Regarding Q2, this depends on which shell you are using. It also depends on what an integer is. If 123 +456 -789 all count as integers, and if we are using ksh, I am fond of:
Code:
#! /usr/bin/ksh
while (($#)) ; do
if [[ $1 = ?(+|-)+([0-9]) ]] ; then
echo $1 is an integer
fi
shift
done
exit 0
i'm not looking for anything that deals with "if-then" scripts.
i'd like something simple on how to run a series of processes. for example the following:
1. ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-current/tar_files/
2. lcd /
3. get pkgsrc.tar.gz
4. bye
5. cd /usr
6. rm -rf pkgsrc
7. cd... (3 Replies)
I am new to scropting and I am just trying to work on a few simple things....
Using sh I want to do something similar to the follwoing run a simple command like a dig then I want it to get the server that it is authorotative and return it to me saying somehting like xx.xx is authorotative. I am... (3 Replies)
this is my script....
SQL> select * from dba_profiles
2 where resource_name in ('FAILED_LOGIN_ATTEMPTS','PASSWORD_LOCK_TIME')
3 order by profile;
and this is the output...
PROFILE RESOURCE_NAME RESOURCE... (2 Replies)
Ksh Scripting
Can some one give me a simple example of array operations using ksh.
For Ex:
week_array = {Sunday Monday Tuesday Wednesday Thursday Friday Saturday}
I want to assign and retrieve and print them along with their index.
I am looking for the o/p like:
0 Sunday
1 Monday ... (2 Replies)
Hi there,
I was trying to add a line of text in the middle line of a file.
I have counted the lines in the file, and then I divide it into 2, after that I am stuck on how am I suppose to append the line on that file? When I tried to use this command 'second line >> filename' it appends it at... (3 Replies)
Hi,
The logic is very simple but I can't seem to make this work in Korn shell.
I need to check two files to make sure there is no errors. Each of the file will have number. For example, first file btt.txt will have 112 which is good. Second file bgg.txt will have 6 which is also good. If I... (4 Replies)
Hi there. I'm trying to teach myself UNIX but the book I bought is a bit confusing. I'm trying out this exercise and I think I'm on the right track, but I'd appreciate any suggestions on how to improve what I have so far. Also, I'm not clear on how to use the read command to utilize the user's... (3 Replies)
echo "what is your username?"
read username
echo $username
echo /home/$username
$backup="backup"
$restore="restore"
#
#
if
then
echo "No username provided"
else
echo "hi $username would you like to backup or restore?"
read userrequest
echo $userrequest
if
then
... (4 Replies)
Hello,
I want to find the "IP-OF-SERVER" in /etc/squid/squid.conf And replace it with The IP of server.
I know this command returns the IP of server :
ifconfig | grep 'inet addr:'| grep -v '127.0.0.1' | cut -d: -f2 | awk '{ print $1}'
And I can replace with sed. :
sed -i... (4 Replies)
1. The problem statement, all variables and given/known data:
An argument example:
../path/cse/lab3/remove
Right now, it's printing out all the directory and files in 'lab3'.
I want it to print out all the files in 'remove'.
I'm not sure how to do that. (I want to use a for loop)
2.... (2 Replies)
Discussion started by: spider-man
2 Replies
LEARN ABOUT MINIX
shift
shift(1) User Commands shift(1)NAME
shift - shell built-in function to traverse either a shell's argument list or a list of field-separated words
SYNOPSIS
sh
shift [n]
csh
shift [variable]
ksh
* shift [n]
DESCRIPTION
sh
The positional parameters from $n+1 ... are renamed $1 ... . If n is not given, it is assumed to be 1.
csh
The components of argv, or variable, if supplied, are shifted to the left, discarding the first component. It is an error for the variable
not to be set or to have a null value.
ksh
The positional parameters from $n+1 $n+1 ... are renamed $1 ..., default n is 1. The parameter n can be any arithmetic expression that
evaluates to a non-negative number less than or equal to $#.
On this man page, ksh(1) commands that are preceded by one or two * (asterisks) are treated specially in the following ways:
1. Variable assignment lists preceding the command remain in effect when the command completes.
2. I/O redirections are processed after variable assignments.
3. Errors cause a script that contains them to abort.
4. Words, following a command preceded by ** that are in the format of a variable assignment, are expanded with the same rules as a vari-
able assignment. This means that tilde substitution is performed after the = sign and word splitting and file name generation are not
performed.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO csh(1), ksh(1), sh(1), attributes(5)SunOS 5.10 15 Apr 1994 shift(1)