Sponsored Content
Full Discussion: Quick sed/awk question
Top Forums Shell Programming and Scripting Quick sed/awk question Post 302742173 by lucshi09 on Monday 10th of December 2012 04:50:53 PM
Old 12-10-2012
Quick sed/awk question

Hi fellow linux-ers,

I have a quick question for you. I have the following text, which I would like to modify:

Code:
10 121E(121) 16 Jan
34S 132E 24 Feb
42 176E(176) 18 Sep
21S 164E 25 May
15 171W(-171) 09 Jul

How can I do the following 2 modifications using sed and/or awk?
1. in 1st column, if a field has an "S", delete the "S" and add a "-" in front of number
2. in the 2nd column, delete the parenthesis and the number that exists within it

Thanks!!!
Moderator's Comments:
Mod Comment code tags please
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

a quick SED question

I have a line EXTDIR=`echo $i | sed 's/\-tar.gz//'` which looks for files ending in -tar.gz, i would like to increase the functionality so that it looks for .tar.gz files as well as -tar.gz. Do i put the - in square brackets with a dot ? like this EXTDIR=`echo $i | sed 's/\tar.gz//'` ... (1 Reply)
Discussion started by: hcclnoodles
1 Replies

2. Shell Programming and Scripting

quick sed question

hey, Im just wondering is there away to get sed to read from a variable eg it doesn't seem to work, i really need to be able to recursively change the same data set... (2 Replies)
Discussion started by: vbm
2 Replies

3. Shell Programming and Scripting

Sed or Awk Question

I have some text: 0400-0427 NA Czech Republic R. Prague 5990ca, 6200, 7345 0400-0456 NA, As Romania R. Romania Int'l 6115, 9515, 9690, 11895 0400-0500 NA U. S. A. WYFR 6065, 6855, 9505, 9715 0400-0500 NA,Eu,Af U. S. A. ... (8 Replies)
Discussion started by: petebear
8 Replies

4. Shell Programming and Scripting

Help with AWK -- quick question

Ok. I'm just starting to use AWK and I have a question. Here's what I'm trying to do: uname -n returns the following on my box: ftsdt-svsi20.si.sandbox.com I want to pipe this to an AWK statement and make it only print: svsi20 I tried: uname -n | awk '{ FS = "." ; print $1 }' ... (5 Replies)
Discussion started by: Probos
5 Replies

5. Shell Programming and Scripting

Quick Question on sed command in shell script

Hello, I have the following line in one of my shell scripts. It works fine when the search string($SERACH_STR) exists in the logfile($ALERTLOG) but if the search string does not exist this line errors out at run time. Is there a way to make this line return 0 if it is not able to find the... (4 Replies)
Discussion started by: luft
4 Replies

6. Shell Programming and Scripting

yet another sed/awk question

Unix Guru's , I have a file all_files.txt containing data as follows all_files.txt first file : /a/b/c/file.sh first second CLIENT1 second file : /a/b/c/file.sh first second CLIENT1 first file : /a/b/c/file.sh first second CLIENT2 second file : /a/b/c/file.sh first second... (6 Replies)
Discussion started by: jville
6 Replies

7. Shell Programming and Scripting

Quick Sed Question

Just want to know why when I do the following in sed, the required is not extracted. echo "ab01cde234" | sed 's/*$//' result: ab01cde (Which is correct) echo "ab01cde234" |sed 's/.*\(*\)$/\1/' result: blank (was expecting 234) or echo "ab01cde234" |sed 's/.*\(\)*$/\1/' result: blank... (6 Replies)
Discussion started by: eo29
6 Replies

8. Shell Programming and Scripting

awk Help: quick and easy question may be: How to use &&

Hi Guru's. I am trying to use to check if $5 is greater than 80 & if not 100, then to print $0 : awk '{ if ($5>80) && if ($5 != 100) print $0} But getting error: >bdf1|sed 's/%//g'|awk '{ if ($5>80) && if ($5 != 100) print $0}' syntax error The source line is 1. The error... (6 Replies)
Discussion started by: rveri
6 Replies

9. Shell Programming and Scripting

awk :quick question removing empty line.

How to write in awk to remove lines starting with "#" and then process the file: This is not working: cat file|awk '{if ($0 ~ /^#/) $0="";print NF>0}' When I just give cat file|awk '{if ($0 ~ /^#/) $0="";print }' it prints the blank lines . I don't wnat the blank lines along with the... (15 Replies)
Discussion started by: rveri
15 Replies

10. Shell Programming and Scripting

Quick awk question

gawk 'BEGIN{count=0} /^Jan 5 04:33/,0 && /fail/ && /09x83377/ { count++ } END { print count }' /var/log/syslog what is wrong with this code? i want to search the strings "fail" and "09x83377" from all entries. im grabbing all entries in the log starting from Jan 5 04:33 to the end of the... (3 Replies)
Discussion started by: SkySmart
3 Replies
COLUMN(1)						    BSD General Commands Manual 						 COLUMN(1)

NAME
column -- columnate lists SYNOPSIS
column [-tx] [-c columns] [-s sep] [file ...] DESCRIPTION
The column utility formats its input into multiple columns. Rows are filled before columns. Input is taken from file operands, or, by default, from the standard input. Empty lines are ignored. The options are as follows: -c Output is formatted for a display columns wide. -s Specify a set of characters to be used to delimit columns for the -t option. -t Determine the number of columns the input contains and create a table. Columns are delimited with whitespace, by default, or with the characters supplied using the -s option. Useful for pretty-printing displays. -x Fill columns before filling rows. Column exits 0 on success, >0 if an error occurred. ENVIRONMENT
COLUMNS The environment variable COLUMNS is used to determine the size of the screen if no other information is available. EXAMPLES
(printf "PERM LINKS OWNER GROUP SIZE MONTH DAY HH:MM/YEAR NAME " ; ls -l | sed 1d) | column -t SEE ALSO
colrm(1), ls(1), paste(1), sort(1) HISTORY
The column command appeared in 4.3BSD-Reno. AVAILABILITY
The column command is part of the util-linux-ng package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux-ng/. BSD
June 6, 1993 BSD
All times are GMT -4. The time now is 02:21 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy