I have been reading through the sed one liners, trying to understand what is happening.
# delete the last 2 lines of a file
sed 'N;$!P;$!D;$d'
The above will delete the last 2 line of a file. I tried analyzing what happens. And I got lost :(
This is what I understood so far from the... (2 Replies)
First of all, I know this can be more eassily done with perl or other scripting languages but, that's not the issue. I need this in sed. (or wander if it's possible )
I got a file (trace file to recreate the control file from oracle for the dba boys)
which contains
some lines
another line... (11 Replies)
Hi,
I'm very new to Sed and I have a very large file that contains data in the following way
(*064) 1 4 10
(*064) simulation time = 0.12000E-05
(*064) 1 2 10
(*064) 1 3 10Essentially what I want to do it delete every line that starts with
'(*064) 1'I tried the following,
... (2 Replies)
Hi,
I would like to delete lines in /etc/hosts on few workstations, basically I want to delete all the lines for a list of machines like this :
for HOST in $(cat stations.lst |uniq)
do
# echo -n "$HOST"
if ping -c 1 $HOST > /dev/null 2>&1
then
HOSTNAME_val=`rsh $HOST "sed... (3 Replies)
Sample file:
This is line one,
this is another line,
this is the PRIMARY INDEX line
l ;
This is another line
The command should find the line with “PRIMARY INDEX” and remove the last character from the line preceding it (in this case , comma) and remove the first character from the line... (5 Replies)
Hi
I need to delete lines from a file which are after pattern1 and between pattern 2 and patter3, as below:
aaaaaaaa
bbbbbbbb
pattern1
cdededed
ddededed
pattern2
fefefefe <-----Delete this line
efefefef <-----Delete this line
pattern3
adsffdsd
huaserew
Please can you suggest... (6 Replies)
Hi friends,
This is sed & awk type question.
I have a text file which has numbers spread all over the file. I want to sum the series of numbers whenever i find it and produce an output file with the sum. For example
###start of input text file ####
abc
def
ghi
1
2
3
4
kjld
random... (3 Replies)
Hi Members,
This is my first post in this forum.
I want to do is match form feed lines one by one in a file and delete the next n lines (ex-3 lines) with the form feed character
Eg - Files looks like
Data 1
Data 2
Data 3
FF
Hdr1
Hdr2
Hdr3
Data4
Data5
FF
Hdr1
Hdr2
Hdr3 (9 Replies)
Hi Guys
I am looking for a solution to one problem to remove parentheses in a range of lines.
Input file
module bist_logic_inst(a, ab , dhd, dhdh , djdj, hdh, djjd, jdj, dhd, dhp, dk
);
input a;
input ab;
input dhd;
input djdj;
input dhd;
output hdh;
output djjd;
output jdj;... (5 Replies)
Discussion started by: kshitij
5 Replies
LEARN ABOUT OPENDARWIN
lipo
LIPO(1) General Commands Manual LIPO(1)NAME
lipo - create or operate on fat files
SYNOPSIS
lipo [-info] [-detailed_info] [-arch arch_type input_file] ... [ input_file] ... [-create] [-thin arch_type] [-replace arch_type file-
name] ... [-remove arch_type] ... [-extract arch_type] ... [-extract_family arch_type] ... [-output output_file] [-segalign arch_type
value] ...
DESCRIPTION
The lipo command creates or operates on ``fat'' (multi-architecture) files. It only ever produces one output file, and never alters the
input file. The operations that lipo performs are: listing the architecture types in a fat file; creating a single fat file from one or
more input files; thinning out a single fat file to one specified architecture type; and extracting, replacing, and/or removing architec-
tures types from the input file to create a single new fat output file.
Only one option can be specified, with the exception of -arch, -output, and -segalign, which are used in combination with other options.
The input_file argument is required, and only the -create option allows more than one input_file to be specified. The -output flag must be
used, except with the -info and -detailed_info flags.
The arch_type arguments may be any of the supported architecture names listed in the man page arch(3)exceptforVAXandMips.
OPTIONS -info Briefly list the architecture types in the input fat file (just the names of each architecture).
-detailed_info
Display a detailed list of the architecture types in the input fat file (all the the information in the fat header, for each archi-
tecture in the file).
-arch arch_type input_file
Tells lipo that input_file contains the specified architecture type. The -arch arch_type specification is unnecessary if input_file
is an object file, a fat file, or some other file whose architecture(s) lipo can figure out.
-output output_file
Specifies its argument to be the output file.
-create
Take the input files (or file) and create one fat output file from them.
-thin arch_type
Take one input file and create a thin output file with the specified arch_type.
-replace arch_type file_name
Take one fat input file; in the output file, replace the arch_type contents of the input file with the contents of the specified
file_name.
-remove arch_type
Take one fat input file and remove the arch_type from that fat file, placing the result in the output file.
-extract arch_type
Take one fat input file and copy the arch_type from that fat file into a fat output file containing only that architecture.
-extract_family arch_type
Take one fat input file and copy all of the arch_types for the family that arch_type is in from that fat file into an output file
containing only those architectures. The file will be thin if only one architecture is found or fat otherwise.
-segalign arch_type value
Set the segment alignment of the specified arch_type when creating a fat file containing that architecture. value is a hexadecimal
number that must be an integral power of 2. This is only needed when lipo can't figure out the alignment of an input file (cur-
rently not an object file), or when it guesses at the alignment too conservatively. The default for files unknown to lipo is 0
(2^0, or an alignment of one byte), and the default alignment for archives is 4 (2^2, or 4-byte alignment).
SEE ALSO arch(3)Apple Computer, Inc. October 23, 1997 LIPO(1)