11-14-2005
awk command format ?
Can some body tell me the meaning of '$1=$1' in the following syntax.
nawk -v RS='' -v OFS=',' '$1=$1' myFile.txt
Thanks,
Mahesh
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
HI guys,
I have created a script to read 1 column in a csv file and then place it in text file.
However, when i checked out the text file, it is not in a column format...
Example:
CSV file contains
name,age
aa,11
bb,22
cc,33
After using awk to get first column
TXT file... (1 Reply)
Discussion started by: mdap
1 Replies
2. Shell Programming and Scripting
Hi -
I have a file with contents as below.
12.1 a.txt
12.1 b.txt
12.1 c.txt
13.2 a.txt
13.2 d.txt
14.3 f.txt
15.4 a.txt
15.4 b.txt
15.4 z.txt
I need to print the contents like this.
12.1 a.txt
< >< >< >b.txt
< >< >< >c.txt (7 Replies)
Discussion started by: guruparan18
7 Replies
3. Shell Programming and Scripting
Hi Experts,
I am adding a column of numbers with awk , however not getting correct output:
# awk '{sum+=$1} END {print sum}' datafile
2.15291e+06
How can I getthe output like : 2152910
Thank you..
# awk '{sum+=$1} END {print sum}' datafile
2.15079e+06 (3 Replies)
Discussion started by: rveri
3 Replies
4. Shell Programming and Scripting
Hello all,
Here is what my bash script does: sums number columns, saves the tot in new column, outputs if tot >= threshold val:
> cat getnon0file.sh
#!/bin/bash
this="getnon0file.sh"
USAGE=$this"
InFile="xyz.38"
Min="0.05"
#
awk '{sum=0; for(n=2; n<=NF; n++){sum+=$n};... (4 Replies)
Discussion started by: catalys
4 Replies
5. Shell Programming and Scripting
Am new to AWk, Can anyone help me to get excepected output from given input please.
input file
student: name
details of them = details_needed
class: 5th_needed
adress: address_needed
Expected output:
details of them = 5th_needed = address_needed
---------- Post updated at... (5 Replies)
Discussion started by: Elavarasan
5 Replies
6. Shell Programming and Scripting
Need some help .. in formating some input
INPUT FILE
IMAGE ap00m43 0 0 8 ap00m43_1318914034 UNIX_STANDARD_ADC_2 0 *NULL* root Daily 1 0 1318914034 408 1319518834 0
HISTO -1 -1 -1 -1 -1 -1 -1 -1 -1 -1
FRAG 1 1 0 0 2 20 6 G11890 ts00p71 65536
FRAG 1 2 13440 0 2 20 7 G11890 ts00p71... (2 Replies)
Discussion started by: greycells
2 Replies
7. Shell Programming and Scripting
Hi
i read data with awk,
01.07.2012 00:10 227.72 247.50 1.227 1.727 17.273
01.07.2012 00:20 237.12 221.19 2.108 2.548 17.367
01.07.2012 00:30 230.38 230.34 3.216 3.755 17.412
01.07.2012 00:40 243.18 242.91 4.662 5.172 17.328
01.07.2012 00:50 245.58 245.41 5.179 5.721 17.128... (3 Replies)
Discussion started by: IMPe
3 Replies
8. Shell Programming and Scripting
hi Friends ,
I have a file as below
s.txt
1~2~~4
2~6~~7
3~8~~9
t.txt
1~2~~4
2~5~8~7
3~8~~7
header for both files is common (2 Replies)
Discussion started by: i150371485
2 Replies
9. Shell Programming and Scripting
Guys ,, pls .. need help with this ...
File 1
0A6C Not Visible ???:? NA:NA TDEV N/Grp'd NR 5121
0A6D Not Visible ***:* NA:NA TDEV N/Grp'd RW 33784
0A6E Not Visible ***:* NA:NA TDEV N/Grp'd RW 33784... (4 Replies)
Discussion started by: greycells
4 Replies
10. Shell Programming and Scripting
Hi,
I have been stuck in this requirement where my file contains the below format.
20150812170500846959990854-25383-8.0.0
"ABC Report" hp96880
"4952"
20150812170501846959990854-25383-8.0.0 End of run
20150812060132846959990854-20495-8.0.0
"XYZ Report" vg76452
"1006962188"... (6 Replies)
Discussion started by: Chinmaya Kabi
6 Replies
LEARN ABOUT REDHAT
amplot
AMPLOT(8) System Manager's Manual AMPLOT(8)
NAME
amplot - visualize the behavior of Amanda
SYNOPSIS
amplot [ -c ] [ -e ] [ -g ] [ -l ] [ -p ] [ -t T ] amdump_files
DESCRIPTION
Amplot reads an amdump output file that Amanda generates each run (e.g. amdump.1) and translates the information into a picture format
that may be used to determine how your installation is doing and if any parameters need to be changed. Amplot also prints out amdump lines
that it either does not understand or knows to be warning or error lines and a summary of the start, end and total time for each backup
image.
Amplot is a shell script that executes an awk program (amplot.awk) to scan the amdump output file. It then executes a gnuplot program
(amplot.g) to generate the graph. The awk program is written in an enhanced version of awk, such as GNU awk (gawk version 2.15 or later)
or nawk.
During execution, amplot generates a few temporary files that gnuplot uses. These files are deleted at the end of execution.
See the amanda(8) man page for more details about Amanda.
OPTIONS
-c Compress amdump_files after plotting.
-e Extend the X (time) axis if needed.
-g Direct gnuplot output directly to the X11 display (default).
-p Direct postscript output to file YYYYMMDD.ps (opposite of -g).
-l Generate landscape oriented output.
-t T Set the right edge of the plot to be T hours.
The amdump_files may be in various compressed formats (compress, gzip, pact, compact).
INTERPRETATION
The figure is divided into a number of regions. There are titles on the top that show important statistical information about the configu-
ration and from this execution of amdump. In the figure, the X axis is time, with 0 being the moment amdump was started. The Y axis is
divided into 5 regions:
QUEUES: How many backups have not been started, how many are waiting on space in the holding disk and how many have been transferred
successfully to tape.
%BANDWIDTH: Percentage of allowed network bandwidth in use.
HOLDING DISK: The higher line depicts space allocated on the holding disk to backups in progress and completed backups waiting to be
written to tape. The lower line depicts the fraction of the holding disk containing completed backups waiting to be written to tape
including the file currently being written to tape. The scale is percentage of the holding disk.
TAPE: Tape drive usage.
%DUMPERS: Percentage of active dumpers.
The idle period at the left of the graph is time amdump is asking the machines how much data they are going to dump. This process can take
a while if hosts are down or it takes them a long time to generate estimates.
AUTHOR
Olafur Gudmundsson ogud@tis.com
Trusted Information Systems
formerly at University of Maryland, College Park
BUGS
Reports lines it does not recognize, mainly error cases but some are legitimate lines the program needs to be taught about.
SEE ALSO
amanda(8), amdump(8), gawk(1), nawk(1), awk(1), gnuplot(1), sh(1), compress(1), gzip(1)
4th Berkeley Distribution AMPLOT(8)