I'm attempting to populate an array in ksh using the following command:
set -A $(SELECT_INVOICE | sed '/^$/d')
SELECT_INVOICE is a function that executes the SQL query.
Problem: Some of the invoice numbers have alpha characters with spaces(example: OVEN MICRO). The Korn shell is treating... (1 Reply)
Hello,
I'm currently messing around with arrays for the first time in scripting (Unix Korn Shell). All I'm trying to do right now before I make things complicated is read through and print out to screen whether the read file is or is not a directory.
Here is my directory:
ls -l
total... (5 Replies)
I have a script that contains
#!/usr/bin/ksh
set -A X 'hallo' 'world'
echo ${X}
echo ${X}
when I execute it I get an errror message
sh ./test.ksh
./test.ksh: -A: bad option(s)
but if I do this at the command prompt I am able to create it
set -A myarray '1' '2' '3'
echo ${myarray}... (4 Replies)
I have a korn shell script that reads a file with just one column in the file. If the file has more than 5 entries it is split using split -5. This means that is we have 15 entries I will end up with 3 files with 5 entries/lines in each and if I have 23 entries I will end up with 5 files with the... (2 Replies)
Hi,
I am trying to define number of array based on constant derived during execution phase of a script. Here is what i am trying..
#First Part, Get LUN input from User
lun_count=4
count=0
set -A my_lun
while :
do
while ]; do
read L?"Enter Lun "$count" Number:"
... (2 Replies)
I have a text file with several key words that I am trying to isolate. I have grepped for the unknowns in the text file, but each unknown has a corresponding location. I have created an array that holds all the unknowns and another array that holds all of the locations and compares them based on... (12 Replies)
Hi all,
Not sure if this should be in the programming forum, but I believe it will get more response under the Shell Programming and Scripting FORUM.
Am trying to write a customized df script in Perl and need some help with regards to using arrays and file handlers.
At the moment am... (3 Replies)
In order to use the shellcurses functions described at:
Shell Curses function library
I am learning about ksh, which has arrays. My trusty Kochan & Wood book says that for any Korn Shell array AR :
${AR
} expands to all the defined array elements, and
${#AR
} expands to the number... (3 Replies)
Hi,
I have one array created and some values are there in ksh. I want to append some other values to it based on some condition in if statement.
#!/bin/ksh
echo "---------------------------------------------------"
set -A ipaddr_arr $(egrep -v '^#|^::|^$' /etc/hosts |awk '{print $1}'... (2 Replies)
Discussion started by: sanzee007
2 Replies
LEARN ABOUT DEBIAN
sulogin
SULOGIN(8) Linux System Administrator's Manual SULOGIN(8)NAME
sulogin - Single-user login
SYNOPSIS
sulogin [ -e ] [ -p ] [ -t SECONDS ] [ TTY ]
DESCRIPTION
sulogin is invoked by init(8) when the system goes into single user mode. (This is done through an entry in inittab(5).) Init also tries
to execute sulogin when the boot loader (e.g., grub(8)) passes it the -b option.
The user is prompted
Give root password for system maintenance
(or type Control-D for normal startup):
If the root account is locked, no password prompt is displayed and sulogin behaves as if the correct password were entered.
sulogin will be connected to the current terminal, or to the optional device that can be specified on the command line (typically /dev/con-
sole).
If the -t option is used then the program only waits the given number of seconds for user input.
If the -p option is used then the single-user shell is invoked with a dash as the first character in argv[0]. This causes the shell
process to behave as a login shell. The default is not to do this, so that the shell will not read /etc/profile or $HOME/.profile at
startup.
After the user exits the single-user shell, or presses control-D at the prompt, the system will (continue to) boot to the default runlevel.
ENVIRONMENT VARIABLES
sulogin looks for the environment variable SUSHELL or sushell to determine what shell to start. If the environment variable is not set, it
will try to execute root's shell from /etc/passwd. If that fails it will fall back to /bin/sh.
This is very valuable together with the -b option to init. To boot the system into single user mode, with the root file system mounted
read/write, using a special "fail safe" shell that is statically linked (this example is valid for the LILO bootprompt)
boot: linux -b rw sushell=/sbin/sash
FALLBACK METHODS
sulogin checks the root password using the standard method (getpwnam) first. Then, if the -e option was specified, sulogin examines these
files directly to find the root password:
/etc/passwd,
/etc/shadow (if present)
If they are damaged or nonexistent, sulogin will start a root shell without asking for a password. Only use the -e option if you are sure
the console is physically protected against unauthorized access.
AUTHOR
Miquel van Smoorenburg <miquels@cistron.nl>
SEE ALSO init(8), inittab(5).
17 Jan 2006 SULOGIN(8)