Need an awk / sed / or perl one-liner to remove last 4 characters with non-unique pattern.
Hi, I'm writing a ksh script and trying to use an awk / sed / or perl one-liner to remove the last 4 characters of a line in a file if it begins with a period.
Here is the contents of the file... the column in which I want to remove the last 4 characters is the last column. ($6 in awk). I've tried a few commands but I'm totally stumped. Thanks for any assistance.
Input:
:: gstreamer
:: xine-lib
:: xine-lib-extras
Output should be:
gstreamer xine-lib xine-lib-extras
How can it be done with sed or perl? (12 Replies)
Thanks for giving your time and effort to answer questions and helping newbies like me understand awk.
I have a huge file, millions of lines, so perl takes quite a bit of time, I'd like to convert these perl one liners to awk.
Basically I'd like all lines with ISA sandwiched between... (9 Replies)
Hello All,
I am here again scratching my head on pattern selection with special characters.
I have a large file having around 200 entries and i have to select a single line based on a pattern.
I am able to do that:
Code:
cat mytest.txt | awk -F: '/myregex/ { print $2}'
... (6 Replies)
I have an array containing bunch of characters. I have to check this array for specific character and if "Not Found than" use a goto statement to go to USAGE
set options = (A B C D E F)
@ i = 0
while ($i <= ${#options})
if ($options != "F" || $options != "D") then
goto USAGE
endif
@... (1 Reply)
Hello. I've been thinking about how to go about this. I know I'm close but still does not work. I need to remove any word in that is not at least 2 characters long. I've removed all the non-alphabetic characters already (numbers included). Here's an example:
my $string = "This string is a... (4 Replies)
awk , sed Experts,
I want to remove first and last line after pattern match "vg" :
I am trying : # sed '1d;$d' works fine , but where the last line is not having vg entry it is deleting one line of data.
- So it should check for the pattern vg if present , then it should delete the line ,... (5 Replies)
Hi All,
i have an output of command vmstat as below :
$ vmstat
System configuration: lcpu=4 mem=5376MB ent=1.00
kthr memory page faults cpu
----- ----------- ------------------------ ------------ -----------------------
r b avm fre re pi... (10 Replies)
I have an input file which is similar to what I have shown below.
Pattern : Data followed by two blank lines followed by data again followed by two blank lines followed by data again etc..
The first three lines after every blank line combination(2 blank lines between data) should be... (2 Replies)
In the awk piped to sed below I am trying to format file by removing the odd xxxx_digits and whitespace after, then move the even xxxx_digit to the line above it and add a space between them. There may be multiple lines in file but they are in the same format. The Filename_ID line is the last line... (4 Replies)
Discussion started by: cmccabe
4 Replies
LEARN ABOUT DEBIAN
mopd
MOPD(8) BSD System Manager's Manual MOPD(8)NAME
mopd -- MOP Loader Daemon
SYNOPSIS
mopd [-adf] [interface]
DESCRIPTION
mopd services MOP Load requests on the Ethernet connected to interface or all interfaces if '-a' is given. In a load request received by
mopd a filename can be given. This is the normal case for e.g. terminal servers. If a filename isn't given mopd must know what image to
load.
Upon receiving a request, mopd checks if the requested file exists in /srv/tftp/mop, the filename is normally uppercase and with an extension
of .SYS. If the filename isn't given, the ethernet address (in lower case, apart from the .SYS) of the target is used as the filename, e.g.
08002b09f4de.SYS and it might be a soft link to another file.
mopd supports two kinds of files. The first type that is check is if the file is in a.out(5) format. If not, a couple of Digital's formats
are checked.
In normal operation, mopd forks a copy of itself and runs in the background. Anomalies and errors are reported via syslog(3).
OPTIONS -a Listen on all the Ethernets attached to the system. If '-a' is omitted, an interface must be specified.
-d Run in debug mode, with all the output to stdout. The process will run in the foreground.
-f Run in the foreground.
FILES
/srv/tftp/mop
SEE ALSO bpf(4), mopa.out(1), mopchk(1), mopprobe(1), moptrace(1)
DECnet Digital Network Architecture Phase IV, Maintenance Operations Functional Specification V3.0.0, AA-X436A-TK.
DECnet Digital Network Architecture, Maintenance Operations Protocol Functional Specification V4.0.0, EK-DNA11-FS-001.
AUTHORS
Mats O Jansson (moj@stacken.kth.se).
September 24, 1995