awk '{ arr[$1]=arr[$1]+$2} { for (i in arr) print i,arr[i] } ' file1 file2
i was not sure how to deal with 3 columns, so i only tried working with 2 i.e. $1 and $2. I was trying to create an array with with $1 as index and $2 as value. But its not working
---------- Post updated at 02:39 AM ---------- Previous update was at 02:05 AM ----------
ok, i've got it to work with 2 columns. It matches column 1 from both files and add corresponding entry from column 2,
hello everyone....
script is: To convert the contents of a database file into uppercase
my code is:
printf "%s\n" , $2 | awk '{print toupper($2)}' emp.lst
i m able to do only for one field.....didn't get any sources for handling multiple fields.
please suggest me for multiple... (1 Reply)
hai all
I am new to the world of shell scripting
I wanted to extract two columns from multiple files say around 25 files
and i wanted to get the separate outfile for each input file
tired using the following command to extract two columns from 25 files
awk... (2 Replies)
Hello,
Is it possible to handle data from two different files at once in awk (latest version and platform is Fedora). I found on the net that we cannot nest awk. My requirement is that I have two similar files :
File 1:
Name: abc
Val = 58
Name: cdf
Val = 1;
..................
File... (7 Replies)
HI I have a list of files that are incorrectely names and I need to move them to new name .. I tried few things that has not worked so far can you help ?
I need to rename all thes eifle ( tere are over 100 )
xldn0357bap.orig.new
xldn0389bap.orig.new
xldn0439bap.orig.new... (12 Replies)
Hi. I have a large number of files with names like:
t_ 0.20000E-02.dat
There is actually a space after the underscore. These files are numbered numerically, i.e. t_ 0.20000E-02.dat, t_ 0.21000E-02.dat, t_ 0.22000E-02.dat and so on.
What I would like to do is rename such that the file with... (8 Replies)
Hi,
I am using sub to remove blank spaces and one pattern(=>) from the input string. It works fine when I am using two sub functions for the same. However it is giving error while I am trying to remove both spaces and pattern using one single sub function.
Working:
$ echo " OK => " |awk... (2 Replies)
Dear all,
My work is completely stuck cos of the following issue. Please find it here and kindly help me.
Task is following:
I have set of files with such pattern
1t-rw-rw-r-- 1 emily emily 119 Jun 11 10:45 vgtree_5_1_pfs.root
3t-rw-rw-r-- 1 emily emily 145 Jun 11 10:46 vgtree_5_3_pfs.root... (4 Replies)
Hi,
I have many test*.ft1 files to which I want to read as input for a script called
pipe2txt.tcl and print the output in each separate file.
For example,
pipe2txt.tcl < test001.ft1 > test001.txt
How can I read many files in this maner?
thank you very much,
Best,
Pahuja (5 Replies)
Hi,
We have created a script that would accept the an indicator as a parameter and archive files present in a directory. The indicator would drive what the name pattern of the files to be archived should be.
If the indicator is 1, then the pattern to look out for is FACT*.
If the indicator is... (2 Replies)
Hi Gurus,
I have below files in one directory. the file name has date and time portion which is exactly the file be created. I need keep only lasted created file which is abc_20140101_1550 and remove rest of the file.
abc_20140101_1300
abc_20140101_1200
abc_20140101_1400
abc_20140101_1500... (2 Replies)
Discussion started by: ken6503
2 Replies
LEARN ABOUT CENTOS
grub-render-label
GRUB-RENDER-LABEL(1) User Commands GRUB-RENDER-LABEL(1)NAME
grub-render-label - generate a .disk_label for Apple Macs.
SYNOPSIS
grub-render-label [OPTION...] [OPTIONS]
DESCRIPTION
Render Apple .disk_label.
-b, --bgcolor=COLOR
use COLOR for background
-c, --color=COLOR
use COLOR for text
-f, --font=FILE
use FILE as font (PF2).
-i, --input=FILE
read text from FILE.
-o, --output=FILE
set output filename. Default is STDOUT
-t, --text=STRING
set the label to render
-v, --verbose
print verbose messages.
-?, --help
give this help list
--usage
give a short usage message
-V, --version
print program version
Mandatory or optional arguments to long options are also mandatory or optional for any corresponding short options.
REPORTING BUGS
Report bugs to <bug-grub@gnu.org>.
SEE ALSO
The full documentation for grub-render-label is maintained as a Texinfo manual. If the info and grub-render-label programs are properly
installed at your site, the command
info grub-render-label
should give you access to the complete manual.
grub-render-label (GRUB) 2.02-2ubuntu8.3 July 2018 GRUB-RENDER-LABEL(1)
08-27-2011
