| 1 |
On Sun, 13 May 2012 05:12:59 Stroller wrote: |
| 2 |
> On 13 May 2012, at 00:22, Alex Schuster wrote: |
| 3 |
> > … |
| 4 |
> > |
| 5 |
> >>> You can set LESSIGNORE='*.htm*'. This environment variable is used by |
| 6 |
> >>> the lesspipe command, which is invoked by less and filters the input |
| 7 |
> >>> file before giving it to less itself. |
| 8 |
> >> |
| 9 |
> >> Contrary to my previous email, sent in error, that does NOT work. |
| 10 |
> >> |
| 11 |
> >> Did you check this yourself? |
| 12 |
> > |
| 13 |
> > Yes. I did not know about this mechanism before, but 'env|grep -i less' |
| 14 |
> > showed the LESS and LESSOPEN environment variable, so I learnt about the |
| 15 |
> > lesspipe command. lesspipe -h gives a little info, LESSIGNORE is shown |
| 16 |
> > there. |
| 17 |
> |
| 18 |
> I have here now: |
| 19 |
> |
| 20 |
> $ env | grep -i less |
| 21 |
> PAGER=/usr/bin/less |
| 22 |
> LESS=-R -M --shift 5 |
| 23 |
> LESSOPEN=|lesspipe %s |
| 24 |
> LESSIGNORE=*.htm* |
| 25 |
> $ |
| 26 |
|
| 27 |
|
| 28 |
On my system, I get this as the lesspipe help message: |
| 29 |
|
| 30 |
######################################### |
| 31 |
[paulcol@bluering ~] |
| 32 |
[Sun May 13 10:26:09]$ lesspipe --help |
| 33 |
lesspipe: preproccess files before sending them to less |
| 34 |
|
| 35 |
Usage: lesspipe <file> |
| 36 |
|
| 37 |
lesspipe specific settings: |
| 38 |
LESSCOLOR env - toggle colorizing of output (no/yes/always) |
| 39 |
LESSCOLORIZER env - program used to colorize output (default: |
| 40 |
code2color) |
| 41 |
LESSIGNORE - list of extensions to ignore (don't do anything |
| 42 |
fancy) |
| 43 |
|
| 44 |
You can create per-user filters as well by creating the executable file: |
| 45 |
~/.lessfilter |
| 46 |
One argument is passed to it: the file to display. |
| 47 |
|
| 48 |
To use lesspipe, simply add to your environment: |
| 49 |
export LESSOPEN="|lesspipe %s" |
| 50 |
|
| 51 |
Run 'less --help' or 'man less' for more info |
| 52 |
######################################### |
| 53 |
|
| 54 |
I would interpret the "don't do anything fancy" caveat on LESSIGNORE to mean |
| 55 |
that wildcards may not work. Some experimenting on my system shows me that |
| 56 |
this version seems to do what you want: |
| 57 |
|
| 58 |
LESSIGNORE="htm html" |
| 59 |
|
| 60 |
I don't normally have LESSOPEN set, so I havn't seen this situation before. |
| 61 |
|
| 62 |
-- |
| 63 |
Reverend Paul Colquhoun, ULC. http://andor.dropbear.id.au/~paulcol |
| 64 |
Before you criticize someone, you should walk a mile in their shoes. |
| 65 |
Then, when you do, you'll be a mile away, and you'll have their shoes. |
Archives