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Expr Syntax Error Multiplication


Why doesn't the expr utility know 1+1 is supposed to be interpreted as an integer, the sum of 1 and 1? Print some JSON What is the meaning of the 90/10 rule of program optimization? Ask Ubuntu works best with JavaScript enabled Latest LQ Deal: Complete CCNA, CCNP & Red Hat Certification Training Bundle Blogs Recent Entries Best Entries Best Blogs Blog List Search Blogs Home Please visit this page to clear all LQ-related cookies. http://internetmairie.com/syntax-error/501-5-5-2-rcpt-to-syntax-error.html

deleting folders with spaces in their names using xargs What is way to eat rice with hands in front of westerners such that it doesn't appear to be yucky? XavierP View Public Profile View LQ Blog View Review Entries View HCL Entries View LQ Wiki Contributions Visit XavierP's homepage! ARG1 = ARG2 ARG1 is equal to ARG2. If I am told a hard number and don't get it should I look elsewhere?

Expr Syntax Error Multiplication

Think of what others (or even you six months from now) will think of your code when viewing it. If not, there's nothing preventing you from writing another answer to cover that. linux bash shell share|improve this question edited Dec 24 '11 at 13:22 asked Dec 24 '11 at 11:59 lumbric 1,0301625 add a comment| 5 Answers 5 active oldest votes up vote What is way to eat rice with hands in front of westerners such that it doesn't appear to be yucky?

  1. You have *\ in an expression for arithmetic expansion, which yields the error bash: n *\ temp: syntax error: operand expected (error token is "\ temp").
  2. Browse other questions tagged shell-scripting or ask your own question.
  3. Then what you intended as the contents of the second backquote expression it sees outside of backquotes, and sees the following as a second backquote expression: ` done echo "The factorial
  4. If you know you have gnu dc available the more concise a=`dc -e "$precision k $var1 $var2 * $var3 /p"` can be used.
  5. Please check. –Rahul Gohrani Apr 9 '15 at 17:01 I updated my post, please check ;-) –Helio Apr 9 '15 at 17:39 I shall check this.
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sh — The Bourne shell command interpreter. bash expr share|improve this question asked Aug 30 '14 at 23:00 rudolph9 4,06573264 Have you tried using echo $(expr match "$stringZ" 'abc[A-Z]*.2')? –Tom Fenech Aug 30 '14 at 23:04 n=$((n * temp)) works. –Eliah Kagan Apr 9 '15 at 18:16 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign Expr Syntax Error In Ksh The : syntax works on my OSX 10.9.4 machine (which has bash 3.2.51, not very current): echo `expr "$stringZ" : 'abc[A-Z]*.2'` share|improve this answer answered Aug 30 '14 at 23:08 Wm

Try our newsletter Sign up for our newsletter and get our top new questions delivered to your inbox (see an example). As the files have a header record, the count is decreased by 1 to get the actual number of records. I tried to escape the * by using \* but this doesn't help. http://serverfault.com/questions/407367/how-to-avoid-syntax-error-on-missing-command-line-arguments To get the correct month I want to use: expr `date "+( ( %m - 1 ) / 3 + 1 ) * 3 % 12 + 1"` The part (

Surprisingly among these errors only once I'm getting correct count outputs for the case, where the source folder contains only single data file. Expr Syntax In Unix Shell Script ARG1 < ARG2 ARG1 is less than ARG2. more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed Disproving Euler proposition by brute force in C Accidentally modified .bashrc and now I cant login despite entering password correctly SSH makes all typed passwords visible when command is provided as

Expr Syntax Error In Unix Shell Script

Passing complex structured data type from Lightning to Apex Controller causes Internal Error with Gack Id 263119078 more hot questions question feed lang-sh about us tour help blog chat data legal http://stackoverflow.com/questions/30497074/i-am-getting-expr-syntax-errors-in-bash-shell-for-a-simple-program All Rights Reserved. Expr Syntax Error Multiplication I solved this using $[] (equivalent to $(())) instead of expr. Expr Index Syntax Error ARG1 / ARG2 arithmetic quotient of ARG1 divided by ARG2.

How do you say "enchufado" in English? check my blog Otherwise, the result will be 0. ed — A simple text editor. What exactly is a "bad" "standard" or "good" annual raise? Expr Syntax Error Mac

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Hot Network Questions Would it be ok to eat rice using a spoon in front of Westerners? Expr Match Syntax Error If we define a variable named count, setting it to zero: count=0 ...we can output the value of that variable with the echo command: echo $count 0 ...now we can increment The second issue (at least here on Mac OS X) is that the '%' needs to be escaped by using '%%' (which is valid on all versions of date): $ echo

Quote: act_rec_count=`expr ${tot_rec_count} - 1` In ksh and Posix Shell whatever is between backticks is to be executed.

share|improve this answer answered Oct 31 '10 at 6:44 alex 3,18431623 getcombination() { tempres=1 a=expr \( $2 - $1 \) + 1 b=1 while [ a -le $2 -a Although the strange formatting displayed in the output of some command-line utilities might convey the impression that what begins with ` ends with ', that is not the case. (I noticed In this example, 5 is not greater than 10, so the output is: 0 expr 5 \!= 5 Just as the = operator tests for equivalence, the != operator tests for Bash Expr Index Syntax Error Note that registered members see fewer ads, and ContentLink is completely disabled once you log in.

Subscribed! For eg, the way I'm assigning tot_rec_count. Should I use the formal form (~ます) on the buttons of an app? have a peek at these guys ARG1 * ARG2 arithmetic product of ARG1 and ARG2.

why? Here, the regular expression 'tex' represents "exactly the consecutive characters t, e, and x", so the output would be: 3 expr text : '\(.*\)' Here, the regular expression '\(.*\)' represents "The Instead of a while loop, why not a for loop? Then I've modified that portion as below - Code: ls -1 ${common_path_in}/$i/*.csv | xargs -n1 basename | while read filename do echo "${filename}" tot_rec_count=`wc -l "${common_path_in}/$i/${filename}" | cut -f1 -d' '`

more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed bash has a amazing arithmetic expansion share|improve this answer edited Apr 9 '15 at 17:51 answered Apr 9 '15 at 16:25 Helio 2,72931640 I have updated the new script. asked 1 year ago viewed 2204 times active 2 months ago Related 0why syntax error near unexpected token ' fi '1“syntax error: unexpected end of file” simple script0How do I solve I indented the code and made verbose the variable names just for readability.

Is there a way to easily handle functions returning std::pairs? But I've few doubts, would be great if you could answer - 1. I think it would have been useful to include $(()) as it does perform exactly the same as expr in regards to arithmetic. –123 May 28 '15 at 9:04 EOF stands for end-of-file and it means there are no more data available to read--in this case, text for the bash interpreter to read.

New employee has offensive Slack handle due to language barrier Is it unethical of me and can I get in trouble if a professor passes me based on an oral exam As this variable is not numeric anymore, the test operator "[" returns an error as it is comparing a non numeric variable using the numeric comparator "-lt".