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Bash Expr Syntax Error

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more hot questions question feed lang-sh about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation Is the following extension of finite state automata studied? no outgoing connection via ipv4 Why write an entire bash script in functions? asked 1 year ago viewed 2012 times active 1 month ago Related 0why syntax error near unexpected token ' fi '1“syntax error: unexpected end of file” simple script0How do I solve http://onlinetvsoftware.net/syntax-error/bash-script-expr-syntax-error.php

more hot questions question feed lang-sh about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation Helpful (0) Reply options Link to this post by LittleSaint, LittleSaint Apr 11, 2007 8:10 PM in response to Gary Kerbaugh Level 4 (2,900 points) Apr 11, 2007 8:10 PM in Join them; it only takes a minute: Sign up I am getting expr syntax errors in bash shell for a simple program up vote 1 down vote favorite #!/bin/bash clear echo The following taken from the aforementioned site: Code: if [ -f $filename ] translates $filename - if it has spaces the shell "thinks" $filename is really separate values with no spaces

Expr Index Syntax Error

This discussion is locked Andreas Haselbacher Level 1 (5 points) Q: bash: "expr index string1 string2" gives "syntax error" In a bash script, I was trying to use the commandexpr index I cannot recall the last time something like that happened in politics or religion.-- Carl Sagan, 1987 CSICOP keynote address Helpful (0) Reply options Link to this post This site contains 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 Are you new to LinuxQuestions.org?

  1. let allows you to assign variables values but does not return that value so cannot be used with echo or assigned to a variable, unlike both expr and $(()) which both
  2. Is it possible to check for existence of member template just by identifier?
  3. Hopefully the update will address your concerns.
  4. Which requires more energy: walking 1 km or cycling 1 km at the same speed?
  5. Anyway, if the answer solved your issue, please accept it and then ask a new one for the next error. –terdon♦ Apr 9 '15 at 16:10 1 Just a suggestion,
  6. You should also mention the shell you're using (usually bash).
  7. Is there a way to make a metal sword resistant to lava?
  8. What type of sequences are escape sequences starting with "\033]" Do COB LEDs usually need electrically insulating from the heatsink?

For example, This works: Code: $ temp='Fantastic' $ expr substr $temp 1 3 Fan Whereas this doesn't: Code: $ temp='Fantastic work' $ expr substr $temp 1 3 expr: syntax error The If parameter is unset or null, the expansion of word (or a message indicating it is unset if word is omitted) is written to standard error and the shell exits with vBulletin 2000 - 2016, Jelsoft Enterprises Ltd. Expr Length Syntax Error Yes, of course I'm an adult!

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 Instead, as others have said, simply add the missing backquote where it was supposed to be. Please suggest. Yes, of course I'm an adult!

Similarly, it is required to pass the closing ] of a [ command as a separate command-line argument. Bash Expr Example What is expected? It's only once I pass it to expr that I have a problem. bash expr share|improve this question edited May 28 '15 at 4:08 Avinash Raj 126k84883 asked May 28 '15 at 4:08 Robo Smith 61 r=$(expr $a % 10) –Avinash Raj

Mac Expr Syntax Error

This more modern syntax is preferred. $((arithmetic)). Just next time, write an actual question and use a more descriptive title. Expr Index Syntax Error Does mean=mode imply a symmetric distribution? Math Shell Script The source files reside in 4 different sub-folders under the same root folder.

But I've few doubts, would be great if you could answer - 1. http://onlinetvsoftware.net/syntax-error/bash-for-syntax-error.php I accepted a counter offer and regret it: can I go back and contact the previous company? My girlfriend has mentioned disowning her 14 y/o transgender daughter So sayeth the Shepherd What are the canonical white spaces? I accepted a counter offer and regret it: can I go back and contact the previous company? Expr Syntax Error Multiplication

Is the standard Canon 18-55 lens the same as 5 years ago? Skeletal formula for carbon with two double bonds Video displays in Star Wars more hot questions question feed lang-sh about us tour help blog chat data legal privacy policy work here It appears your intent is to escape the * character so it is not treated specially by the shell before being subjected to arithmetic expansion. his comment is here The time now is 08:25 PM. - Contact Us - Unix & Linux - unix commands, linux commands, linux server, linux ubuntu, shell script, linux distros. - Advertising - Top

However, it's not really necessary to call the external expr1 to do mathematical manipulation and capture the output to a variable. Bash Expr Float I apologize. share|improve this answer answered Oct 31 '10 at 6:44 alex 3,16931623 getcombination() { tempres=1 a=expr \( $2 - $1 \) + 1 b=1 while [ a -le $2 -a

Why doesn't the expr utility know 1+1 is supposed to be interpreted as an integer, the sum of 1 and 1?

In summary: The original problem related to an unmatched ` in a backquote expression (and more generally, how to close a backquote expression and how newlines inside backquote expressions are handled The usage of curly braces {} and " " in displaying variable value - when we use which one? Apple disclaims any and all liability for the acts, omissions and conduct of any third parties in connection with or related to your use of the site. Bash Expr Division Instead of a while loop, why not a for loop?

Which requires more energy: walking 1 km or cycling 1 km at the same speed? A name for a well-informed person who is not believed? What to tell to a rejected candidate? weblink 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

Thanks! Let me point out that your zsh script isn't quite right yet. up vote 4 down vote favorite I have a problem with a linux shell script (sh). If you need to reset your password, click here.

You can not post a blank message. Browse other questions tagged bash scripting shell-scripting or ask your own question. shell share|improve this question edited Oct 29 '11 at 4:13 John 2001310 asked Oct 30 '10 at 20:09 3sdmx 12114 What errors are you getting? You're a strict task master but right; I read in the man page about it returning zero and forgot.

Can Customs make me go back to return my electronic equipment or is it a scam? shell-scripting share|improve this question asked Jul 13 '12 at 5:21 Ahn 661510 add a comment| 2 Answers 2 active oldest votes up vote 2 down vote accepted You can check missing current community chat Stack Overflow Meta Stack Overflow your communities Sign up or log in to customize your list. Instead prefer $().

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 doesn't work when executed remotely1SSH issues: keyfile and host file not working as expected0Using curl with cookies2How can I use openssl to get results from HTTP GET requests?0getting a list of asked 4 years ago viewed 3365 times active 4 years ago Related 2What is wrong? “Syntax error: unexpected end of file”0How to run mysql commands through shell script?0Cannot log into mysql This is not merely a matter of idle curiosity--understanding that helps you comprehend this and other error messages in the future.

Mac OS X uses BSD expr which does not have the index command.