Beefy Boxes and Bandwidth Generously Provided by pair Networks
No such thing as a small change
 
PerlMonks  

comment on

( [id://3333]=superdoc: print w/replies, xml ) Need Help??
In a bash shell, I get:
$ perl -nE "/: / and $c += (split/: /)[0]; if( eof(ARGV) ){ say qq[SUM +.$ARGV =$c]; $c=0 }" tmp_* syntax error at -e line 1, near "+=" syntax error at -e line 1, near "; =" Execution of -e aborted due to compilation errors.

And:

$ c=10 $ echo c c $ echo $c 10 $ echo "The total is: $c" The total is: 10 $ echo 'The total is: $c' The total is: $c
So within double quotes, the shell expands $variables, which of course happens *before* the shell hands the text over to the perl command. That is similar to the way the shell expands your glob: tmp_* and replaces it with a list of file names, which is what the perl command ends up seeing.

In reply to Re^3: perl onliner on multiple files by 7stud
in thread perl onliner on multiple files by abhay180

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":



  • Are you posting in the right place? Check out Where do I post X? to know for sure.
  • Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
    <code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>
  • Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
  • Want more info? How to link or How to display code and escape characters are good places to start.
Log In?
Username:
Password:

What's my password?
Create A New User
Domain Nodelet?
Chatterbox?
and the web crawler heard nothing...

How do I use this?Last hourOther CB clients
Other Users?
Others chanting in the Monastery: (9)
As of 2024-03-28 10:07 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    No recent polls found