What is the command to count lines in a files, but ignore blank lines and commented lines?
I have a file with 4 sections in it, and I want each section to be counted, not including the blank lines and comments... and then totalled at the end.
Here is an example of what I would like my... (6 Replies)
$ cat log.txt
Name Age Sex Lcation nfld alias xsd
CC 25 M XYZ asx KK Y
BB 21 F XAS awe SS N
SD 21 M AQW rty SD A
How can I replace the column with header "Lcation" with the column with header "alias" and delete the "alias" column?
so that the final output will become:
Name Age Sex... (10 Replies)
I have a data set that has 4 columns, I want to know if I can delete duplicate lines while ignoring one of the columns, for example
10 chr1 ASF 30
15 chr1 ASF 20
5 chr1 ASF 30
6 chr2 EBC 15
4 chr2 EBC 30
...
I want to know if I can delete duplicate lines while ignoring column 1, so the... (5 Replies)
Hi All,
I have a file example.csv which looks like this
GrpID,TargetID,Signal,Avg_Num
CSCH74_1_1,2007,61,256
CSCH74_1_1,212007,647,679
CSCH74_1_1,12007,3,32
CSCH74_1_1,207,299,777
I want the output as
GrpID,TragetID,Signal-CSCH74_1_1,Avg_Num
CSCH74_1_1,2007,61,256... (4 Replies)
Hi All,
I have a file example.csv which looks like this
GrpID,TargetID,Signal,Avg_Num
CSCH74_1_1,2007,61,256
CSCH74_1_1,212007,647,679
CSCH74_1_1,12007,3,32
CSCH74_1_1,207,299,777
I want the output as
GrpID,TragetID,Signal-CSCH74_1_1,Avg_Num
CSCH74_1_1,2007,61,256... (1 Reply)
Friends,
I need help with the following in UNIX.
Merge all csv files in one folder considering only 1 header row and ignoring header of all other files.
FYI - All files are in same format and contains same headers.
Thank you (4 Replies)
Hi,
I have an input like this
1 2 3 4
2 3 4 5
4 5 6 7
I would like to count the no. of columns and print a header with a prefix "Col".
I would also like to count the no. of rows and print as first column with each line number with a prefix "Row"
So, my output would be
... (2 Replies)
Hello,
I am trying to store sum of a column as a new column inside a file but have to find the column names dynamically
I/p
c1,c2,c3,c4,c5
10,20,30,40,50
20,30,40,50,60
If i want to find sum only column c1, c3 and output it as c6,c7
O/p
c1,c2,c3,c4,c5,c6,c7
10,20,30,40,50,30,70... (6 Replies)
I have a csv which has lot of columns . I was looking for an awk script which would extract a column twice. for the first occurance the header and data needs to be intact but for the second occurance i want to replace the header name since it a duplicate and extract year value which is in ddmmyy... (10 Replies)
I've been struggling with this one for quite a while and cannot seem to find a solution for this find/replace scenario. Perhaps I'm getting rusty.
I have a file that contains a number of metrics (exactly 3 fields per line) from a few appliances that are collected in parallel. To identify the... (3 Replies)
Discussion started by: verdepollo
3 Replies
LEARN ABOUT DEBIAN
hotswaprc
HOTSWAPRC(5) File Formats Manual HOTSWAPRC(5)NAME
hotswaprc - configuration file for hotswap
DESCRIPTION
/etc/hotswaprc is the global configuration file for the hotswap utility.
It allows system administrators to specify arbitrary shell scripts to be run after a device is inserted, as well as before and after it is
removed. Scripts are selected according to the model name retrieved from the device. This is particularly helpful for automatic configura-
tion of CD-RW drives, which require SCSI emulation and bypass normal access via the IDE subsystem.
hotswaprc is implemented as an Extensible Mark-up Language (XML) application. XML documents are structured using elements of the form
<tag-name> content <tag-name>. A Document Type Definition (DTD) describes the possible content of each element.
Please refer to the XML specification for more information. The hotswap distribution also contains an example file, doc/hotswaprc.example,
which includes the DTD for the configuration file format.
ELEMENTS
<hotswap>
This is the root element of the document. Each valid hotswaprc must contain exactly one <hotswap> element. The <hotswap> element may
contain an arbitrary number of <device> elements.
<device>
The configuration file contains one <device> element for every device for which scripts are defined. The <device> element is com-
posed of the following elements in this order: <name>, <post-insert>, <pre-remove>, <post-remove>. All but <name> are optional.
<name> The content of this element is the model identification string of the IDE device the current <device> element refers to.
<post-insert>
Contains the shell script that is to be executed after the device has been inserted and registered with the kernel.
<pre-remove>
Contains the shell script that is to be run before hotswap attempts to unregister the device.
<post-remove>
Contains the shell script that is to be run after the device had been unregistered.
REPORT BUGS
Report bugs to t.stadelmann1@physics.ox.ac.uk.
AUTHOR
Written by Tim Stadelmann.
SEE ALSO hotswap(1), xhotswap(1).
COPYRIGHT
Copyright (c) 2002-2003 Tim Stadelmann.
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU General Public License (GPL), Version 2 or
any later version published by the Free Software Foundation.
26th November 2002 HOTSWAPRC(5)