Sed reqular expression question.

30/10/2007, 21h48

Hi.

I have a list of IP addresses (one per line) in a text file. I need
to surround them with pipe symbols and include a single space in
between the first and last number.

For example:

[before]
192.168.1.1
<space>
192.168.1.2
192.168.1.3
<space>
192.168.1.4
192.168.1.5

[after]
| 192.168.1.1 |
| 192.168.1.2 |
| 192.168.1.3 |
| 192.168.1.4 |
| 192.168.1.5 |

I tried a few different sed line that didn't work out so well

Thanks in advance....

30/10/2007, 21h56

Thus spake mostro713@gmail.com (mostro713@gmail.com):
> I have a list of IP addresses (one per line) in a text file. I need
> to surround them with pipe symbols and include a single space in
> between the first and last number.
>
> For example:
>
> [before]
> 192.168.1.1
> <space>
> 192.168.1.2
> 192.168.1.3
> <space>
> 192.168.1.4
> 192.168.1.5
>
> [after]
>| 192.168.1.1 |
>| 192.168.1.2 |
>| 192.168.1.3 |
>| 192.168.1.4 |
>| 192.168.1.5 |
>
> I tried a few different sed line that didn't work out so well

Means "<space>" a empty line? If so use
sed '/^$/d;s/^/| /;s/$/ |/' file
Otherwise use
sed 's/^/| /;s/$/ |/' file
--
{ \|/ ______ \|/ Access denieded | Christian 'strcat' Schneider }
{ "@' / , . \ `@" Nah Nah Nah :p | http://www.strcat.de/ }
{ /__| \____/ |__\ | GnuPG-Key-ID: 47E322CE }
{ \___U__/ | http://strcat.de/chris.gpg }

30/10/2007, 22h10

On 10/30/2007 3:48 PM, mostro713@gmail.com wrote:
> Hi.
>
> I have a list of IP addresses (one per line) in a text file. I need
> to surround them with pipe symbols and include a single space in
> between the first and last number.
>
> For example:
>
> [before]
> 192.168.1.1
> <space>
> 192.168.1.2
> 192.168.1.3
> <space>
> 192.168.1.4
> 192.168.1.5
>
> [after]
> | 192.168.1.1 |
> | 192.168.1.2 |
> | 192.168.1.3 |
> | 192.168.1.4 |
> | 192.168.1.5 |
>
> I tried a few different sed line that didn't work out so well
>
> Thanks in advance....
>

sed 's/$.*$/| \1 |/' file

30/10/2007, 22h14

2007-10-30, 21:56(+01), Christian Schneider:
> Thus spake mostro713@gmail.com (mostro713@gmail.com):
>> I have a list of IP addresses (one per line) in a text file. I need
>> to surround them with pipe symbols and include a single space in
>> between the first and last number.
>>
>> For example:
>>
>> [before]
>> 192.168.1.1
>> <space>
>> 192.168.1.2
>> 192.168.1.3
>> <space>
>> 192.168.1.4
>> 192.168.1.5
>>
>> [after]
>>| 192.168.1.1 |
>>| 192.168.1.2 |
>>| 192.168.1.3 |
>>| 192.168.1.4 |
>>| 192.168.1.5 |
>>
>> I tried a few different sed line that didn't work out so well
>
> Means "<space>" a empty line? If so use
> sed '/^$/d;s/^/| /;s/$/ |/' file

