#!/usr/bin/env tcsh
# @(#) s1 Demonstrate remainder operator in tcsh.
# Infrastructure details, environment, commands for forum posts.
# Uncomment setenv command to run script as external user.
# setenv PATH "/usr/local/bin:/usr/bin:/bin"
echo
setenv LC_ALL C ; setenv LANG C
echo "Environment: LC_ALL = $LC_ALL, LANG = $LANG"
echo "(Versions displayed with local utility version)"
sh -c "version >/dev/null 2>&1 && version '=o' tcsh"
echo
@ a = 1 + 1
echo " a is $a"
echo
@ even = 16 % 2
echo " even is $even"
echo
@ odd = 17 % 2
echo " odd is $odd"
echo
set n = 22
if ( $n % 2 == 0 ) then
echo " $n is even"
else
echo " $n is odd"
endif
echo
set n = 23
if ( $n % 2 == 0 ) then
echo " $n is even"
else
echo " $n is odd"
endif
exit 0
producing:
Code:
% ./s1
Environment: LC_ALL = C, LANG = C
(Versions displayed with local utility version)
OS, ker|rel, machine: Linux, 2.6.26-2-amd64, x86_64
Distribution : Debian GNU/Linux 5.0
tcsh 6.14.00
a is 2
even is 0
odd is 1
22 is even
23 is odd
See man tcsh for details. However, if I had a choice, I would use one of the Bourne shell family: sh, bash, ksh, zsh for scripting. There are too many pitfalls and missing features in csh / tcsh. They are, however, very useful for interactive work.
Hi ,
I am facing a problem .. which looks simple... but took 2 days of mine.. even now it is not solved completely..
I have one variable..., want to know whether that variable contains number... canbe +ve or -ve ...
Values
+35 --- number
-43 --- number
45A -- non number... (12 Replies)
Hi,
I have one file like 00123. And this file name is generated as a sequence.
So how can I confirm the generated file name is a number, not a special character or alphabets.
Can anybody help me out.
Thanks in advance. (3 Replies)
A friend of mine is switching his email from one University server to a different one. He is using the tcsh, and on his current server, the shell will tell him (when the prompt is displayed) if there is new mail. The new server, where he also has the tcsh, does not do this by default. I got him... (0 Replies)
Hi,
I have a file with data as given
$cat file1.txt
123
234
23e
234.456
234.876e
345.00
I am checking if the values are proper integers using the command.
nawk -F'|' 'int($1)!=$1 {printf "Error in field 1|"$0"\n"}' file1.txt
This is checking for only integers ( without... (10 Replies)
Hello
I have Linux Debian & tcsh shell. My mini script not run :(.
Startup script displays a message:
user@host:dir% ./test
if: Badly formed number.
script:
#!/bin/tcsh -f
#script check size files systems
set x = `df -h /usr | tail -n1 | awk '{ print( $5 ); }'`
set y = 60%
if ($x... (5 Replies)
I have 2 and three params, both I should make sure thay numbers at one single line insted of checking for each one .
Example I wroote the following way.. checking for 2 and three seperately but I shud be able to do it at on statement
echo $2 | egrep '^+$' >/dev/null 2>&1
if ; then
echo... (2 Replies)
Hi,
We are getting a curios result in one of AIX script. Its executed using !/bin/ksh .
After following line we get result of 3 in in the variable instance_count.
instance_count=`ps -ef | grep "script_check_instances.sh" | grep -v "grep" | wc -l`
But once we do a "ps -aef | grep... (2 Replies)
Hello,
May i please know how do i check if the given input argument is one of the listed numbers then success else failure. I am using bash shell.
if
then
echo "success"
else
echo "failure"
fi
Thank you. (2 Replies)
Hi,
I've to wait until a file generated and once its generated, source another script in Linux terminal.
Please help me as this is very very urgent.
The code should be something like
if ( -e "/abc/xyz/a.txt )
source aaa.csh
else
sleep
This should be repeated till the if... (4 Replies)
Discussion started by: kumar_eee
4 Replies
LEARN ABOUT SUNOS
noecho
echo(3XCURSES) X/Open Curses Library Functions echo(3XCURSES)NAME
echo, noecho - enable/disable terminal echo
SYNOPSIS
cc [ flag... ] file... -I /usr/xpg4/include -L /usr/xpg4/lib
-R /usr/xpg4/lib -lcurses [ library... ]
c89 [ flag... ] file... -lcurses [ library... ]
#include <curses.h>
int echo(void);
int noecho(void);
DESCRIPTION
The echo() function enables Echo mode for the current screen. The noecho() function disables Echo mode for the current screen. Initially,
curses software echo mode is enabled and hardware echo mode of the tty driver is disabled. The echo() and noecho() functions control soft-
ware echo only. Hardware echo must remain disabled for the duration of the application, else the behavior is undefined.
RETURN VALUES
Upon successful completion, these functions return OK. Otherwise, they return ERR.
ERRORS
No errors are defined.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
|MT-Level |Unsafe |
+-----------------------------+-----------------------------+
SEE ALSO getch(3XCURSES), getstr(3XCURSES), initscr(3XCURSES), libcurses(3XCURSES), scanw(3XCURSES), attributes(5), standards(5)SunOS 5.10 5 Jun 2002 echo(3XCURSES)