05-11-2009
Ofcourse nothing will change in the actual file .
You need to redirect the output of the command to some other file to store the data.
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1. Shell Programming and Scripting
the file contains the follwoing lines
/*
* Copyright (C) 1995-1996 by XXX Corporation. This program
* contains proprietary and confidential information. All rights reserved
* except as may be permitted by prior written consent.
*
* $Id: xxx_err.h,v 1.10 2001/07/26 18:48:34 zzzz $
... (1 Reply)
Discussion started by: radha.kalivar
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2. Shell Programming and Scripting
i have to search a string and replace with multiple lines.
example
Input
echo 'sample text'
echo 'college days'
output
echo 'sample text'
echo 'information on students'
echo 'emp number'
echo 'holidays'
i have to search a word college and replace the multiple lines
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3. Shell Programming and Scripting
I am new to linux and would like to modify the contents of a file preferably using a one line. The situation is as follows
<start>
some lines
"I am the string"
"replace string"
more lines here
<end>
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4. Shell Programming and Scripting
Can someone tell me how I can do this?
e.g:
Say file1.txt contains:
today is monday
the 22 of
NOVEMBER
2010
and file2.txt contains:
the
11th
month
of
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5. Shell Programming and Scripting
Can someone tell me how I can do this?
e.g:
a=$(echo -e wert trewt ertert ertert ertert erttert
erterte
rterter
tertertert
ert)
How do i replace the STRING with $a?
I try this:
sed -i 's/STRING/'"$a"'/g' filename.ext
but this don' t work (2 Replies)
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6. Shell Programming and Scripting
hey guys,
I tried searching but most 'search and replace' questions are related to one liners.
Say I have a file to be replaced that has the following:
$ cat testing.txt
TESTING
AAA
BBB
CCC
DDD
EEE
FFF
GGG
HHH
ENDTESTING
This is the input file: (3 Replies)
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7. Shell Programming and Scripting
Hey guys. I know pratically 0 about Linux, so could anyone please give me instructions on how to accomplish this ?
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Hi All,
I have a input file as sample below
<this is not starting of file>
record
line1
line2
line3
end
line4
line5
record
line6
line7
line8
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Hi
I know sed and awk has options to give range of line numbers, but
I need to replace pattern in specific lines
Something like
sed -e '1s,14s,26s/pattern/new pattern/' file name
Can somebody help me in this....
I am fine with see/awk/perl
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10. Shell Programming and Scripting
Hello Guys,
I need to replace a string with multiple lines.
For eg:-
ABC,DEF,GHI,JKL,MNO,PQR,STU
need to convert the above as below:-
ABC,DEF,
GHI1
GHI2
GHI3,
JKL,MNO,
PQR1
PQR2
PQR3,
STU
i have tried using code as:- (2 Replies)
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LEARN ABOUT MOJAVE
tc-mirred
Mirror/redirect action in tc(8) Linux Mirror/redirect action in tc(8)
NAME
mirred - mirror/redirect action
SYNOPSIS
tc ... action mirred DIRECTION ACTION [ index INDEX ] dev DEVICENAME
DIRECTION := { ingress | egress }
ACTION := { mirror | redirect }
DESCRIPTION
The mirred action allows packet mirroring (copying) or redirecting (stealing) the packet it receives. Mirroring is what is sometimes
referred to as Switch Port Analyzer (SPAN) and is commonly used to analyze and/or debug flows.
OPTIONS
ingress
egress Specify the direction in which the packet shall appear on the destination interface.
mirror
redirect
Define whether the packet should be copied (mirror) or moved (redirect) to the destination interface.
index INDEX
Assign a unique ID to this action instead of letting the kernel choose one automatically. INDEX is a 32bit unsigned integer greater
than zero.
dev DEVICENAME
Specify the network interface to redirect or mirror to.
EXAMPLES
Limit ingress bandwidth on eth0 to 1mbit/s, redirect exceeding traffic to lo for debugging purposes:
# tc qdisc add dev eth0 handle ffff: ingress
# tc filter add dev eth0 parent ffff: u32
match u32 0 0
action police rate 1mbit burst 100k conform-exceed pipe
action mirred egress redirect dev lo
Mirror all incoming ICMP packets on eth0 to a dummy interface for examination with e.g. tcpdump:
# ip link add dummy0 type dummy
# ip link set dummy0 up
# tc qdisc add dev eth0 handle ffff: ingress
# tc filter add dev eth0 parent ffff: protocol ip
u32 match ip protocol 1 0xff
action mirred egress mirror dev dummy0
Using an ifb interface, it is possible to send ingress traffic through an instance of sfq:
# modprobe ifb
# ip link set ifb0 up
# tc qdisc add dev ifb0 root sfq
# tc qdisc add dev eth0 handle ffff: ingress
# tc filter add dev eth0 parent ffff: u32
match u32 0 0
action mirred egress redirect dev ifb0
SEE ALSO
tc(8), tc-u32(8)
iproute2 11 Jan 2015 Mirror/redirect action in tc(8)