I have a file like this - I want to remove the 2015 (or any four digit #) from column $4 so I can get:
Code:
Nov 05 1997 /ifs/inventory2/
for example. Im not sure how. Should I use an if statement with awk?
Code:
Jan 16 2015 23:45 /ifs/sql_file
Jan 16 2015 23:45 /ifs/sql_file
Nov 05 2015 1997 /ifs/inventory2/
Nov 05 2015 1997 /ifs/inventory8/
Nov 05 2015 1997 /ifs/inventory7/
Nov 05 2015 1997 /ifs/inventory6/
Nov 05 2015 1997 /ifs/inventory5/
What I have got is this:
Code:
/tmp/filez1 |gawk '{if ($4 ~/1997/) }
but I don't know how to remove the 2015
from the file when 1997 is present.
I don't want anything removed from lines that do not have 1997
Moderator's Comments:
Using CODE tags isn't that hard. Please read the personal mail that received along with your infraction and review the tutorial that is included.
Last edited by Don Cragun; 01-18-2016 at 04:17 PM..
Reason: Change HTML tag to CODE tag to match closing CODE tag; add CODE and ICODE tags.
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. ($6 in awk). I've... (10 Replies)
Need to remove rest of line after the equals sign on search pattern from the searchfile. Can anybody help. Couldn't find any similar example in the forum:
infile:
64_1535: Delm. = 86 var, aaga
64_1535: Fran. = 57 ex. ccc
64_1639: Feb. = 26 (link). def
64_1817: mar. = 3/4. drz ... (7 Replies)
awk , sed Experts,
I want to remove first and last line after pattern match "vg" :
I am trying : # sed '1d;$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)
I am an awk beginner and need help figuring out how to search for a number in the first column and if it (or anything greater) exists, remove those lines.
AM11400012012 2.26 2.12 1.98 2.52 3.53 3.01 3.62 5.00 3.65 7.95 0.79 3.88 0.00
AM11400012013 3.39 2.29 ... (1 Reply)
the following pattern match works correctly for me
awk '/name="Fruits"/{f=1;next} /"name=Vegetables"/{f=0} f' filename
This works well for me. Id like to temporarily move the match out of the file ( > newfile) and be able to stick it back in the same place at a later time.
Is this... (7 Replies)
Hi
I need to do a patten match between files .
I am new to shell scripting and have come up with this so far. It take 50 seconds to process files of 2mb size . I need to tune this code as file size will be around 50mb and need to save time.
Main issue is that I need to search the pattern from... (2 Replies)
Sorry for the weird title but i have the following problem.
We have several files which have between 10000 and about 500000 lines in them. From these files we want to remove lines which contain a pattern which is located in another file (around 20000 lines, all EAN codes). We also want to get... (28 Replies)
In the awk below I am trying to remove all instances after a ; (semi-colon) or , (comma) in the ANN= pattern. I am using gsub
to substitute an empty string in these, so that ANN= is a single value (with only one value in it the one right after the ANN=). Thank you :).
I have comented my awk and... (11 Replies)
In the awk below I am trying to remove all lines above and including the pattern Test or Test2. Each block is seperated by a newline and Test2 also appears in the lines to keep but it will always have additional text after it. The Test to remove will not. The awk executed until the || was added... (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 OSX
ppmtosixel
ppmtosixel(1) General Commands Manual ppmtosixel(1)NAME
ppmtosixel - convert a portable pixmap into DEC sixel format
SYNOPSIS
ppmtosixel [-raw] [-margin] [ppmfile]
DESCRIPTION
Reads a portable pixmap as input. Produces sixel commands (SIX) as output. The output is formatted for color printing, e.g. for a DEC
LJ250 color inkjet printer.
If RGB values from the PPM file do not have maxval=100, the RGB values are rescaled. A printer control header and a color assignment table
begin the SIX file. Image data is written in a compressed format by default. A printer control footer ends the image file.
OPTIONS -raw If specified, each pixel will be explicitly described in the image file. If -raw is not specified, output will default to com-
pressed format in which identical adjacent pixels are replaced by "repeat pixel" commands. A raw file is often an order of magni-
tude larger than a compressed file and prints much slower.
-margin
If -margin is not specified, the image will be start at the left margin (of the window, paper, or whatever). If -margin is speci-
fied, a 1.5 inch left margin will offset the image.
PRINTING
Generally, sixel files must reach the printer unfiltered. Use the lpr -x option or cat filename > /dev/tty0?.
BUGS
Upon rescaling, truncation of the least significant bits of RGB values may result in poor color conversion. If the original PPM maxval was
greater than 100, rescaling also reduces the image depth. While the actual RGB values from the ppm file are more or less retained, the
color palette of the LJ250 may not match the colors on your screen. This seems to be a printer limitation.
SEE ALSO ppm(5)AUTHOR
Copyright (C) 1991 by Rick Vinci.
26 April 1991 ppmtosixel(1)
01-18-2016
