On assignments to a variable, do x= instead of $x= .
When you use a mixture of -o and -a, you might have to control precedence. In the following, the first line would test true because -o has precedence:
if [ a = a -o b = b -a c = C ]
But add parentheses (you would need to backslash these) and it would now test false:
if [ ( a = a -o b = b ) -a c = C ]
Also, when checking for several values, a case statement makes for nice clean code, and even more handy when each value will result in a different action:
I want to do multiple comparisons on a series of numbers from an array:
I send the numbers in file1 through want to print out some info from file2 based on some conditions.
The syntax just isn't correct???
awk '
NR==FNR{
a=$0
next
... (2 Replies)
Is it possible to setup two conditions for an if then statement in a pbash script?
For example, depending on the text value of a variable I parse out of an xml file, I want to assign it a numerical values.
Example:
if ; then
VAR="25"
fi
if ; then
VAR="25"
fi
Can these two... (3 Replies)
Hi All,
I am new to shell scripting.
Can any one say what is wrong in this if statement, that uses multiple conditions
if
then
***************
else
if ( -z $pcs && "$night_time_calc" > "$night_time" )
then
********************************
... (4 Replies)
Please help me. I have been doing this for several hours.
Here is the code
if then
echo a b c d >> file.txt
echo 1111 >> file.txt
fi
The reason I want the two echo is because I want these statements printed on multiple lines. I keep getting error .
First it tells me... (2 Replies)
Hi,
Hav automated a process, and it is working fine.
for first process alone
status = ` ps -ef |grep a `
if
then
echo " Success" > temp/logfile
else
echo " Failure" > temp/logfile
fi
Now I hav to write script to automated some 2 process and then send mail using cron..
... (5 Replies)
how can we execute multiple statements in
else condition
i have
if
then
statement
else
statements
fi
in else condition i have multiple statements
but it executing only one statement
is there any way to execute multiple statements (4 Replies)
Hi All,
I need to check for 3 conditions and if all the 3 are not satified need to say that services are not running....
is the below code correct.
#********** Check to see if Service 1 is still running**************
if
then
echo "$datetimestamp: Service1 is not running" >>... (4 Replies)
I'm working on a script for class as a final project. We have to ask for values (city, state, zip) five times, but the state can only be MI, IN, IL, or OH. I'm trying to do this with a while loop inside of a while loop, but I have no idea how to do it properly.
Here's what I have so far:
... (3 Replies)
exmaple:
file1 and file2 has 1 bit
if
then
exit
else
send out email
fi
if
then
exit
else
send out email
fi
it exits the 1st if. did not continue with my 2nd if. thanks in advanced.
Please use CODE tags are suggested on every page when you post an item in... (7 Replies)
Hello,
I am new to scripting and I am trying to write a simple script that creates users and adds their passwords from two files; one a user list file and another a password list file.
For example, I have two files already.
$ cat file1
andy
stephane
aby
paul
$ cat file2
123
234... (4 Replies)
Discussion started by: FemoTheDon
4 Replies
LEARN ABOUT OPENSOLARIS
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 5.11 1 Apr 1996 test(1B)