Or
sed -n 's/..*/| & |/p' file

> Otherwise use
> sed 's/^/| /;s/$/ |/' file

Or
sed 's/.*/| & |/' file

or

paste -d '| |' - - file - - < /dev/null

--
Stéphane

31/10/2007, 01h41

On Oct 30, 4:56 pm, Christian Schneider <str...@gmx.net> wrote:
> Thus spake mostro...@gmail.com (mostro...@gmail.com):
>
>
>
> > I have a list of IP addresses (one per line) in a text file. I need
> > to surround them with pipe symbols and include a single space in
> > between the first and last number.
>
> > For example:
>
> > [before]
> > 192.168.1.1
> > <space>
> > 192.168.1.2
> > 192.168.1.3
> > <space>
> > 192.168.1.4
> > 192.168.1.5
>
> > [after]
> >| 192.168.1.1 |
> >| 192.168.1.2 |
> >| 192.168.1.3 |
> >| 192.168.1.4 |
> >| 192.168.1.5 |
>
> > I tried a few different sed line that didn't work out so well
>
> Means "<space>" a empty line? If so use
> sed '/^$/d;s/^/| /;s/$/ |/' file
> Otherwise use
> sed 's/^/| /;s/$/ |/' file
> --
> { \|/ ______ \|/ Access denieded | Christian 'strcat' Schneider }
> { "@' / , . \ `@" Nah Nah Nah :p | http://www.strcat.de/ }
> { /__| \____/ |__\ | GnuPG-Key-ID: 47E322CE }
> { \___U__/ | http://strcat.de/chris.gpg }

sed '/^$/d;s/^/| /;s/$/ |/' worked for me.. Now I have to read the
man page to figure it out.

Thank you.

31/10/2007, 02h10

Thus spake mostro713@gmail.com (mostro713@gmail.com):
> On Oct 30, 4:56 pm, Christian Schneider <str...@gmx.net> wrote:
>> Thus spake mostro...@gmail.com (mostro...@gmail.com):
>>
>> > I have a list of IP addresses (one per line) in a text file. I need
>> > to surround them with pipe symbols and include a single space in
>> > between the first and last number.
[...]
>> Means "<space>" a empty line? If so use
>> sed '/^$/d;s/^/| /;s/$/ |/' file
>> Otherwise use
>> sed 's/^/| /;s/$/ |/' file
[...]
> sed '/^$/d;s/^/| /;s/$/ |/' worked for me.. Now I have to read the
> man page to figure it out.

/^$/d deletes all blank lines from a file. ^ matching the null string at
the beginning of a line and $ the null string at the end of a line. "d"
is "delete".
The semicolon is a "seperator" for the next directive "s/^/| /" which
substitutes ("s") the beginning of each line with "| " ("s/$/ |/" for
the end of each line).
btw. "info sed" is more detailed as the manpage.
--
{ \|/ ______ \|/ Access denieded | Christian 'strcat' Schneider }
{ "@' / , . \ `@" Nah Nah Nah :p | http://www.strcat.de/ }
{ /__| \____/ |__\ | GnuPG-Key-ID: 47E322CE }
{ \___U__/ | http://strcat.de/chris.gpg }

31/10/2007, 10h53

On Oct 30, 9:10 pm, Christian Schneider <str...@gmx.net> wrote:
> Thus spake mostro...@gmail.com (mostro...@gmail.com):
>
> > On Oct 30, 4:56 pm, Christian Schneider <str...@gmx.net> wrote:
> >> Thus spake mostro...@gmail.com (mostro...@gmail.com):
>
> >> > I have a list of IP addresses (one per line) in a text file. I need
> >> > to surround them with pipe symbols and include a single space in
> >> > between the first and last number.
> [...]
> >> Means "<space>" a empty line? If so use
> >> sed '/^$/d;s/^/| /;s/$/ |/' file
> >> Otherwise use
> >> sed 's/^/| /;s/$/ |/' file
> [...]
> > sed '/^$/d;s/^/| /;s/$/ |/' worked for me.. Now I have to read the
> > man page to figure it out.

>
> /^$/d deletes all blank lines from a file. ^ matching the null string at
> the beginning of a line and $ the null string at the end of a line. "d"
> is "delete".
> The semicolon is a "seperator" for the next directive "s/^/| /" which
> substitutes ("s") the beginning of each line with "| " ("s/$/ |/" for
> the end of each line).
> btw. "info sed" is more detailed as the manpage.
> --
> { \|/ ______ \|/ Access denieded | Christian 'strcat' Schneider }
> { "@' / , . \ `@" Nah Nah Nah :p | http://www.strcat.de/ }
> { /__| \____/ |__\ | GnuPG-Key-ID: 47E322CE }
> { \___U__/ | http://strcat.de/chris.gpg }

Thanks for the great explanation. Yes, the complete manual is where I
ended up although your paragraphs above is a much better explanation
to an example..

