Need to delete a text block inside a file, that is marked with a start and an end pattern. Eg
do not delete
not delete
<tag1>
delete everything here
here
and here
and here...
<tag2>
do not delete
do not delete....
Believe sed is able to do this job but don't get it working.
... (1 Reply)
Input:
fstab is a configuration
file that contains information
of all the partitions
and storage devices
in your computer.
The file is located under /etc,
so the full path
to this file is /etc/fstab.
The >>>>> characters would be replaced by some texts.
For example if i run a... (5 Replies)
Hello all,
I have a large output file from which I would like to extract a single block of text.
An example block of text is shown below:
***** EQUILIBRIUM GEOMETRY LOCATED *****
COORDINATES OF ALL ATOMS ARE (ANGS)
ATOM CHARGE X Y Z
... (10 Replies)
I was reading a book on UNIX internals "The design of the UNIX Operating system." There are two memory structures that are confusing me:
1) Buffer cache
2) Inode cache
My questions are
1) Does a process get both buffer cache and Indoe cache allocated when it opens/creates a file?
2) if no,... (1 Reply)
Hi
I am looking for the way to delete the block of data for example
original file
line1
line2
line3
line4
line5
input file
line2
line3
original file should contain
line1
line4
line5 (3 Replies)
I have a "main" file which has blocks of data for each user defined by tags BEGIN and END.
BEGIN
ID_NUM:24879
USER:abc123
HOW:47M
CMD1:xyz1
CMD2:arp2
STATE:active
PROCESS:id60
END
BEGIN
ID_NUM:24880
USER:def123
HOW:4M
CMD1:xyz1
CMD2:xyz2
STATE:running
PROCESS:id64
END (7 Replies)
I want to process a file block by block using sed, and if that block does not contain two patterns, then that complete block has to be printed.
See below for the example data.
................................server 1...............................
running process 1
running... (8 Replies)
Hello all,
I am working on a script which should parse a large file called input.txt which contains table definitions, index definitions and comments like these ones:
------------------------------------------------
-- DDL Statements for table "CMWSYS"."CMWD_TEC_SUIVI_TRT"... (12 Replies)
I need to search for a block with the starting pattern say
"tabId": "table_1", and ending pattern say "]"
and then add a few lines before "]"
"block1":"block_111"
"tabId": "table_1",
"title":"My title"
.....
....
}]
how do I achieve it using awk and sed.
Thanks,
Lakshmi (3 Replies)
I am hoping to pull multiple strings from one file and use them to search within a block of text within another file.
File 1PS001,001 HLK
PS002,004 MWQ
PS004,002 RXM
PS004,006 DBX
PS004,006 SBR
PS005,007 ML
PS005,009 DBR
PS005,011 MR
PS005,012 SBR
PS006,003 RXM
PS006,003 >SJ
PS006,010... (11 Replies)
Discussion started by: jvoot
11 Replies
LEARN ABOUT XFREE86
libbash
LIBBASH(7) libbash Manual LIBBASH(7)NAME
libbash -- A bash shared libraries package.
DESCRIPTION
libbash is a package that enables bash dynamic-like shared libraries. Actually its a tool for managing bash scripts whose functions you may
want to load and use in scripts of your own.
It contains a 'dynamic loader' for the shared libraries ( ldbash(1)), a configuration tool (ldbashconfig(8)), and some libraries.
Using ldbash(1) you are able to load loadable bash libraries, such as getopts(1) and hashstash(1). A bash shared library that can be loaded
using
ldbash(1) must answer 4 requirments:
1. It must be installed in $LIBBASH_PREFIX/lib/bash (default is /usr/lib/bash).
2. It must contain a line that begins with '#EXPORT='. That line will contain (after the '=') a list of functions that the library
exports. I.e. all the function that will be usable after loading that library will be listed in that line.
3. It must contain a line that begins with '#REQUIRE='. That line will contain (after the '=') a list of bash libraries that are
required for our library. I.e. every bash library that is in use in our bash library must be listed there.
4. The library must be listed (For more information, see ldbashconfig(8)).
Basic guidelines for writing library of your own:
1. Be aware, that your library will be actually sourced. So, basically, it should contain (i.e define) only functions.
2. Try to declare all variables intended for internal use as local.
3. Global variables and functions that are intended for internal use (i.e are not defined in '#EXPORT=') should begin with:
__<library_name>_
For example, internal function myfoosort of hashstash library should be named as
__hashstash_myfoosort
This helps to avoid conflicts in global name space when using libraries that come from different vendors.
4. See html manual for full version of this guide.
AUTHORS
Hai Zaar <haizaar@haizaar.com>
Gil Ran <ril@ran4.net>
SEE ALSO ldbash(1), ldbashconfig(8), getopts(1), hashstash(1)colors(1)messages(1)urlcoding(1)locks(1)Linux Epoch Linux