Shell Programming and Scripting

Hi,

I have a text file with lots of text (strings,numbers,special characters etc). I am trying to replace any occurrence of these strings :

Code:

90%
91%
92%
....
100%

I want to replace them with :

Code:

"90%"
"91%"
"92%"
....
"100%"

I am now using 10 sed commands for replacement but I know it's stupid. There should be a better way. How do I do it with an one liner?

Code:

sed -e 's/[0-9]\{1,\}%/"&"/g' file

Code:

perl -pe 's/\d+%/"$&"/g' file

Thanks for the quick reply. I am facing a small issue. Its replacing other numbers too. I want to specifically replace only percentages from 90 to 100.

Code:

sed -e 's/\(^\| \)\(9[0-9]%\|100%\)/\1"\2"/g' file

Code:

perl -pe 's/\b(?:9[0-9]|100)%/"$&"/g' file

Aia,
Standard sed uses BREs; not EREs. Basic regular expressions do not include alternation (i.e., BRE|BRE). Furthermore, we don't know what separates a percentage to be quoted from its surroundings. With the following input:

Code:

123% 992% 100% 90% 93%92%,100%(90%+10%) 77.99%

a standard sed (with your suggested command) produces the output:

Code:

123% 992% 100% 90% 93%92%,100%(90%+10%) 77.99%

(which I do not believe is what is wanted) and your perl script produces:

Code:

123% 992% "100%" "90%" "93%""92%","100%"("90%"+10%) 77."99%"

(which I assume is closer to what is wanted).

I believe that what was requested was:

Code:

123% 9"92%" "100%" "90%" "93%""92%","100%"("90%"+10%) 77."99%"

but, without confirmation that that really is what is wanted from ctrid, I'm not going to try to produce a different sed or awk script that does what I might think would be a more reasonable interpretation.

ctrid,
Please give us a clear specification of what, if any, characters or strings appearing adjacent to a percentage should keep it from being quoted. (If a period or comma is to be interpreted as part of a percentage, are these characters locale specific?) Should something like 91.50% (in the C Locale) be quoted (since it is in the range 90% to 100%, inclusive)?

Don,
A times overthinking it is paralyzing, as it just happened to you.
Appreciate you.

Hi Don,

Very good catch. Even I didn't anticipate the decimals.
As you said there could be decimals.

But

Code:

992%

or

Code:

 93%92%

or

Code:

100%(90%+10%)

would not be in my input text file. All percentages are delimited by space and no periods or any other characters appear anywhere.

Hence only danger I see is of decimals. Don, Thanks once again for pointing out this.
Aia, your one liner is cool, it works for now. As Don said I have an issue only if my input file changes with decimals. How do I modify this perl statement to take care of that?