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curmudgeon
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Joined: 08 Aug 2003
Posts: 1741
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 Posted: Fri Jan 06, 2006 6:49 am Post subject: I want less out of less |
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A new version of less got marked stable recently
with less than happy results, at least for me.
It seems that less now tries to display with syntax
(a la vim). At first:
| Code: | $ less /usr/bin/lesspipe.sh
ESC[32m#!/bin/bashESC[0m
ESC[34m#ESC[0m
ESC[34m# Preprocessor for 'less'. Used when this environment variable is set:
# LESSOPEN="|lesspipe.sh %s"ESC[0m
ESC[34m# TODO: handle compressed files better
ESC[0m
trap 'exit 0' PIPE
guesscompress() {
case ESC[31m"ESC[36m$1ESC[0m" in
*.gz) echo ESC[31m"gunzip -c"ESC[0m ;;
*.bz2) echo ESC[31m"bunzip2 -c"ESC[0m ;;
*.Z) echo ESC[31m"compress -d"ESC[0m ;;
*) echo ESC[31m"cat"ESC[0m ;;
esac
}
lesspipe_file() {
local ESC[36mESC[36moutESC[0m=$(file -L -- ESC[31m"ESC[36m$1ESC[0m")
case ${out} in
*ESC[31m" ar archive"ESC[0m*) lesspipe ESC[31m"ESC[36m$1ESC[0m" ESC[31m".a"ESC[0m ;;
*ESC[31m" tar archive"ESC[0m*) lesspipe ESC[31m"ESC[36m$1ESC[0m" ESC[31m".tar"ESC[0m ;;
*ESC[31m" CAB-Installer"ESC[0m*) lesspipe ESC[31m"ESC[36m$1ESC[0m" ESC[31m".cab"ESC[0m ;;
*ESC[31m" troff "ESC[0m*) lesspipe ESC[31m"ESC[36m$1ESC[0m" ESC[31m".man"ESC[0m ;;
*ESC[31m" shared object"ESC[0m*) lesspipe ESC[31m"ESC[36m$1ESC[0m" ESC[31m".so"ESC[0m ;;
*ESC[31m" Zip archive"ESC[0m*) lesspipe ESC[31m"ESC[36m$1ESC[0m" ESC[31m".zip"ESC[0m ;;
*ESC[31m" LHa"ESC[0m*archive*) lesspipe ESC[31m"ESC[36m$1ESC[0m" ESC[31m".lha"ESC[0m ;;
*ESC[31m" ELF "ESC[0m*) readelf -a -- ESC[31m"ESC[36m$1ESC[0m" ;;
*ESC[31m": data"ESC[0m) hexdump -C -- ESC[31m"ESC[36m$1ESC[0m" ;;
*) return 1 ;;
esac
return 0
} |
Blech!
A quick look at the man page tells me that -R
(or -r) will display this as intended, but I would
rather turn the whole thing off (have no syntax
highlighting whatsoever). How do I do that?
Thank you in advance.
P.S. I tried searching the forum for less, but
that returned zero results, probably as less
appears on some list of common words. |
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dasilva
Tux's lil' helper
Joined: 20 Oct 2004
Posts: 83
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| Posted: Fri Jan 06, 2006 7:01 am Post subject: |
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in your ~/.bash_profile put
| Code: |
alias less='less -R'
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man alias for more information. The alias command can also be useful for making nano always start with -w, among other things 
hope that helps. |
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Dlareh
Advocate
Joined: 06 Aug 2005
Posts: 2102
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| Posted: Fri Jan 06, 2006 7:19 am Post subject: |
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| dasilva wrote: | in your ~/.bash_profile put
| Code: |
alias less='less -R'
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man alias for more information. The alias command can also be useful for making nano always start with -w, among other things
hope that helps. |
Actually, the environment variable LESS is a better way to control its behavior. For instance mine is:
| Code: | | LESS='-R -M --shift 5' |
P.S. curmudgeon, please do not insert line breaks (press enter) in the middle of sentences when posting to the WWW.
_________________
"Mr Thomas Edison has been up on the two previous nights discovering 'a bug' in his phonograph." --Pall Mall Gazette (1889)
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curmudgeon
Veteran
Joined: 08 Aug 2003
Posts: 1741
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| Posted: Fri Jan 06, 2006 7:48 am Post subject: |
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First of all, do line breaks cause some problem I don't know about? I have a very wide monitor, and having line breaks just makes it easier for me to read. :)
Putting the parameters in the .lesskey file works even better (the whole purpose for that file), but that does NOT tell me how to TURN OFF syntax highlighting. The -R parameter will display it correctly, but I don't want it at all. I want to see the file without any color whatsoever. How do I do that? |
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Dlareh
Advocate
Joined: 06 Aug 2005
Posts: 2102
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| Posted: Fri Jan 06, 2006 8:04 am Post subject: |
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use "export LESSCOLOR=0"
I too have a very large monitor, so your line breaks cause your text to display using less than 10% of my screen width, which I find extremely annoying and uncomfortable to read. Automatic word wrap allows everyone to size their browser windows to suit their own tastes.... you should make your windows narrower when posting, if this helps you. I think anything that uses a fixed width for text (many news sites, for instance) are an abomination.
_________________
"Mr Thomas Edison has been up on the two previous nights discovering 'a bug' in his phonograph." --Pall Mall Gazette (1889)
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curmudgeon
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Joined: 08 Aug 2003
Posts: 1741
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| Posted: Fri Jan 06, 2006 7:29 pm Post subject: |
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| Dlareh wrote: | | use "export LESSCOLOR=0" |
Well that worked (thanks). Where the !@#$%^&* is that documented? I couldn't find it anywhere even after your post. |
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Dlareh
Advocate
Joined: 06 Aug 2005
Posts: 2102
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| Posted: Sat Jan 07, 2006 8:16 am Post subject: |
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| curmudgeon wrote: | | Dlareh wrote: | | use "export LESSCOLOR=0" |
Well that worked (thanks). Where the !@#$%^&* is that documented? I couldn't find it anywhere even after your post. |
lesspipe.sh -h, though I actually got it by reading line 142
_________________
"Mr Thomas Edison has been up on the two previous nights discovering 'a bug' in his phonograph." --Pall Mall Gazette (1889)
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