Is there a way to do make-style computed variable names in awk? e.g. in make
foo = bar
bar = wocket
I can get "wocket" with $($(foo))
Alternatively can you list all defined variables in awk?
thanks (4 Replies)
Hi
I found the following line would concatenate all test_01 test_02 test_03 files into "bigfile".
cat test_* >> bigfile
But, what I'm looking for a way to insert each file names in order when concatenated in "bigfile".
Thank you
samky2005 (2 Replies)
Dear All,
I have some thousands of files in a folder and i need to change those file names without opening the file (no need to change anything in the file content, need to change the file name only). The filenames are as follows:
Myfile_name.1_parameter
Myfile_name.2_parameter... (6 Replies)
Print same letters as 1 or 3 (ex:a/a)and different letters as 2 (ex:a/b)
based on Name and subname
1st column indicates main names (ex: ID1 is one main name) and 2nd column indicates sub names (ex: a1 is a subname of ID1) and 3rd column indicates sub-sub names (ex: a/b is a sub-sub name of... (6 Replies)
Dear programmers,
I have a question about conditionally merging multiple files and having their file names in the first column.
Input files:
file.1.extension file.2.extension file.3.extension file.4.extension ... file.1000.extension
where each file looks like this (with multiple lines):... (5 Replies)
Hi,
Input- a file comtaining a procedure or function with various statements in that one of the statement would be
insert into table1 (a,b,c) values (1,2,3)
ourput required
true if insert statement is using column name (a,b,c) else false.
Please suggest (8 Replies)
Mike Harrington:(510) 548-1278:250:100:175
Christian Dobbins:(408) 538-2358:155:90:201
Susan Dalsass:(206) 654-6279:250:60:50
Need to learn how to print each record preceded by the number of the record using awk.
awk -F '|' '{print NF}'would it be... (2 Replies)
I found this command and would like to know what it means:
gawk 'NR==1{for(i=1;i<=NF;i++)if($i~/FE/)f=i}{for(i=0;i<n;i++)printf"%s%s",i?" ":"",$f;print""}'
It seems to mean if the row =1 assign i to that row, and then if FE is in the top row /column then increment and print the row.
I am... (2 Replies)
Data files coming in different names in a file name called process.txt.
1. shipments_yyyymmdd.gz
2 Order_yyyymmdd.gz
3. Invoice_yyyymmdd.gz
4. globalorder_yyyymmdd.gz
The process needs to discard all the below files and only process two of the 4 file names available
... (1 Reply)
Discussion started by: dsravanam
1 Replies
LEARN ABOUT CENTOS
mrtg2pcp
MRTG2PCP(1) Performance Co-Pilot MRTG2PCP(1)NAME
mrtg2pcp - Import mrtg data and create a PCP archive
SYNOPSIS
mrtg2pcp hostname devname timezone infile outfile
DESCRIPTION
mrtg2pcp is intended to read an MRTG log file as created by mrtg(1) and translate this into a Performance Co-Pilot (PCP) archive with the
basename outfile. The hostname, devname, and timezone arguments specify information about the system for which the statistics were
gathered.
The resultant PCP achive may be used with all the PCP client tools to graph subsets of the data using pmchart(1), perform data reduction
and reporting, filter with the PCP inference engine pmie(1), etc.
A series of physical files will be created with the prefix outfile. These are outfile.0 (the performance data), outfile.meta (the metadata
that describes the performance data) and outfile.index (a temporal index to improve efficiency of replay operations for the archive). If
any of these files exists already, then mrtg2pcp will not overwrite them and will exit with an error message of the form
__pmLogNewFile: "blah.0" already exists, not over-written
mrtg2pcp is a Perl script that uses the PCP::LogImport Perl wrapper around the PCP libpcp_import library, and as such could be used as an
example to develop new tools to import other types of performance data and create PCP archives.
SEE ALSO logimport(3), PCP::LogImport(3pm), pmchart(1), pmie(1)pmlogger(1).
3.8.10 Performance Co-Pilot MRTG2PCP(1)