Deleting line in a file

[Pando]

Dear Gurus,

I have a file that contain a line below:

...
Test,1
Code,
Test,2
...

What i want to do is delete the Code, part
so the the file will look like this:

...
Test,1
Test,2
...

Is there a one line command to do this?

Maximum point to all correct answers!

[Ludovic Derlyn]

hi,

it's possible with editor vi

vi "file"

"dd" for suppress line
or
substitution

s/chaine1/chaine2/[g]
s/code/""/g

In attachment, vi instructions
regards
L-DERLYN

[H.Merijn Brand (procura]

That much depends on what your decision to remove that line is based on.
If it's not context sensative, and you just want all lines that look like "Code," be removed,

# perl -ni.org -e'/^Code,$/ or print' file

or

# mv file file.org
# grep -v '^Code,$' file.org >file

The original file will be backed up as file.org
If the removal however is based on context, you need some more. Then it also depends on how big the file is

If the context is just the line before, it's still rather simple

# perl -ni.org -e'$p eq"Test,1\n"&&/^Code,$/ or print;$p=$_' file

If the file is small (for any value of small, which mainly depends on your available system resources), and you want the removal based on the line before *and* after, there are many solutions

# perl -pi.org -e'BEGIN{$/=undef}s{(\A|\n)(Test,1\n)Code,\n(Test,2\n)}{$1$2$3}g' file

Enjoy, Have FUN! H.Merijn

[Pando]

Hi Procura,

thanks for the input.
what if i dont want to have a backup copy?
what should be the perl command / syntax?
thanks!

[H.Merijn Brand (procura]

just leave out the .org

# perl -pi -e'....' file

Enjoy, Have FUN! H.Merijn

[Sandman!]

# ex -s +"/^Code/d|wq" inputfile

[Pando]

Hello Procura,

# perl -pi -e'/^Code,$/ or print' file

but the results was:

Test,1
Test,1
Code,
Test,2
Test,2

It does nor remove the Code, but added another line? I might have understood you.

[twang]

use the sed editor:
# sed '/Code/ d' source_file target_file

Hope it can help
twang

[H.Merijn Brand (procura]

I've made that error here before :(

# perl -ni -e'/^Code,$/ or print' file

it is -ni, not -pi
Mea Culpa

Enjoy, Have FUN! H.Merijn