I am trying to extract column values from a column in a tab-delimited text file and overlay them in a 2nd tab-delimited text file using a V-lookup type script in Unix bash.
These are the 1st few rows of the 1st input file IN1:
These are the 1st rows of the 2nd input file IN2:
Need to bring in IN2 column 4 values into IN1 based on column 1 values, however, the IN2 is smaller than IN1
If IN2 is missing 1st column value of IN1, then retain value in IN1. In this example there is no value for rs313, rs112, rs668, etc, so their original values in IN1 are retained.
Desired output, OUT:
I have highlighted the rows for which values were found in IN2. I'm using Ubuntu 16.04.
We have Unix configured as our external DNS, forward DNS is working properly, however Reverse lookup is not working. Any idea what the problem is? I have checked the named.boot and .rev file and everything seems to be correctly. However it appears that the reverse zone file in the named.boot... (2 Replies)
Hi All
I have got a fixed length file of 80bytes long.The first 4bytes of each record represents a client_number.I need to modify the client number based on another lookup file.
The lookup file contains 2 fields and a comma delimited file.The first line of the lookup file contains the header... (5 Replies)
i am having one file which is of CSV format with two fields client_id and client_nbr.The sample data is lke below
ABC,1250
CDE,1520
EFG,1000
PQR,1800
The client nbr for these clients change frequently.So i want to create one lookup file every week for the changed client and run a script... (3 Replies)
Write a quick shell snippet to find all of the IPV4 IP addresses
in any and all of the files under /var/lib/output/*, ignoring
whatever else may be in those files. Perform a reverse lookup on
each, and format the output neatly, like "IP=192.168.0.1,
... (0 Replies)
I'm at wits end with this issue and my troubleshooting leads me to believe it is a problem with the file formatting of the array referenced by my script:
awk -F, '{if (NR==FNR) {a=$4","$3","$2}\
else {print a "," $0}}' WBTSassignments1.txt RNCalarms.tmp
On the WBTSassignments1.txt file... (2 Replies)
Hi,
I have an input file which contain below records:
a,1
b,2
c,3
a,10
b,34
i have a reference file which contains below records:
a,AA
b,BB
c,CC
My required output is : (3 Replies)
Trying to do some control flow parsing based on the index postion of an array member. Here is the pseudo code I am trying to write in (preferably in pure bash) where possible. I am thinking regex with do the trick, but need a little help.
pesudo code
if == ENDSINFIVEINTS ]]; then
do... (4 Replies)
I am new to bash scripting. I want write a script that reads from the first argument file and run nslookup, then prints out each nslookup. Something like below:
File name = ip
8.8.8.8
8.8.4.4
Bash shell script: nslookup.sh
#!/bin/bash
for i in $1
do
nslookup $i
done
I... (7 Replies)
hello,
i need a bit of help on how to do this effectively in bash without a lot of extra looping or massive switch/case
i have a long array of M elements and a short array of N elements, so M > N always. M is not a multiple of N.
for case 1, I want to stretch N to fit M
arrayHuge
H = (... (2 Replies)
In the bash below the user selects the file to be used. The digits of each file are unique and used to automatically locate the next file to be used in the process. The problem I can not seem to fix is that the full path needs to be referenced in the second portion and it is not currently. Is... (7 Replies)
Discussion started by: cmccabe
7 Replies
LEARN ABOUT X11R4
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