Hi,
I have file 1.txt with following entries as shown:
0152364|134444|10.20.30.40|015236433
0233654|122555|10.20.30.50|023365433
**
**
**
In file 2.txt I have the following entries as shown:
0152364|134444|10.20.30.40|015236433
0233654|122555|10.20.30.50|023365433... (4 Replies)
I have a file that will sometimes contain a pattern. The pattern is this:
W/D FRM CHK 00
I want to find any lines with this pattern, delete those lines, and also delete the line above and the line below. (1 Reply)
I have a file that will sometimes contain a pattern. The pattern is this:
FRM CHK 0000
I want to find any lines with this pattern, delete those lines, and also delete the line above and the line below. (4 Replies)
I am trying to delete the line with pattern and the next line. Found the below command in forum which also deleted the previous line. how should i modify that to make sure that only the line with pattern and the next line are deleted but not the previous line?
awk '/key... (1 Reply)
Hi,
Before insert, delete everything. If ' available before insert, then we need to keep this.
Input:
====
l_s := ' INSERT INTO TEST1'
INSERT INTO TEST2
Output:
====
'INSERT INTO TEST'
INSERT INTO TEST2 (2 Replies)
if the given pattern exists in the file with the very next line starting and ending
with the same pattern , delete the line that starts and ends with the given pattern.
So upon running on this file
=====================
hai people<PATTERN> we had
<PATTERN>a lot of fun<PATTERN>
... (1 Reply)
if the given pattern exists in the file with the very next line starting and ending
with the same pattern , delete the line that starts and ends with the given pattern.
So upon running on this file
=====================
hai people<PATTERN> we had
<PATTERN>a lot of fun<PATTERN>
... (1 Reply)
Hi all,
I'm trying to delete line contains pattern from file using ex editor
I have tried something like this
user@host ~ $/usr/bin/echo "/$pattern/d\nwq!"| /usr/bin/ex -s file.txt
This line is from script
but it doesn't work
any idea (4 Replies)
here is what i want to achieve.. i have a file with below contents
cat fileName
blah blah blah
.
.DROP this
REJECT that
.
--sport 7800 -j REJECT --reject-with icmp-port-unreachable
--dport 7800 -j REJECT --reject-with icmp-port-unreachable
.
.
.
more blah blah blah
--dport 3306... (14 Replies)
Discussion started by: vivek d r
14 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)