30/10/2007, 21h48	#1
mostro713@gmail.com Messages: n/a Hébergeur:	Sed reqular expression question. Hi. I have a list of IP addresses (one per line) in a text file. I need to surround them with pipe symbols and include a single space in between the first and last number. For example: [before] 192.168.1.1 <space> 192.168.1.2 192.168.1.3 <space> 192.168.1.4 192.168.1.5 [after] \| 192.168.1.1 \| \| 192.168.1.2 \| \| 192.168.1.3 \| \| 192.168.1.4 \| \| 192.168.1.5 \| I tried a few different sed line that didn't work out so well Thanks in advance....

30/10/2007, 21h56	#2
Christian Schneider Messages: n/a Hébergeur:	Re: Sed reqular expression question. Thus spake mostro713@gmail.com (mostro713@gmail.com): > I have a list of IP addresses (one per line) in a text file. I need > to surround them with pipe symbols and include a single space in > between the first and last number. > > For example: > > [before] > 192.168.1.1 > <space> > 192.168.1.2 > 192.168.1.3 > <space> > 192.168.1.4 > 192.168.1.5 > > [after] >\| 192.168.1.1 \| >\| 192.168.1.2 \| >\| 192.168.1.3 \| >\| 192.168.1.4 \| >\| 192.168.1.5 \| > > I tried a few different sed line that didn't work out so well Means "<space>" a empty line? If so use sed '/^$/d;s/^/\| /;s/$/ \|/' file Otherwise use sed 's/^/\| /;s/$/ \|/' file -- { \\|/ ______ \\|/ Access denieded \| Christian 'strcat' Schneider } { "@' / , . \ `@" Nah Nah Nah :p \| http://www.strcat.de/ } { /__\| \____/ \|__\ \| GnuPG-Key-ID: 47E322CE } { \___U__/ \| http://strcat.de/chris.gpg }

30/10/2007, 22h10	#3
Ed Morton Messages: n/a Hébergeur:	Re: Sed reqular expression question. On 10/30/2007 3:48 PM, mostro713@gmail.com wrote: > Hi. > > I have a list of IP addresses (one per line) in a text file. I need > to surround them with pipe symbols and include a single space in > between the first and last number. > > For example: > > [before] > 192.168.1.1 > <space> > 192.168.1.2 > 192.168.1.3 > <space> > 192.168.1.4 > 192.168.1.5 > > [after] > \| 192.168.1.1 \| > \| 192.168.1.2 \| > \| 192.168.1.3 \| > \| 192.168.1.4 \| > \| 192.168.1.5 \| > > I tried a few different sed line that didn't work out so well > > Thanks in advance.... > sed 's/\(.*\)/\| \1 \|/' file

30/10/2007, 22h14	#4
Stephane CHAZELAS Messages: n/a Hébergeur:	Re: Sed reqular expression question. 2007-10-30, 21:56(+01), Christian Schneider: > Thus spake mostro713@gmail.com (mostro713@gmail.com): >> I have a list of IP addresses (one per line) in a text file. I need >> to surround them with pipe symbols and include a single space in >> between the first and last number. >> >> For example: >> >> [before] >> 192.168.1.1 >> <space> >> 192.168.1.2 >> 192.168.1.3 >> <space> >> 192.168.1.4 >> 192.168.1.5 >> >> [after] >>\| 192.168.1.1 \| >>\| 192.168.1.2 \| >>\| 192.168.1.3 \| >>\| 192.168.1.4 \| >>\| 192.168.1.5 \| >> >> I tried a few different sed line that didn't work out so well > > Means "<space>" a empty line? If so use > sed '/^$/d;s/^/\| /;s/$/ \|/' file Or sed -n 's/../\| & \|/p' file > Otherwise use > sed 's/^/\| /;s/$/ \|/' file Or sed 's/./\| & \|/' file or paste -d '\| \|' - - file - - < /dev/null -- Stéphane

