Questions about using and learning Perl script

[badola]

i have a file of some 22000 lines....after each line i have a pattern of numbers like ..for example...88.3125....
i want to remove this number from all the lines...so i want a perl script for it..
can you help me in this??????
how can i read a file in perl script?

 

[raju3295]

perl help

ONE WAY at the time i feel ,
u can read the each line of file at a time and split the each line take in to array ,and rejoin except the last element put it in another file

while ( < >) {
@a = split ($_)
x =@a
join (@b. a...
put b
}

 

[sreedhar1983]

Re: perl help

Badola,

Instead of perl script, u can do it by opening the file in VI editor and typing the following command
:%s/pattern_to_be_replaced//g

Sree

 

[badola]

Re: perl help

thnks for ur help...
now i got another solution...
we can do this thing using recording option of vi editor......

 

[verilog.course]

Re: perl help

Hope this PDF will help

 

[badola]

Re: perl help

there is one more book .....

 

[rjainv]

perl help

or you can do use inline editing in perl without even opening the file.

shell$ perl -pi "s/\d+\.\d+$//" filename

This will modify filename with the regex applied to each line.

 

[dolphinfly]

Re: perl help

any good examples of perl for verification ?

 

[research_vlsi]

Re: perl help

am upgrading on PERL. I need help regarding how to write a perl script to automate the operations in Modelsim. Like compiling, simulating, adding wave...

am working on windows... whether its possible to invoke modelsim through a perl script?

kindly help...!