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Bash Syntax Error Operand Expected

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Is 8:00 AM an unreasonable time to meet with my graduate students and post-doc? Maybe a typo crept in somewhere earlier in your script? Skeletal formula for carbon with two double bonds How does Gandalf get informed of Bilbo's 111st birthday party? They all relate to command-line syntax, most for bash, but in one case for the separate expr utility.

Bash Syntax Error Operand Expected (error Token Is )

Single quotes for the assignment are best if you want to prevent all expansion there: INPUT1=/tmp/dir1 → INPUT1='/tmp/dir with spaces' (Only a ' quote character is treated specially, as it will For example, in the first iteration of the loop, if $s appeared it would be expanded to INPUT1. However, the more interesting aspect of this question is why do you get that error message? What does an 'ü' mean?

Code: $ echo $COLUMNS 128 Excellent, the environment variable is set Code: $ cat col.sh #!/bin/bash echo $COLUMNS $ ./col.sh $ What the??? What does Sauron need with mithril? How to indicate you are going straight? Bash (error Token Is "<= ") asked 3 years ago viewed 11856 times active 3 years ago Related 2882Can a Bash script tell which directory it is stored in?728How can I redirect and append both stdout and

printf is also an executable that can be called from other shells (and in that capacity is standardized). Browse other questions tagged linux bash for-loop or ask your own question. 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 My home country claims I am a dual national of another country, the country in question does not.

You might have use for other features of arrays in solving this problem. Syntax Error In Expression (error Token Is Instead, as others have said, simply add the missing backquote where it was supposed to be. Kevin Barry PS You should also copy $? And this should read the numbers and it should divide them up.

Bash Int

Yes? Will the medium be able to last 100 years? Bash Syntax Error Operand Expected (error Token Is ) Having a problem logging in? (( I Syntax Error Operand Expected (error Token Is ) This kind of parameter expansion is called indirect expansion.

What to tell to a rejected candidate? his comment is here Hot Network Questions Skipping directly to level 4 Is there a way to make a metal sword resistant to lava? hiddir=$(expr $(ls -l -a $tgtdir | grep ^d | wc -l) - $visdir) # Finds hidden directories by expressing total number of directories including hidden - total number of visible directories The Woz Monitor Should indoor ripened tomatoes be used for sauce? Syntax Error Operand Expected (error Token Is = )

EOF is not inherently an error condition, but when an EOF is an error it usually means the interpreter thinks your program has ended prematurely--it was anticipating something, which never occurred To check if the input is a positive integer (only unsigned digits) you can use this awesome bash regex: [[ "$number" =~ ^[0-9]+$ ]] that checks if $numbercontains only digits. Code: $ var= $ if (( $var >= (3 + 5) ));then echo true;else echo false;fi bash: ((: >= (3 + 5) : syntax error: operand expected (error token is ">= this contact form watch out how your variable k is always incremented, and remember that the test part in the for loop (i.e., the l<=hitEnd[k] part) is evaluated at each pass! –gniourf_gniourf Dec 2

Nominal Animal View Public Profile View LQ Blog View Review Entries View HCL Entries Find More Posts by Nominal Animal View Blog 08-14-2011, 08:31 PM #12 MTK358 LQ 5k Club Invalid Arithmetic Operator (error Token Is Please explain the local library system in London, England What are the holes on the sides of a computer case frame for? GTIN validation How could banks with multiple branches work in a world without quick communication?

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To keep with script programming paradigm and allow for better math support, languages such Perl or Python would be better suited when math is desired. for s in '/tmp/dir '{1..3}' with spaces'; do echo "$s" done That prints: /tmp/dir 1 with spaces /tmp/dir 2 with spaces /tmp/dir 3 with spaces And if your goal is really Click here to see the post LQ members have rated as the most helpful post in this thread. Expr: Syntax Error for i in {0,1,2}; works for me –Ubuntuser Sep 4 '13 at 7:10 @Ubuntuser How do you run the script? –Radu Rădeanu Sep 4 '13 at 7:12

Code: #!/bin/bash COLS=$(tput cols) LINS=$(tput lines) echo $COLS echo $LINS This worked without having to export the environment variables. Would you please upvote (upward triangle) or accept (checkmark) this answer so others will know it was useful? current community chat Stack Overflow Meta Stack Overflow your communities Sign up or log in to customize your list. navigate here However, it is strange that it works now.

MTK358 View Public Profile View LQ Blog View Review Entries View HCL Entries Find More Posts by MTK358 View Blog 08-14-2011, 02:37 PM #4 makyo Member Registered: Aug 2006 What are the holes on the sides of a computer case frame for? 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 But this did not work for me.

Meaning of Guns and ghee How would family relationships change if legal system uses collective punishment? How rich can one single time travelling person actually become? 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 I removed the "$" characters from in front of the variable names, and it doesn't show errors any more, but there is no ber on top.

How to book a flight if my passport doesn't state my gender? Why does Windows show "This device can perform faster" notification if I connect it clumsily? 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 So here I see the same issue that MTK refers to but with a simpler test.

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