03-02-2011
thank you for your reply Corona I get a error
[[: H##0: expression recursion level exceeded (error token is "H##0")
But thank you for taking the time to help. When I run this in debugging mode it shows the H=`expr` to be null value this is a problem that I have been fighting for the last week. I can't get the expr command to realize that it has a value for some reason.
---------- Post updated at 08:17 PM ---------- Previous update was at 08:15 PM ----------
./datt3: line 5: syntax error near unexpected token `<<<$'
./datt3: line 5: `read H M S <<<$(date +'%H %M %S')'
also those two errors are new.
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I am looking for the correct syntax on the expr command in UNIX. I have a script that I am building at the moment. the script is creating file1 that is an actual .sql file that is going inside the oracle database to get some information in there. It take that information, puts it inside another... (2 Replies)
Discussion started by: wolf
2 Replies
2. UNIX for Advanced & Expert Users
Hello,
How do i translate datevalues in unix to normal dates.
and how do i translate normal dates in to datevalues.
I'm using the unix-date.
Sample:
1067949360 to 4-11-03 12:36
and
4-11-03 12:36 to 1067949360
I want to built a script with a question to the user: give in date... (4 Replies)
Discussion started by: Frederik
4 Replies
3. Shell Programming and Scripting
Hi I need to subtract one day from date1=`/bin/date +%d`
So I used
date=`/usr/ucb/expr $date1 - 1`
The only thing is if date1 is a single digit like 08, date will be 8 instead of 08.
How can I avoid losing 0?
Thanks for all your help!!! (4 Replies)
Discussion started by: whatisthis
4 Replies
4. UNIX for Dummies Questions & Answers
hi guys....
i hava a command expr... where i m adding a value in a loop
like
Tc=`expr $Tc\+ $l`
where
Tc is declred as a variable and every time l contains a new vaue
if
Tc =0 initially
and l =2
Tc should be equal to 0+ 2
and then
l = 4
Tc = 2+4
and dispaly as 6
but after... (5 Replies)
Discussion started by: madhu_aqua14
5 Replies
5. UNIX for Dummies Questions & Answers
Hi friends
how can i execute expr $va1 * $var2
provided i m not supposed to use '/' also the
nglob variable is turned off. (4 Replies)
Discussion started by: ashishj
4 Replies
6. Shell Programming and Scripting
Hello,
what can I do to convert a decimal number (001-366) into the day of the year it represent in the format of mm-dd-yyyy ?
I know about the date +%j, it gives me the number for the current date, what about a reverse of this, is there such a thing?
My number resides in a var, what can I do to... (3 Replies)
Discussion started by: gio001
3 Replies
7. Shell Programming and Scripting
Hi
Can anyone explain me the usage of this command and the arguments used here and what will be the expected output :
v_num=`expr nav_d_20100204_1759 : '*\(*\)'`
what will be the value returned in v_num.
Thanks in Advance!!!
Regards
Naveen Purbia (3 Replies)
Discussion started by: trying_myluck
3 Replies
8. Shell Programming and Scripting
I'm trying to check if a variable'd string is only one character and use that in an if statement the only way I could find is:
$expr "${var}" : . # expr STRING : regrep
where the "." is the grep wildcard for any single character.
Whats wrong with my code here and is there a... (3 Replies)
Discussion started by: Tewg
3 Replies
9. UNIX for Dummies Questions & Answers
I am trying to read a txt file and trying to translate multiples spaces into single spaces so the file is more organized, but whenever I try the command:
tr ' ' ' ' w.txt
The output is:
tr: extra operand `w.txt'
Try `tr --help' for more information.
Can someone please help? :wall:
... (2 Replies)
Discussion started by: Nonito84
2 Replies
10. Shell Programming and Scripting
Hello,
I have an input file contaning following data:
< 12345;5454;77;qwert< yuyuy;ruwuriwru> yyyw;
> 35353;68686;424242;hrjwhrwrwy< dgdgd;
I have first character as '<' or '>'and after that one space is their in each line
I just want to replace 1st space encountered after < or >... (3 Replies)
Discussion started by: abhi001cse
3 Replies
LEARN ABOUT MOJAVE
tcl_exprboolean
Tcl_ExprLong(3) Tcl Library Procedures Tcl_ExprLong(3)
__________________________________________________________________________________________________________________________________________________
NAME
Tcl_ExprLong, Tcl_ExprDouble, Tcl_ExprBoolean, Tcl_ExprString - evaluate an expression
SYNOPSIS
#include <tcl.h>
int
Tcl_ExprLong(interp, expr, longPtr)
int
Tcl_ExprDouble(interp, expr, doublePtr)
int
Tcl_ExprBoolean(interp, expr, booleanPtr)
int
Tcl_ExprString(interp, expr)
ARGUMENTS
Tcl_Interp *interp (in) Interpreter in whose context to evaluate expr.
const char *expr (in) Expression to be evaluated.
long *longPtr (out) Pointer to location in which to store the integer value of the expression.
int *doublePtr (out) Pointer to location in which to store the floating-point value of the expression.
int *booleanPtr (out) Pointer to location in which to store the 0/1 boolean value of the expression.
_________________________________________________________________
DESCRIPTION
These four procedures all evaluate the expression given by the expr argument and return the result in one of four different forms. The
expression can have any of the forms accepted by the expr command. Note that these procedures have been largely replaced by the object-
based procedures Tcl_ExprLongObj, Tcl_ExprDoubleObj, Tcl_ExprBooleanObj, and Tcl_ExprObj. Those object-based procedures evaluate an
expression held in a Tcl object instead of a string. The object argument can retain an internal representation that is more efficient to
execute.
The interp argument refers to an interpreter used to evaluate the expression (e.g. for variables and nested Tcl commands) and to return
error information.
For all of these procedures the return value is a standard Tcl result: TCL_OK means the expression was successfully evaluated, and
TCL_ERROR means that an error occurred while evaluating the expression. If TCL_ERROR is returned then the interpreter's result will hold a
message describing the error. If an error occurs while executing a Tcl command embedded in the expression then that error will be
returned.
If the expression is successfully evaluated, then its value is returned in one of four forms, depending on which procedure is invoked.
Tcl_ExprLong stores an integer value at *longPtr. If the expression's actual value is a floating-point number, then it is truncated to an
integer. If the expression's actual value is a non-numeric string then an error is returned.
Tcl_ExprDouble stores a floating-point value at *doublePtr. If the expression's actual value is an integer, it is converted to floating-
point. If the expression's actual value is a non-numeric string then an error is returned.
Tcl_ExprBoolean stores a 0/1 integer value at *booleanPtr. If the expression's actual value is an integer or floating-point number, then
they store 0 at *booleanPtr if the value was zero and 1 otherwise. If the expression's actual value is a non-numeric string then it must
be one of the values accepted by Tcl_GetBoolean such as "yes" or "no", or else an error occurs.
Tcl_ExprString returns the value of the expression as a string stored in the interpreter's result.
SEE ALSO
Tcl_ExprLongObj, Tcl_ExprDoubleObj, Tcl_ExprBooleanObj, Tcl_ExprObj
KEYWORDS
boolean, double, evaluate, expression, integer, object, string
Tcl 7.0 Tcl_ExprLong(3)