First of all, I don't think your script behaves as required, at least I don't see a requirement to tell the user that the argument isn't a directory, or doesn't have the executable bit set.
Try to get the logical flow down for the script first, and jot down some pseudo-code, eg
For the tests, test (shorthand: [ ... ]) has some very valuable operators to check for files, directories, executables, and if a string has zero length.
BTW, with your method of counting you'll have a one-off error. Compare the output of ls -l | wc -l and ls | wc -l. I'll leave it to you to find the source of that error
I am using ksh.
There is a report having amounts in the following format,
34343.67-
2343.45
23434.89-
I want to sum up all the amounts. For this I first need to find out if there is a minus sign at the end and prefix it before summing up. How to achieve this?
I thought of using an... (2 Replies)
Hello, i am doing a project for school and i cannot figure out whats wrong with my 2 programs they dont seem to work at all.
the first program is called isprime and naturally it checks to see if hte number is prime or not
here is my code:
#!/usr/bin/bash
num=$1
echo you typed
if ... (2 Replies)
Hello Experts,
I am new at this and need some help. I am looking for a delete command that allows me after I grep for the hostname to delete all the lines between two characters. for example I want to delete the first line all the way up to the } character
host test019 {
hardware ethernet... (10 Replies)
Hi,
The contents of my file is below:
Name,Location,Degree,Gender,Awards
Robert,Philadelphia,Accounting,Male,5
Jane,Chicago,Business,Female,2
Allan,New York,Engineering,Male,6
Tom,Detroit,Computer Science,Male,10
Nancy,Milwaukee,Engineering,Female,4
I want to add a "ID" in the 1st line... (2 Replies)
I have script as following..
server_status= some command | grep "Total error: 0"
if ; then
echo " Server $(hostname) is Down" >>Result
fi
else
echo " Server is OK on $(hostname)" >>Result
the if command seems to be not working properly for some... (13 Replies)
Hiiiiiiiiiiiii all,
Please i want your help fast, the teacher gave us this assignment can u help me to write it?
this is the question:
Write a shell script to point all prime numbers from the fibonacci series of integer N?
using Red hat Os
Thanks all and waiting for ur answers... (1 Reply)
hiiiiiiiiiiiii,,I found an error on my following script but couldnt find it!!! Can you please help me as soon as possible?!
echo "enter a number "
read n
i=0
first=0
second=1
result=0
prime="true"
echo –n " $first $second "
while
do
result=`expr $first + $second`
first=$second... (10 Replies)
Hi all,
can you plz check whether the below code is correct & some inputs.
I need to read the below file and process it.
input :
/home/ibm/var.txt
urgent
not urgent
not needed.
#!/usr/bin/ksh
VAR=/home/ibm/var.txt
if ]
then (7 Replies)
As per code it is getting matched. not sure why it assigning to cols=0.
Any inputs please.
Input : passed is
shell.sh c tablename.
if ; then
cols=1
table=$2
else
cols=0
table=$1
fi (1 Reply)
Discussion started by: ramkumar15
1 Replies
LEARN ABOUT SUNOS
test
test(1B) SunOS/BSD Compatibility Package Commands test(1B)NAME
test - condition evaluation command
SYNOPSIS
/usr/ucb/test expression
expression
DESCRIPTION
test evaluates the expression expression and, if its value is true, sets 0 (true) exit status; otherwise, a non-zero (false) exit status
is set. test also sets a non-zero exit status if there are no arguments. When permissions are tested, the effective user ID of the process
is used.
All operators, flags, and brackets (brackets used as shown in the second SYNOPSIS line) must be separate arguments to the test command;
normally these items are separated by spaces.
USAGE
Primitives
The following primitives are used to construct expression:
-r filename True if filename exists and is readable.
-w filename True if filename exists and is writable.
-x filename True if filename exists and is executable.
-f filename True if filename exists and is a regular file. Alternatively, if /usr/bin/sh users specify /usr/ucb before /usr/bin in
their PATH environment variable, then test will return true if filename exists and is (not-a-directory). This is also the
default for /usr/bin/csh users.
-d filename True if filename exists and is a directory.
-c filename True if filename exists and is a character special file.
-b filename True if filename exists and is a block special file.
-p filename True if filename exists and is a named pipe (fifo).
-u filename True if filename exists and its set-user- ID bit is set.
-g filename True if filename exists and its set-group- ID bit is set.
-k filename True if filename exists and its sticky bit is set.
-s filename True if filename exists and has a size greater than zero.
-t[ fildes ] True if the open file whose file descriptor number is fildes (1 by default) is associated with a terminal device.
-z s1 True if the length of string s1 is zero.
-n s1 True if the length of the string s1 is non-zero.
s1 = s2 True if strings s1 and s2 are identical.
s1 != s2 True if strings s1 and s2 are not identical.
s1 True if s1 is not the null string.
n1 -eq n2 True if the integers n1 and n2 are algebraically equal. Any of the comparisons -ne, -gt, -ge, -lt, and -le may be used in
place of -eq.
Operators
These primaries may be combined with the following operators:
! Unary negation operator.
-a Binary and operator.
-o Binary or operator (-a has higher precedence than -o).
(expression) Parentheses for grouping. Notice also that parentheses are meaningful to the shell and, therefore, must be quoted.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWscpu |
+-----------------------------+-----------------------------+
SEE ALSO find(1), sh(1), attributes(5)NOTES
The not-a-directory alternative to the -f option is a transition aid for BSD applications and may not be supported in future releases.
If you test a file you own (the -r , -w , or -x tests), but the permission tested does not have the owner bit set, a non-zero (false) exit
status will be returned even though the file may have the group or other bit set for that permission. The correct exit status will be set
if you are super-user.
The = and != operators have a higher precedence than the -r through -n operators, and = and != always expect arguments; therefore, = and !=
cannot be used with the -r through -n operators.
If more than one argument follows the -r through -n operators, only the first argument is examined; the others are ignored, unless a -a or
a -o is the second argument.
SunOS 5.10 1 Apr 1996 test(1B)