Dear Experts
I am trying to find if it is possible to combine unix commands in awk program. For example if it is possible embed rm or ls or any unix command inside the awk program and while it is reading the file besides printing be able to do some unix commands. I am thinking may be just print... (2 Replies)
Hello,
I am trying, utilizing the few commands I know, to extract all records within my file that were generated in November of 2007. Each record within the file has a "date" field giving the month, day, and year (9-8-88). How do I extract those records to their own file?
Once I extract... (4 Replies)
How can I direct awk output to go nowhere? I can write the data to a file easy enough or print it on the screen. But for this particular command I don't actually want the data and I don't want to create a file. I just want the data discarded.
Thanks in advance (3 Replies)
Hello everyone, I've suddenly gotten very interested in sed and awk (and enjoying it quite a bit too) because of a large conversion project that we're working on. I'm currently stuck with a very inefficient process for processing text blocks. I'm sure someone here should be able to easily point out... (2 Replies)
I've run into a problem getting exactly what I want out of awk - some folks may recognize this as an output from Amazon's ec2-describe-instances:
Given the following:
INSTANCE i-4960f321
BLOCKDEVICE Line2Var2
TAG instance i-4960f321 Name web1
TAG instance i-4960f321... (2 Replies)
Hi there is there a way to assing variable a value that is output of a program in awk script. For e.g., I did
temp=(`grep "" $5 | cut -f8 -d' '`)
but it does not work.
Any advice???
Thanks in advance!!! :) (3 Replies)
Hi All, Need Suggestion, Want to sort a file using awk & sed to get required, output as below, such that each LUN shows correct WWPN and FA port Numbers correctly:
Required output:
01FB 10000000c97843a2 8C 0
01FB 10000000c96fb279 9C 0
22AF 10000000c97843a2 8C 0
22AF 10000000c975adbd ... (10 Replies)
What is the correct syntax to pipe or run three awk commands? Basically, using the output of the first awk as input in the second. Then using the output of the second awk in the third. Thank you :).
awk 'FNR==NR {E; next }$3 in E {print $3, $5}' panel_genes.txt RefSeqGene.txt > update.txt |... (3 Replies)
In the awk below the first sample MEV45 gets extracted from the html, but the subsequent MEV46 and MEV47 do not as they are not part of parse. I can not seem to add them to the code. Thank you very much @RudiC your awk is very nice :).
input
{"barcodeId": "IonXpress", "barcodedSamples":... (3 Replies)
flow-cat(1) General Commands Manual flow-cat(1)NAME
flow-cat -- Concatenate flow files
SYNOPSIS
flow-cat [-aghmp] [-b big|little] [-C comment] [-d debug_level] [-o filename] [-t start_time] [-T start_time] [-z z_level]
[file|directory ...]
DESCRIPTION
The flow-cat utility processes files and/or directories of files in the flow-tools format. The resulting concatenated data set is written
to the standard output or file specified by -o. If file is a single dash (`-') or absent, flow-cat will read from the standard input.
OPTIONS -a Do not ignore filenames that begin with tmp.
-b big|little
Byte order of output.
-C Comment
Add a comment.
-d debug_level
Enable debugging.
-g Sort file list by capture start time before processing.
-h Display help.
-m Disable the use of mmap().
-p Preload headers. Use to preserve meta information such as lost flows.
-o file Write to file instead of the standard out.
-t start_time
Select flow files up to start_time. If used with -T select files between start_time and end_time.
-T end_time
Select flow files after end_time. If used with -t select files between start_time and end_time.
-z z_level
Configure compression level to z_level. 0 is disabled (no compression), 9 is highest compression.
file|directory...
Process the files and/or directory.
TIME /DATE parsing
start_time and end_time parsing is implemented with getdate.y, a commonly used function to process free-form time date specifications.
Example usage borrowed from cvs:
1 month ago
2 hours ago
400000 seconds ago
last year
last Monday
yesterday
a fortnight ago
3/31/92 10:00:07 PST
January 23, 1987 10:05pm
22:00 GMT
EXAMPLES
Concatenate all flow files begining with ft-v05.2001-05.01, use flow-print to display the results.
flow-cat ft-v05.2001-05-01.* | flow-print
Concatenate flow files in /flows/krc4, store store the output in compressed.flows at compression level 9 (best). The headers are preloaded
so various metadata such as the flow count is correct in the result. Filenames begining with tmp which are typically in-progress flow
files from flow-capture are not processed.
flow-cat -p -z9 /flows/krc4 > compressed.flows
BUGS
None known.
AUTHOR
Mark Fullmer maf@splintered.net
SEE ALSO flow-tools(1)flow-cat(1)