AH ! .. that will do it :-)
I still keep forgetting there is the posix regexp's
On Sun, Jul 5, 2015 at 9:12 AM, Rich Shepard
wrote:
> On Sun, 5 Jul 2015, Pete Lancashire wrote:
>
> > Just out of curiosity can I get a copy of the file, and what version of
> > grep are you using ?
>
> Pete,
>
>
On Sun, 5 Jul 2015, Pete Lancashire wrote:
> Just out of curiosity can I get a copy of the file, and what version of
> grep are you using ?
Pete,
My error: I was looking at the wrong portion of the data file; the first
character in the data section us U, not P. The uppercase P is how the code
Rich,
Just out of curiosity can I get a copy of the file, and what version of
grep are you using ?
-pete
On Sun, Jul 5, 2015 at 7:35 AM, Rich Shepard
wrote:
> On Sun, 5 Jul 2015, Rich Shepard wrote:
>
> > station on the mainstem Humboldt River. The first 212 lines of the 851
> lines
> > in the
On Sun, 5 Jul 2015, Rich Shepard wrote:
> station on the mainstem Humboldt River. The first 212 lines of the 851 lines
> in the file are comments; the 213th line is the header.
Mis-remembered: It is the first 612 lines that are comments and the 613th
line that contains column headers.
Rich
__
On Sat, 4 Jul 2015, Galen Seitz wrote:
> galens@lion:~$ grep -c '^P' test.txt
> 7
> galens@lion:~$ grep -c '^P[0-9]' test.txt
> 5
> galens@lion:~$ grep -c '^P[0-9]\{5\}' test.txt
> 3
> galens@lion:~$ grep --version
> GNU grep 2.6.3
galen,
Thank you. I had tried all those flavors and grep -c r
On 07/04/15 17:29, Rich Shepard wrote:
> On Sat, 4 Jul 2015, Pete Lancashire wrote:
>
>> $ cat p | egrep -cE '^P[[:digit:]]{5}'
>> 4
>
> [rshepard@salmo ~]$ cat p | egrep -cE '^P[[:digit:]]{5}' hrwq.dat
> cat: p: No such file or directory
> 0
> [rshepard@salmo ~]$ cat hrwq.dat | egrep -cE '^P[[:d
On Sat, 4 Jul 2015, David Fleck wrote:
> Try removing the backslashes:
> egrep -cE "^P[[:digit:]]{5}"
> That works for me.
David,
That was one of the first flavors I tried; still doesn't work:
[rshepard@salmo ~]$ egrep -cE "^P[[:digit:]]{5}" hrwq.dat
0
After a number of futile attempts
On Sat, 4 Jul 2015, Pete Lancashire wrote:
> $ cat p | egrep -cE '^P[[:digit:]]{5}'
> 4
[rshepard@salmo ~]$ cat p | egrep -cE '^P[[:digit:]]{5}' hrwq.dat
cat: p: No such file or directory
0
[rshepard@salmo ~]$ cat hrwq.dat | egrep -cE '^P[[:digit:]]{5}'
0
Still no joy. Let's let it rest.
Thanks
On Sat, 2015-07-04 at 19:28 -0400, Pete Lancashire wrote:
> To HOT to think
>
> don't forget to end the regexp stop with a non-digit if you dont
> P12345 will pass.
>
> On Sat, Jul 4, 2015 at 7:25 PM, Pete Lancashire
> wrote:
>
> > Don't use the back slash, and use single quotes to force all th
D**M I've got to stop using this F gmail and get back to basics
$ cat p | egrep -cE '^P[[:digit:]]{5}'
4
On Sat, Jul 4, 2015 at 7:52 PM, Pete Lancashire
wrote:
>
> $ cat p
> P12345
> P123
> P12
> P1
> S1
> S12
> S123
> S1234
> S12345
> P1234
> P123456
> P1234z
> P12345a
> P12345abc
>
> $
$ cat p
P12345
P123
P12
P1
S1
S12
S123
S1234
S12345
P1234
P123456
P1234z
P12345a
P12345abc
$ cat p | egrep -ce '^P[[:digit:]]{5}'
4
$ cat p | grep -ce '^P[[:digit:]]{5}'
0
OH OH .. should be (upper case) E :-)
$ cat p | grep -ce '^P[[:digit:]]{5}'
0
On Sat, Jul 4, 2015 at 7:43 PM, Rich Shep
On Sat, 4 Jul 2015, Pete Lancashire wrote:
> don't forget to end the regexp stop with a non-digit if you dont
> P12345 will pass.
There is content after the Pn; all I want is a count of the number of
lines beginning with Pn.
Rich
___
PLUG ma
On Sat, 4 Jul 2015, Pete Lancashire wrote:
> Don't use the back slash, and use single quotes to force all the
> expression to go to egrep directiy
Pete,
First I tried without the backslashes but my reading of the man page
caused me to try. Didn't work either way.
$ grep -ce '^P[[:digit:]]{5}
To HOT to think
don't forget to end the regexp stop with a non-digit if you dont
P12345 will pass.
On Sat, Jul 4, 2015 at 7:25 PM, Pete Lancashire
wrote:
> Don't use the back slash, and use single quotes to force all the
> expression to go to egrep directiy
>
> -pete happy HOT 4th
>
> On Sat, J
Don't use the back slash, and use single quotes to force all the expression
to go to egrep directiy
-pete happy HOT 4th
On Sat, Jul 4, 2015 at 7:09 PM, Rich Shepard
wrote:
>I have an 851 line data file in which certain lines begin with P
> followed
> by 5 digits. I want to count the number
I have an 851 line data file in which certain lines begin with P followed
by 5 digits. I want to count the number of those lines. Despite reading the
grep man page I am missing the correct syntax.
The expression
egrep -cE "^P[[:digit:]]\{5\}" hrwq.dat
returns a count of zero (0). So
16 matches
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