Hi everyone!
I'm not new to Unix, but I've never used awk before.
I tried to look up this information on several sites and forums,
I also looked in the documentation but I haven't found a solution yet.
I would like to print the previous 3 lines before and the following 4 lines after the... (6 Replies)
I am parsing a nagios config, searching for a string, and then printing the line 2 lines later (the "members" string). Here's the data:
define hostgroup{
hostgroup_name chat-dev
alias chat-dev
members thisisahostname
}
define hostgroup{
... (1 Reply)
Hi,
i have an input text file like this:
Student 1
maths
science
=
Student 2
maths
science
=
Student 3
maths
science
i would like to print each student information into separate files, each student id is separated by "=". (1 Reply)
Hi Friends,
I have small issue with following code snippet.
I am trying call one function inside awk in which the function inturn will echo few lines. However when i ran script its throwing an error saying "nawk: syntax error at source line 1".
#!/bin/sh
eval input=$@
while read... (3 Replies)
Hello,
I can extract lines in a file, between two strings but only one time.
If there are multiple occurencies, my command show only one block.
Example, monfichier.txt contains :
debut_sect
texte L1
texte L2
texte L3
texte L4
fin_sect
donnees inutiles 1
donnees inutiles 2
... (8 Replies)
Data:
Pattern Data Data Data
Data Data Data
Data Data Data
...
With awk, how do I print the pattern matching line, then the subsequent lines following the pattern matching line. Varying number of lines following the pattern matching line. (9 Replies)
Hi all,
I am new to using awk and am quickly discovering what a powerful pattern-recognition tool it is. However, I have what seems like a fairly basic task that I just can't figure out how to perform in one line. I want awk to find and print all the lines in which one of multiple patterns (e.g.... (8 Replies)
Hi all,
i need help to extract each first line from multiple lines occurrences based on different patterns (name) starting from the fourth lines like follows:-
// header 1 header 2 header 3
// no acc name score rank
//... (2 Replies)
Hi All,
I have a file looks like:
rst:singh:99.0.20-X86 2 rst:ACSI_SIN_SERVICES
rst:singh:99.0.20-X86 2 rst:ACSI_BISI want to wrap 3rd col in one line and add variable value at start and ending of line and I wrote command:
cat file | awk '{print $3}' | xargs > command.txt
sed -e... (1 Reply)
Hello.
I have been looking high and low for the solution for this. I seems there should be a simple answer, but alas.
I have a big xml file, and I need to extract certain information from specific items. The information I need can be found between a specific set of tags. let's call them... (2 Replies)
Discussion started by: Tobias-Reiper
2 Replies
LEARN ABOUT V7
vp
VP(4) Kernel Interfaces Manual VP(4)NAME
vp - Versatec printer-plotter
DESCRIPTION
Vp0 is the interface to a Versatec D1200A printer-plotter with a Versatec C-PDP11(DMA) controller. Ordinarily bytes written on it are
interpreted as ASCII characters and printed. As a printer, it writes 64 lines of 132 characters each on 11 by 8.5 inch paper. Only some
of the ASCII control characters are interpreted.
NL performs the usual new-line function, i.e. spaces up the paper and resets to the left margin. It is ignored however following a CR
which ends a non-empty line.
CR is ignored if the current line is empty but is otherwise like NL.
FF resets to the left margin and then to the top of the next page.
EOT resets to the left margin, advances 8 inches, and then performs a FF.
The ioctl(2) system call may be used to change the mode of the device. Only the first word of the 3-word argument structure is used. The
bits mean:
0400 Enter simultaneous print/plot mode.
0200 Enter plot mode.
0100 Enter print mode (default on open).
040 Send remote terminate.
020 Send remote form-feed.
010 Send remote EOT.
04 Send remote clear.
02 Send remote reset.
On open a reset, clear, and form-feed are performed automatically. Notice that the mode bits are not encoded, so that it is required that
exactly one be set.
In plot mode each byte is interpreted as 8 bits of which the high-order is plotted to the left; a `1' leaves a visible dot. A full line of
dots is produced by 264 bytes; lines are terminated only by count or by a remote terminate function. There are 200 dots per inch both ver-
tically and horizontally.
When simultaneous print-plot mode is entered exactly one line of characters, terminated by NL, CR, or the remote terminate function, should
be written. Then the device enters plot mode and at least 20 lines of plotting bytes should be sent. As the line of characters (which is
20 dots high) is printed, the plotting bytes overlay the characters. Notice that it is impossible to print characters on baselines that
differ by fewer than 20 dot-lines.
In print mode lines may be terminated either with an appropriate ASCII character or by using the remote terminate function.
FILES
/dev/vp0
SEE ALSO opr(1)VP(4)