what is the function of swap in linux why i have to create apsolutely a particion for the swap when i install (i installed lnx4win mandrake and made an automat. disk particion and the install program one of my disk partitions that was 3gb devidet in 4 one native 700mb swap 600mb and the others i... (1 Reply)
i have no clue what I am doing with the ed editor since i have never really used it.. the only thing is the sed edittor on the unix emulator I downloaded for windows is rather simple and the man pages are very vague... it doesn't function according to most linux operating systems that envoke sed..... (4 Replies)
how do i write a script that'll open what i entered and scan it for a certain line of text.
for example, i enter a filename (that exists) and in that file i want to scan a certain word that'll show how much of that word appears throughout the file. (2 Replies)
Hello there,
New user/ poster that just joined, really quick question as I couldnt find it through the search function
In this script
echo -n "enter your username "
read username
if
then
echo "Hello $username!"
exit 0
else
echo "You did not provide a vaild name!"
exit 1... (2 Replies)
Hi All,
Actually im new to Unix and trying to learn shell scripting in uwin(freeware) on windows xp machine.
I tried writing the shell script with vi mode, but my problem is I am unable to save this script file even after specifying :wq option ie I am unable to save the file and quit from vi mode... (1 Reply)
Hi,
When doing ls -l, is it right to assume that all files with the date and time on it are files that are created/modified on the current year?
Is there any way to display the creation/modified date of a file that are not created/modified in the current year? (4 Replies)
Hi,
I'm using UWIN (from at&t - a cygwin like environment) in my personal computer to show Unix like environment to someone new to Unix. Though UWin has Ksh command box, wanted to show Putty to that person.
My question is. How to connect to Cygwin (or UWin) installed in personal computer... (2 Replies)
Discussion started by: bobbygsk
2 Replies
LEARN ABOUT OPENSOLARIS
let
let(1) User Commands let(1)NAME
let - shell built-in function to evaluate one or more arithmetic expressions
SYNOPSIS
ksh
let arg...
ksh93
let [expr...]
DESCRIPTION
ksh
Each arg is a separate arithmetic expression to be evaluated.
ksh93
let evaluates each expr in the current shell environment as an arithmetic expression using ANSI C syntax. Variables names are shell vari-
ables and they are recursively evaluated as arithmetic expressions to get numerical values. let has been made obsolete by the ((...)) syn-
tax of ksh93(1) which does not require quoting of the operators to pass them as command arguments.
EXIT STATUS
ksh
ksh returns the following exit values:
0 The value of the last expression is non-zero.
1 The value of the last expression is zero.
ksh93
ksh93 returns the following exit values:
0 The last expr evaluates to a non-zero value.
>0 The last expr evaluates to 0 or an error occurred.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO ksh(1), ksh93(1), set(1), typeset(1), attributes(5)SunOS 5.11 2 Nov 2007 let(1)