On Mon, Jan 05, 2009 at 12:14:25PM EST, Bob Proulx wrote:
> Chris Jones wrote:
[..]
> If you wish to be kind to people using random text editors then it
> would be nice to shorten those marker comment lines by at least one
> character so that they do not wrap around terminals. Some editors put
> a line wrap indicator in the last column indicating that the line
> displayed is wrapped to the next line.
I normally use the default tw=72 that is set in my .vimrc .. but, I was so
fussed up by my attempts to make this little script work and awk's sometimes
quirky syntax that I found myself constantly wrapping to the next line and
decided to set it manually to something larger so I could focus on the coding
never thinking I would later need to post it and ask for assistance ..
And there it comes back to bite me ..
> Also, as long as I am whining (:-) using eight columns for a single
> indention level is alot of whitespace! Of course this is personal
> preference and a bike shed discussion but still...
Thanks, I have set tabstop.. etc. to 2 instead of 4 in my .vimrc..
The reason it looked like I was using an indentation of 8 is that I had
removed some lines while trying to make it work: In particular I had deleted
the "while line" and naturally forgot to .. "disindent" what followed.
> > I have tried numerous things with while .. getfile .. restructuring the
> > above, adding a BEGIN section .. and gotten nowhere.
>
> Try my modification of your program. I used getline to read the file.
>
> #!/usr/bin/gawk -f
> BEGIN {
> while (getline < "/proc/meminfo") {
> if ($1=="MemTotal:") {mt = $2}; # mt = total ram on system
> if ($1=="MemFree:") {mf = $2}; # mf = free ram
> if ($1=="Buffers:") {mb = $2}; # mb = ram used for buffers
> if ($1=="Cached:") {mc = $2}; # mc = ram used for cache
> if ($1=="SwapTotal:") {st = $2}; # st = total swap
> if ($1=="SwapFree:") {sf = $2}; # sf = free swap
> }
> exit;
> }
> END {
> pmu = (mt-(mf+mb+mc)) * 100 / mt; # pmu = % of ram used
> psu = ((st-sf) * 100 / st); # psu = % of swap used
> printf ("%2.1f %s %2.1f %s\n"), pmu, "%", psu, "%";
> }
This is in essence identical to my first attempt .. but since I didn't save
earlier versions, I'll never know why mine was hanging .. looked like it was
waiting for some input from the keyboard, now I come to think of it.. should
have entered something/anything .. maybe it would have reacted and that might
have been enough to push me in the right direction.
The main differences that I can see now is that I was missing the commas at
the end of each line .. will have to check what they're for since awk wasn't
complaining .. and I also found some trailing spaces before the EOL.
And all the time, I was looking for a structural flaw.. something in awk's
processing logic that I misunderstood.. I should have looked more closely at
what vim's color syntax highlighting was telling me..
:-)
Thanks for your help!
CJ