31/10/2007, 01h41	#5
mostro713@gmail.com Messages: n/a Hébergeur:	Re: Sed reqular expression question. On Oct 30, 4:56 pm, Christian Schneider <str...@gmx.net> wrote: > Thus spake mostro...@gmail.com (mostro...@gmail.com): > > > > > I have a list of IP addresses (one per line) in a text file. I need > > to surround them with pipe symbols and include a single space in > > between the first and last number. > > > For example: > > > [before] > > 192.168.1.1 > > <space> > > 192.168.1.2 > > 192.168.1.3 > > <space> > > 192.168.1.4 > > 192.168.1.5 > > > [after] > >\| 192.168.1.1 \| > >\| 192.168.1.2 \| > >\| 192.168.1.3 \| > >\| 192.168.1.4 \| > >\| 192.168.1.5 \| > > > I tried a few different sed line that didn't work out so well > > Means "<space>" a empty line? If so use > sed '/^$/d;s/^/\| /;s/$/ \|/' file > Otherwise use > sed 's/^/\| /;s/$/ \|/' file > -- > { \\|/ ______ \\|/ Access denieded \| Christian 'strcat' Schneider } > { "@' / , . \ `@" Nah Nah Nah :p \| http://www.strcat.de/ } > { /__\| \____/ \|__\ \| GnuPG-Key-ID: 47E322CE } > { \___U__/ \| http://strcat.de/chris.gpg } sed '/^$/d;s/^/\| /;s/$/ \|/' worked for me.. Now I have to read the man page to figure it out. Thank you.

31/10/2007, 02h10	#6
Christian Schneider Messages: n/a Hébergeur:	Re: Sed reqular expression question. Thus spake mostro713@gmail.com (mostro713@gmail.com): > On Oct 30, 4:56 pm, Christian Schneider <str...@gmx.net> wrote: >> Thus spake mostro...@gmail.com (mostro...@gmail.com): >> >> > I have a list of IP addresses (one per line) in a text file. I need >> > to surround them with pipe symbols and include a single space in >> > between the first and last number. [...] >> Means "<space>" a empty line? If so use >> sed '/^$/d;s/^/\| /;s/$/ \|/' file >> Otherwise use >> sed 's/^/\| /;s/$/ \|/' file [...] > sed '/^$/d;s/^/\| /;s/$/ \|/' worked for me.. Now I have to read the > man page to figure it out. /^$/d deletes all blank lines from a file. ^ matching the null string at the beginning of a line and $ the null string at the end of a line. "d" is "delete". The semicolon is a "seperator" for the next directive "s/^/\| /" which substitutes ("s") the beginning of each line with "\| " ("s/$/ \|/" for the end of each line). btw. "info sed" is more detailed as the manpage. -- { \\|/ ______ \\|/ Access denieded \| Christian 'strcat' Schneider } { "@' / , . \ `@" Nah Nah Nah :p \| http://www.strcat.de/ } { /__\| \____/ \|__\ \| GnuPG-Key-ID: 47E322CE } { \___U__/ \| http://strcat.de/chris.gpg }

31/10/2007, 10h53	#7
mostro713@gmail.com Messages: n/a Hébergeur:	Re: Sed reqular expression question. On Oct 30, 9:10 pm, Christian Schneider <str...@gmx.net> wrote: > Thus spake mostro...@gmail.com (mostro...@gmail.com): > > > On Oct 30, 4:56 pm, Christian Schneider <str...@gmx.net> wrote: > >> Thus spake mostro...@gmail.com (mostro...@gmail.com): > > >> > I have a list of IP addresses (one per line) in a text file. I need > >> > to surround them with pipe symbols and include a single space in > >> > between the first and last number. > [...] > >> Means "<space>" a empty line? If so use > >> sed '/^$/d;s/^/\| /;s/$/ \|/' file > >> Otherwise use > >> sed 's/^/\| /;s/$/ \|/' file > [...] > > sed '/^$/d;s/^/\| /;s/$/ \|/' worked for me.. Now I have to read the > > man page to figure it out. > > /^$/d deletes all blank lines from a file. ^ matching the null string at > the beginning of a line and $ the null string at the end of a line. "d" > is "delete". > The semicolon is a "seperator" for the next directive "s/^/\| /" which > substitutes ("s") the beginning of each line with "\| " ("s/$/ \|/" for > the end of each line). > btw. "info sed" is more detailed as the manpage. > -- > { \\|/ ______ \\|/ Access denieded \| Christian 'strcat' Schneider } > { "@' / , . \ `@" Nah Nah Nah :p \| http://www.strcat.de/ } > { /__\| \____/ \|__\ \| GnuPG-Key-ID: 47E322CE } > { \___U__/ \| http://strcat.de/chris.gpg } Thanks for the great explanation. Yes, the complete manual is where I ended up although your paragraphs above is a much better explanation to an example..

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