Home > Syntax Error > Bash Expr Substr Syntax Error

Bash Expr Substr Syntax Error

Contents

What does Sauron need with mithril? Are there any 'smart' ejection seats? Intuition behind Harmonic Analysis in Analytic Number Theory In a GNU C macro envSet(name), what does (void) "" name mean? This is the same as STRING : REGEX. http://onlinetvsoftware.net/syntax-error/bash-expr-syntax-error.php

index STRING CHARSET Returns the first position in STRING where the first character in CHARSET was found. How to do it? Unix & Linux Stack Exchange works best with JavaScript enabled ( SS64 ) Bash Syntax expr Evaluate expressions, evaluates an expression and writes the result on standard output. This is being run on SunOS.

Expr Index Syntax Error

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 Verbs of buttons on websites American English: are [ə] and [ʌ] different phonemes? Operands are either numbers or strings. `expr' coerces anything appearing in an operand position to an integer or a string depending on the operation being applied to it. share|improve this answer answered Aug 7 '14 at 23:22 val0x00ff 3,6671724 add a comment| up vote 0 down vote You need double quotes: IDX=`expr index "$OF" ' '` Without quotes, the

length STRING length of STRING. + TOKEN interpret TOKEN as a string, even if it is a keyword like 'match' or an operator like '/'. ( EXPRESSION ) value of EXPRESSION. i want to set the 2006 to a variable. 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 Expr Mac How rich can one single time travelling person actually become?

sh — The Bourne shell command interpreter. Bash Expr Index Example Index Help reading config file » Results 1 to 5 of 5 Thread: [SOLVED] 'expr' command problems Thread Tools Show Printable Version Subscribe to this Thread… Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode ARG1 - ARG2 arithmetic difference of ARG1 and ARG2.

vBulletin 2000 - 2016, Jelsoft Enterprises Ltd. Bash Substring and so ... Helpful (0) Reply options Link to this post by Ken Nellis, Ken Nellis Apr 13, 2007 6:52 PM in response to Gary Kerbaugh Level 2 (263 points) Mac OS X Apr How does the pilot control the Dassault Rafale?

Bash Expr Index Example

Roberts Apr 20 '13 at 20:37 Id love to know why this was down voted –Jeffrey L. This operator is a GNU extension. Expr Index Syntax Error There is some method to do it, however it's been a long time since I've written a script. Expr Syntax Error In Shell Script up vote 2 down vote expr is quite old-fashioned.

In the regular expression, `\+', `\?', and `\|' are operators which respectively match one or more, zero or one, or separate alternatives. http://onlinetvsoftware.net/syntax-error/bash-for-syntax-error.php However, if you have pgrep` you better use pgrep. Syntax expr expression expr option Options: --help Display help and exit --version output version information and exit Expressions: ARG1 | ARG2 ARG1 if it is neither null nor 0, otherwise ARG2 Apple Info Site Map Hot News RSS Feeds Contact Us Copyright © Apple Inc. Expr Syntax Error Multiplication

Since your question is not clear, I'm not sure what expr is doing there. A simple visual puzzle to die for When was this language released? By convension, Environment variables are CAPITALIZED. http://onlinetvsoftware.net/syntax-error/bash-script-expr-syntax-error.php On newer bash you may prefer to use the more modern regular expression syntax: re='abc[A-Z]*.2' [[ $stringZ =~ $re ]] && echo ${#BASH_REMATCH} The =~ operator is available since bash version

How could banks with multiple branches work in a world without quick communication? Should indoor ripened tomatoes be used for sauce? My first thought was that SunOS uses an old version of expr which doesn't have index (or length or substr), but you say the man page includes it. > Basically what

Not the answer you're looking for?

Quotes seem to act differently in interactive shells compared to automated. UNIX. why? Helpful (0) Reply options Link to this post by Gary Kerbaugh, Gary Kerbaugh Apr 12, 2007 6:41 PM in response to Ken Nellis Level 6 (18,040 points) Apr 12, 2007 6:41

YesNo Feedback E-mail Share Print Search Recently added pages View all recent updates Useful links About Computer Hope Site Map Forum Contact Us How to Help Top 10 pages Follow us Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the They really do it. weblink String expressions `expr' supports pattern matching and other string operators.

Can anybody point out what I'm doing wrong? To steal your idea and translate it to zsh, that would look something like the following:test=string1echo ${#test%%[string2]*}It doesn't seem to work in bash to do both of these operations in one Consider:Linux> expr index aabbcc xyz0Linux> zsh> test=aabbcczsh> echo $((${#test%%[xyz]*} + 1))7zsh> Helpful (0) Reply options Link to this post by Gary Kerbaugh, Gary Kerbaugh Apr 13, 2007 8:59 PM in response Your line uses grep and awk which is not necessary as you could handle all that using awk.

To make `expr' interpret keywords as strings, you must use the `quote' operator. ARG1 <= ARG2 ARG1 is less than or equal to ARG2. I think it has to do with how the variable is being passed into the expression. I'm pretty sure having double quotes around it in a script makes a difference, but that might just be to do with $variables within the "s.

Roberts 1524 which OS du you use? You're a strict task master but right; I read in the man page about it returning zero and forgot.