Hi Unix gurus,
I have a file. I need to insert sequential number at the starting of the file. Fields are delimited by "|". I know the starting number.
Example:
File is as follows
|123|4test|test
|121|2test|test
|x12|1test|test
|vd123|5test|test
starting number is : 120
... (7 Replies)
We have to convert a sequential file to a 80 char line sequential file (HP UX platform).The sequential file contains special characters. which after conversion of the file to line sequential are getting coverted into "new line" or "tab" and file is getting distorted. Is there any way to read these... (2 Replies)
Hi
I have a file sequential way i.e. written in contineous mode and the Record Seperator is AM from which the record is seperated .Now to process I have to make line sequential,and more over record length is not same it varies as per the input address,
AM1234563 John Murray 24 Old streeet old... (5 Replies)
Hi there,
Firstly, I have no experience with shell scripts so would really appreciate some help.
I have the following shell script that is causing some problems:
moveit()
{
&& set -x
if
then
DOUBLE_DELIVERY=$(grep... (6 Replies)
Writing a Tool to simulate non-sequential disk I/O (simulate db file sequential read) in C POSIX
I have over the years come across the same issue a couple of times, and it normally is that the read speed on SAN is absolutely atrocious when doing non-sequential I/O to the disks. Problem being of... (7 Replies)
I can rename a file with sequential numbers from 1 to N with this script:
num=1
for file in *.dat;do
mv "$file" "$(printf "%u" $num).txt"
let num=num+1
done
The script begins with renaming a some.dat file to 1.dat.txt and goes on sequentially renaming other DAT files to... (1 Reply)
Hi experts, I've been struggling to format a large genetic dataset. It's complicated to explain so I'll simply post example input/output
$cat input.txt
ID GENE pos start end
blah1 coolgene 1 3 5
blah2 coolgene 1 4 6
blah3 coolgene 1 4 ... (4 Replies)
I have a file that looks like this:
n1 1
n2 1
n3 1
n4 3
n4 3
n2 5
n2 5
n2 5
n2 5
n3 5
n3 5
n4 6
n7 6
that is a name followed be a descriptive number.
I want to make these numbers sequential starting from 0 but without changing the "neighbours" each name belongs to. So the above... (3 Replies)
I am trying to output a tab-delimited result that uses the data from a tab-delimited file to combine and subtract specific lines.
If $4 matches in each line then the first matching sequential $6 value is added to $2, unless the value is 1, then the original $2 is used (like in the case of line... (3 Replies)
Discussion started by: cmccabe
3 Replies
LEARN ABOUT FREEBSD
freebsd-version
FREEBSD-VERSION(1) BSD General Commands Manual FREEBSD-VERSION(1)NAME
freebsd-version -- print the version and patch level of the installed system
SYNOPSIS
freebsd-version [-ku]
DESCRIPTION
The freebsd-version utility makes a best effort to determine the version and patch level of the installed kernel and / or userland.
The following options are available:
-k Print the version and patch level of the installed kernel. Unlike uname(1), if a new kernel has been installed but the system
has not yet rebooted, freebsd-version will print the version and patch level of the new kernel.
-u Print the version and patch level of the installed userland. These are hardcoded into freebsd-version during the build.
If both -k and -u are specified, freebsd-version will print the kernel version first, then the userland version, on separate lines. If nei-
ther is specified, it will print the userland version only.
IMPLEMENTATION NOTES
The freebsd-version utility should provide the correct answer in the vast majority of cases, including on systems kept up-to-date using
freebsd-update(8), which does not update the kernel version unless the kernel itself was affected by the latest patch.
To determine the name (and hence the location) of a custom kernel, the freebsd-version utility will attempt to parse
/boot/defaults/loader.conf and /boot/loader.conf, looking for definitions of the kernel and bootfile variables, both with a default value of
``kernel''. It may however fail to locate the correct kernel if either or both of these variables are defined in a non-standard location,
such as in /boot/loader.rc.
ENVIRONMENT
ROOT Path to the root of the filesystem in which to look for loader.conf and the kernel.
EXAMPLES
To determine the version of the currently running userland:
/bin/freebsd-version -u
To inspect a system being repaired using a live CD:
mount -rt ufs /dev/ada0p2 /mnt
env ROOT=/mnt /mnt/bin/freebsd-version -ku
SEE ALSO uname(1), loader.conf(5), freebsd-version(8)HISTORY
The freebsd-version command appeared in FreeBSD 10.0.
AUTHORS
The freebsd-version utility and this manual page were written by Dag-Erling Smorgrav <des@FreeBSD.org>.
BSD October 5, 2013 BSD