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Bash For Loop Syntax Error Operand Expected


Subtraction with a negative result no outgoing connection via ipv4 What does Sauron need with mithril? However, you accidentally hard-coded the drive name, so instead it should be: if [[ "$(df -h | grep $BACKUP_DRIVE | awk '{print $5}' | cut -d "%" -f1)" -ge 95 ]]; Instead of a while loop, why not a for loop? Success! Check This Out

Maybe you can Code: grep 'COLUMNS' all the scripts and check each line for errors. This is because you can actually have newlines (i.e., line breaks) inside a backquote expression: [email protected]:~$ file `which vim > ` /usr/bin/vim: symbolic link to `/etc/alternatives/vim' So what's happening is that Train ride from Copenhagen to Malmo more hot questions question feed lang-bsh about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology The line if [ "$num" -ge 0]; then should thus be rewritten to say: if [ "$num" -ge 0 ]; then For more details on [ syntax, see the output of

Bash Syntax Error Operand Expected (error Token Is )

Code: # custom prompt function create-prompt-infobar { local i=0 if (($COLUMNS >= (${#PWD} + ${#?} + 11))); then echo -n "$PWD" for ((i=0; i<($COLUMNS-${#PWD}-${#?}-10); i++)); do echo ""; done echo -n Code: $ echo $COLUMNS 128 Excellent, the environment variable is set Code: $ cat col.sh #!/bin/bash echo $COLUMNS $ ./col.sh $ What the??? 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

How does the pilot control the Dassault Rafale? How rich can one single time travelling person actually become? However, if they can still be set to some false value. Expr: Syntax Error Will the medium be able to last 100 years?

As it appears, you will have to export COLUMNS and LINES before you can use them in a script. Syntax Error Operand Expected (error Token Is = ) Should indoor ripened tomatoes be used for sauce? Quote: Originally Posted by ta0kira You need to put $(create-prompt-infobar) within the single quotes like the rest of it. And this should read the numbers and it should divide them up.

SYNOPSIS bc bc EXPRESSION Here are some examples: $ bc bc 1.06 Copyright 1991-1994, 1997, 1998, 2000 Free Software Foundation, Inc. Integer Expression Expected I have tried: for (($i=0;$i<10;$i ++)) do echo $i done I get this error: line 1: ((: =0: syntax error: operand expected (error token is "=0") bash shell scripting share|improve this That was quick! –user862489 Jul 28 '11 at 4:35 @Laurent, reverted as it doesn't fit in with the rest of the answer (replace x by y). –jman Aug 28 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

Syntax Error Operand Expected (error Token Is = )

If you'd like to contribute content, let us know. I also don't see how this is an Ubuntu issue, as it's a pure generic coding question and belongs on Stack Overflow, not here. –Thomas Ward♦ Apr 9 '15 at 16:01 Bash Syntax Error Operand Expected (error Token Is ) Using Map to convert Feet + Inches to Inches in a List of Lists What is the sh -c command? Bash (error Token Is ") The question does not have to be directly related to Linux and any language is fair game.

Bang!" meaning error output is displayed not at the beginning of the loop, but when k has a greater value than array's indices, pointing an index that array does not include... http://sovidi.com/syntax-error/bash-while-loop-syntax-error.php The time now is 08:31 PM. - Contact Us - Unix & Linux - unix commands, linux commands, linux server, linux ubuntu, shell script, linux distros. - Advertising - Top Is it possible to check for existence of member template just by identifier? Thus ${!s} is expanded to /tmp/dir1. Syntax Error In Expression Error Token Is

Reason: removed ambiguous sentence crts View Public Profile View LQ Blog View Review Entries View HCL Entries Find More Posts by crts 08-14-2011, 04:30 PM #8 MTK358 LQ 5k Password Protected Wifi, page without HTTPS - why the data is send in clear text? You can do whichever one you choose. this contact form Join them; it only takes a minute: Sign up Syntax error: operand expected (error token is “+”) up vote 5 down vote favorite I'm writing a script in bash and I

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On THE other hand or on another hand? Browse other questions tagged linux bash for-loop or ask your own question. you inspired me, and it works.. –teutara Dec 2 '12 at 18:34 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Unary Operator Expected Script is: #!/bin/sh BACKUP_DRIVE='/backup' if [[ "$( grep $BACKUP_DRIVE /etc/fstab | awk '{print $2}')" -ne "0" ]]; then if [[ "$( df -h | grep $BACKUP_DRIVE | awk '{print $6}')" -ne

Ask Ubuntu works best with JavaScript enabled Visit Jeremy's Blog. Don't use bash. crts View Public Profile View LQ Blog View Review Entries View HCL Entries Find More Posts by crts 08-14-2011, 08:27 PM #11 Nominal Animal Senior Member Registered: Dec 2010 http://sovidi.com/syntax-error/bash-script-syntax-error-operand-expected.php It's more readable and shortens the code.

Code: $ var= $ if (( $var >= (3 + 5) ));then echo true;else echo false;fi bash: ((: >= (3 + 5) : syntax error: operand expected (error token is ">= But inside a $(( )) construct, one does not escape *. A name for a well-informed person who is not believed?