cat .servers | while read LINE; do
ssh jason@$LINE $1
done
exit 1
./command.ksh "ls -l ~jason"
Why does this ONLY iterate on the first server in the list? It's not doing the command on all the servers in the list, what am I missing?
Thanks!
JP (2 Replies)
Howdie everyone...
I have a shell script RemoveFiles.sh
Inside this file, it only has two commands as below:
rm -f ../../reportToday/temp/*
rm -f ../../report/*
My problem is that when i execute this script, nothing happened. Files remained unremoved. I don't see any error message as it... (2 Replies)
Hi!
I have 2 servers. The firts has vsftpd server with this configuration:
# Example config file /etc/vsftpd.conf
#
# The default compiled in settings are fairly paranoid. This sample file
# loosens things up a bit, to make the ftp daemon more usable.
# Please see vsftpd.conf.5 for all... (2 Replies)
I have a script which uses below for loop:
for (( i = 0 ; i <= 5; i++ ))
do
echo "Welcome $i times"
done
But when I run the script, it gives error message:
Syntex Error : Bad for loop variable
Can anyone guide to run it?
Thanks in advance. (10 Replies)
Hi
I have put alias ll='ls -la' in .profile file but it doesn't work.
On hand it works it looks like the .profile file is not beeing read.
How to check whitch file is loaded? ,profile? .bash_profile?
My system: SunOS mion 5.10 Generic
Shell: /bin/pfksh
Thanks (2 Replies)
Hi,when I run my first shell script,I got something that doesn't work right.
I wrote this code in the script.
echo -e "Hello,World\a\n"But the screen print like this:
-e Hello,World
The "-e" wasn't supposed to be printed out.
Can anyone help me out?:wall:
Many thanks!:) (25 Replies)
I'm working on AIX 6, ksh shell. The parameters are some strings quotated by double quotation marks which from a file. They are quotated because there may be spaces in them.
Example:
"015607" "10" " " "A"I want to pass these parameters to a shell function by writing the following command:
... (4 Replies)
greetings,
the following code isn't working as i expect it to. the first dbl brackets do but the second set gets ignored. ie: if i'm on t70c6n229 it echoes "Something" and i expect it not to. what am i missing?
if " ]] || " ]]; then
echo "Something"
fi
thanx! (9 Replies)
Hi,
I am using korn shell.
until ]
do
echo "\$# = " $#
echo "$1"
shift
done
To the above script, I passed 2 parameters and the program control doesn't enter inside "until" loop. If I change it to until ] then it does work.
Why numeric comparison is not working with -ne and works... (3 Replies)
Discussion started by: ab_2010
3 Replies
LEARN ABOUT PLAN9
bc
BC(1) General Commands Manual BC(1)NAME
bc - arbitrary-precision arithmetic language
SYNOPSIS
bc [ -c ] [ -l ] [ file ... ]
DESCRIPTION
Bc is an interactive processor for a language that resembles C but provides arithmetic on numbers of arbitrary length with up to 100 digits
right of the decimal point. It takes input from any files given, then reads the standard input. The -l argument stands for the name of an
arbitrary precision math library. The following syntax for bc programs is like that of C; L means letter a-z, E means expression, S means
statement.
Lexical
comments are enclosed in /* */
newlines end statements
Names
simple variables: L
array elements: L[E]
The words ibase, obase, and scale
Other operands
arbitrarily long numbers with optional sign and decimal point.
(E)
sqrt(E)
length(E)
number of significant decimal digits
scale(E)
number of digits right of decimal point
L(E,...,E)
function call
Operators
+ - * / % ^ (% is remainder; ^ is power)
++ --
== <= >= != < >
= += -= *= /= %= ^=
Statements
E
{ S ; ... ; S }
print E
if ( E ) S
while ( E ) S
for ( E ; E ; E ) S
null statement
break
quit
"text"
Function definitions
define L ( L , ... , L ){
auto L , ... , L
S ; ... ; S
return E
}
Functions in
-l math library
s(x) sine
c(x) cosine
e(x) exponential
l(x) log
a(x) arctangent
j(n, x)
Bessel function
All function arguments are passed by value.
The value of an expression at the top level is printed unless the main operator is an assignment. Text in quotes, which may include new-
lines, is also printed. Either semicolons or newlines may separate statements. Assignment to scale influences the number of digits to be
retained on arithmetic operations in the manner of dc(1). Assignments to ibase or obase set the input and output number radix respec-
tively.
The same letter may be used as an array, a function, and a simple variable simultaneously. All variables are global to the program. Auto-
matic variables are pushed down during function calls. In a declaration of an array as a function argument or automatic variable empty
square brackets must follow the array name.
Bc is actually a preprocessor for dc(1), which it invokes automatically, unless the -c (compile only) option is present. In this case the
dc input is sent to the standard output instead.
EXAMPLE
Define a function to compute an approximate value of the exponential. Use it to print 10 values. (The exponential function in the library
gives better answers.)
scale = 20
define e(x) {
auto a, b, c, i, s
a = 1
b = 1
s = 1
for(i=1; 1; i++) {
a *= x
b *= i
c = a/b
if(c == 0) return s
s += c
}
}
for(i=1; i<=10; i++) print e(i)
FILES
/sys/lib/bclib mathematical library
SOURCE
/sys/src/cmd/bc.y
SEE ALSO dc(1), hoc(1)BUGS
No or operators.
A statement must have all three
A is interpreted when read, not when executed.
BC(1)