Try:
( or stick | tail -1 onto the end of your string of commands )
That works great . Can you please explain how it ignores "LVDS1". I know it checks field 2 for connected with $2=="connected", then it stores field 1 this {s=$1}, then it prints field 1 with this END{print s}. I just can't figure out how it ignores "LVDS1".
Quote:
Originally Posted by Habitual
and
works also.
When I run this I get:
Did you do something else? I would still have to pass it to awk because I want TV1.
Using AWK, while I am reading the file, I am separating fields based on the ':' & using NF. I also would like to mention line numbers from the file they are originally from.
How would I take out the line number for them?
I am trying something like following ,
awk -F":" '{
j=1
for (i=1;... (1 Reply)
The awk command awk -F: '{print $1}' test1 gives the first columns of all the lines in file ,is there some command to get a particular column from particular line .
Any help is appreciated.
thanks arif (4 Replies)
Hi Chaps,
I'm trying to print the line number of a comma delimited file where the second field in the line is blank using AWK. Here is the code I have so far where am I going wrong. It is the last column in the file.
nawk -v x==0 'BEGIN {FS=",";OFS=","} x++ if ($2 == " ") print $x' bob.tst
... (3 Replies)
I am grep-ing the word "this" in all the files in my dir.
$ awk '/this/' *
this is
this
this
I want the output as:
1)this is
2)this
3)this
How can I achieve this ? Please help.
HTH,
jkl_jkl (4 Replies)
Hi.
I have a script wich reads 1 file and generates 4. If the original file has 10 lines the the sum of the 4 generated files must have the 10 original lines. So far this works.
Now what I need is to numerate the lines wtithin each generated file.
I tried with NR but it prints the line... (2 Replies)
Hi. Is there a way in awk to show all lines between a line number and the next line containing a particular regex? We can do these, of course:
awk '/regex1/,/regex2/' filename
awk 'FNR > X && FNR < Y' filename
But can they be combined? Thanks. (3 Replies)
Hello Everyone.
I am trying to display contains of a file from a specific line to a specific line(let say, from line number 3 to line number 5). For this I got the shell script as shown below:
if ; then
if ; then
tail +$1 $3 | head -n $2
else
... (5 Replies)
I Have file1 with below lines :
#HostNameSelection=0 :NotUsed
#HostNameSelection=1 :Automatic
#HostNameSelection=3 :NotForced
I have file2 which has similar lines but with different values
I want to copy the changes from file1 to file2 ,line by line only if line begins with '#'.
for... (7 Replies)
Hi
I want to use awk to match where field 3 contains a number within string - then print the line and just the number as a new field.
The source file is pipe delimited and looks something like
1|net|ABC Letr1|1530|||
1|net|EXP_1040 ABC|1121|||
1|net|EXP_TG1224|1122|||
1|net|R_North|1123|||... (5 Replies)
Discussion started by: Mudshark
5 Replies
LEARN ABOUT PLAN9
grep
GREP(1) General Commands Manual GREP(1)NAME
grep - search a file for a pattern
SYNOPSIS
grep [ option ... ] pattern [ file ... ]
DESCRIPTION
Grep searches the input files (standard input default) for lines (with newlines excluded) that match the pattern, a regular expression as
defined in regexp(6). Normally, each line matching the pattern is `selected', and each selected line is copied to the standard output.
The options are
-c Print only a count of matching lines.
-h Do not print file name tags (headers) with output lines.
-i Ignore alphabetic case distinctions. The implementation folds into lower case all letters in the pattern and input before interpre-
tation. Matched lines are printed in their original form.
-l (ell) Print the names of files with selected lines; don't print the lines.
-L Print the names of files with no selected lines; the converse of -l.
-n Mark each printed line with its line number counted in its file.
-s Produce no output, but return status.
-v Reverse: print lines that do not match the pattern.
Output lines are tagged by file name when there is more than one input file. (To force this tagging, include /dev/null as a file name
argument.)
Care should be taken when using the shell metacharacters $*[^|()= and newline in pattern; it is safest to enclose the entire expression in
single quotes '...'.
SOURCE
/sys/src/cmd/grep.c
SEE ALSO ed(1), awk(1), sed(1), sam(1), regexp(6)DIAGNOSTICS
Exit status is null if any lines are selected, or non-null when no lines are selected or an error occurs.
GREP(1)