How can I exclude reading lines in a file that contains the following:
filesystem:/home/pach/liv_patches 128005120 88456640 37270758 71% /home/patches
That is, all lines that contain and begins with filesystem: should not be processed/read from a file (5 Replies)
Hi experts
I want the proper argument to the grep command so that I need to skip the first few lines(say first 10 lines) and print all the remaining instances of the grep output.
I tried to use grep -m 10 "search text" file*. But this gives the first 10 instances(lines) of the search string.... (7 Replies)
hi,
I have a shell script that searches for a particular pattern in all the files inside a directory, and gives the count of that pattern occurences in a file.
Now i should not count the pattern if it exists in side a { .... }, as shown below.
{
......
.....
.... PATTERN1.......... (1 Reply)
Hi,
I have a file:
file.txt
1 word
2 word
word
word
3 word
4 word
and I would like to create a set:
set number = `cut -d" " -f1 ${1}` #${1} is the text file
but it should only contain the lines which begin with numbers,
and another set which contains the lines which begin with... (10 Replies)
Im trying to ssh to a remote machine to grep 'x info' *.log and Im able to get the grep output as expected but "after" the policies (1st 14 lines) - I need to skip the first 14 lines.
Its SunOS.
Plz help??? (1 Reply)
Hi,
I have an awk code that reads an input file, checks the 4th column and tells if its fine.
#!/bin/ksh
{ if ($4 == 0)
print "fine"
else
print "some problem" }' FILENAME
My problem is that, I dont want to check the first 3 and last 3 lines.
This can be hard coded by using BEGIN and END... (9 Replies)
Hi Experts,
I am tryin to read a file and while doing so i need to skip the lines which start with a hash (#) char.
I thought of using a goto command but a lot of guys on this site say its not the good way to program. Moreover I am using a ksh shell which deos not support goto command.
... (4 Replies)
Hi,
I am running a script that connets to a list of servers with SSH and runs a command but I have some servers that are asking for password (authorized keys is not configured properly).
Is there any way to do so that if I get a prompt for password just skip that entry?
my script:
... (1 Reply)
Hello,
I am new to AWK and in UNIX in general. I am hoping you can help me out here.
Here is my data:
root@ubuntu:~# cat circuits.list
WORD1
AA
BB
CC
DD
Active
ISP1
ISP NAME1
XX-XXXXXX1
WORD1
AA
BB
CC (9 Replies)
I am trying to use awk skip each line with a ## or # and check each line after for STB= and if that value in greater than or = to 0.8, then at the end of line the text "STRAND BIAS" is written in else "GOOD".
So in the file of 4 entries attached.
awk tried:
awk NR > "##"' "#" -F"STB="... (6 Replies)
Discussion started by: cmccabe
6 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)