,
Not getting the file output inside my email which i am sending from unix box. . Please refer the below code :
#!/bin/sh
{
sleep 5
echo ehlo 10.56.185.13
sleep 3
echo mail from: oraairtel@CNDBMUREAPZP02.localdomain
sleep 3
echo rcpt to: saurabhtripathi@anniksystems.com... (1 Reply)
Discussion started by: tripathi1990
1 Replies
LEARN ABOUT REDHAT
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() requests supported by the device that tty refers to, the following ioctl() request is supported:
TIOCNOTTY
Detach the current process from its controlling terminal, and remove it from its current process group, without attaching it to a
new process group (that is, set its process group ID to zero). This ioctl() call only works on file descriptors connected to
/dev/tty; this 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 mknod(1), chown(1), getty(1), termios(3), console(4), ttys(4)Linux 1992-01-21 TTY(4)