Sponsored Content
Top Forums Shell Programming and Scripting Can this be made into one single line? Post 28571 by Perderabo on Friday 20th of September 2002 08:40:56 AM
Old 09-20-2002
Like Optimus_P, I don't understand why the OP is ignoring my solution to his problem. For the record, when the above input data is run against my script, it outputs:
Code:
Line: 20 At position 1 2 unmatched characters
Line: 20 At position 3 MATCH: rrrgds
Line: 20 At position 9 43 trailing characters
pvRRRGDSrgsllsprpvsylkgssggpllcpfghavgifraavctrgva


Line: 49 At position 1 39 unmatched characters
Line: 49 At position 40 MATCH: rhrars
Line: 49 At position 46 6 trailing characters
iierlhglsafslhsyspgeinrvasclrklgvpplrvwRHRARSvrarl

I then joined all of the lines together into one superline. And I commented out the 'echo "$image"' in my script so that it won't print out the line with matches upshifted. When the superline is run against my script, it outputs:
Code:
Line: 1 At position 1 952 unmatched characters
Line: 1 At position 953 MATCH: rrrgds
Line: 1 At position 959 289 unmatched characters
Line: 1 At position 1248 MATCH: rgrfvt
Line: 1 At position 1254 1186 unmatched characters
Line: 1 At position 2440 MATCH: rhrars
Line: 1 At position 2446 65 trailing characters

So I got one more match. This explains the motivation for trying to join the lines. I think a better solution is to modify the scripts to find matches across line boundaries. Eliminating the line boundaries is hard and neither of the solutions posted worked very well.

The data file has 2510 letters. That exceeds the maximum line that vi can handle, at least on HP-UX. So vi didn't work. As for the tr solution, I tried:
tr -s "\n" < file1 > file2
which kinda worked, but it left the file with no newline characters at all. Thus the file had zero lines. I used:
echo >> file2
to correct this problem.

At this point, my script worked and spit out the above results, but at some point, ksh will balk at reading a giant line. That's why switching to an algorithm that can match across line boundaries would be the better approach.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

single line input to multiple line output with sed

hey gents, I'm working on something that will use snmpwalk to query the devices on my network and retreive the device name, device IP, device model and device serial. I'm using Nmap for the enumeration and sed to clean up the results for use by snmpwalk. Once i get all the data organized I'm... (8 Replies)
Discussion started by: mitch
8 Replies

2. Shell Programming and Scripting

How to use Perl to join multi-line into single line

Hello, Did anyone know how to write a perl script to merge the multi-line into a single line where each line with start at timestamp Input--> timestamp=2009-11-10-04.55.20.829347; a; b; c; timestamp=2009-11-10-04.55.20.829347; aa; bb; cc; (5 Replies)
Discussion started by: happyday
5 Replies

3. Shell Programming and Scripting

Improve script made to calculate value based on present and previous line

Hi all, I have made at small script to make a simple calculation on a file which is formatted in this way: I want to create a new file in which the value of particular line minus the previous line is printed. So my wanted output is: I have made the following program to do the job... (5 Replies)
Discussion started by: s052866
5 Replies

4. Shell Programming and Scripting

Multiple lines in a single column to be merged as a single line for a record

Hi, I have a requirement with, No~Dt~Notes 1~2011/08/1~"aaa bbb ccc ddd eee fff ggg hhh" Single column alone got splitted into multiple lines. I require the output as No~Dt~Notes 1~2011/08/1~"aaa<>bbb<>ccc<>ddd<>eee<>fff<>ggg<>hhh" mean to say those new lines to be... (1 Reply)
Discussion started by: Bhuvaneswari
1 Replies

5. Shell Programming and Scripting

Joining multi-line output to a single line in a group

Hi, My Oracle query is returing below o/p ---------------------------------------------------------- Ins trnas value a lkp1 x a lkp1 y b lkp1 a b lkp2 x b lkp2 y ... (7 Replies)
Discussion started by: gvk25
7 Replies

6. Shell Programming and Scripting

Formatting File having big single line into 95 Char Per Line

Hi All, I have 4 big files which contains one big line containing formatted character records, I need to format each file in such way that each File will have 95 Characters per line. Last line of each file will have newline character at end. Before:- File Name:- File1.dat 102 121340560... (10 Replies)
Discussion started by: lancesunny
10 Replies

7. Shell Programming and Scripting

sed command to grep multiple pattern present in single line and delete that line

here is what i want to achieve.. i have a file with below contents cat fileName blah blah blah . .DROP this REJECT that . --sport 7800 -j REJECT --reject-with icmp-port-unreachable --dport 7800 -j REJECT --reject-with icmp-port-unreachable . . . more blah blah blah --dport 3306... (14 Replies)
Discussion started by: vivek d r
14 Replies

8. UNIX for Dummies Questions & Answers

To find and display the middle line in a file using single line command.

Hi all, How can i display the middle line of a file using a single line command? (6 Replies)
Discussion started by: Lakme Pemmaiah
6 Replies

9. UNIX for Beginners Questions & Answers

Output to file print as single line, not separate line

example of problem: when I echo "$e" >> /home/cogiz/file.txt result prints to file as:AA BB CC I need it to save to file as this:AA BB CC I know it's probably something really simple but any help would be greatly appreciated. Thank You. Cogiz (7 Replies)
Discussion started by: cogiz
7 Replies

10. Shell Programming and Scripting

Multi line log files to single line format

I want to read the log file which was generate from other command . And the output was having multi line in log files for job name and server name. But i need to make all the logs on one line Source file 07/15/2018 17:02:00 TRANSLOG_1700 Server0005_SQL ... (2 Replies)
Discussion started by: ranjancom2000
2 Replies
CG(1)																	     CG(1)

NAME
cg - Recursively grep for a pattern and store it. SYNOPSIS
cg [ -l ] | [ [ -i ] pattern [ files ] ] DESCRIPTION
cg does a search though text files (usually source code) recursively for a pattern, storing matches and displaying the output in a human- readable fashion. It is intended to give some of the functionaly of AT&T's cscope(1) tool, with the advantages of simplicity and not being language-specific. The script will colorize output if configured as such. It is typically run with a Perl regular expression to search for. The search can be made case insensitive by using the -i option. A list of files may also be specified with an additional argument after the pattern. Put the files pattern in quotes to make it be matched by Perl rather than by the shell. Running the script with no arguments will recall the results of the previous search. After the search, entries found can be edited using the vg(1) script. The -l option shows the last log made. SOME EXAMPLES
cg - alone recalls the previous search results. cg -i pattern - search the default list of files for all files matching the pattern (and case-insensitively). cg pattern '*.c' - search recursively for pattern in all *.c files. This automatically converts '*' to '.*' and '.' to '.' for you and does a Perl pattern match on all files in the tree. cg pattern *.c - search through the shell-expanded list of *.c files, so not done recursively (in other words, only the files your shell pass to the script as arguments). cg -l - show the last log made. COMMAND-LINE OPTIONS -i Do a case-insensitive search. -l Show the last log made. -p Toggle the default pager option. cg has a bulit-in pager function, which can be enabled or disabled by default (in .cgvgrc). If the default is enabled, this option disables the pager; if the default is disabled, this option enables it. -P Force the built-in pager to be disabled. FILES
${HOME}/.cglast Log file of the last search. ${HOME}/.cgvgrc Per-user configuration file (if the defaults are not desireable). ${HOME}/.cgvg/* Log files in $HOSTNAME.shell_pid form with the log of the last search. SEE ALSO
vg(1), perl(1), find(1), grep(1), cscope(1) AUTHOR
cg was written by Joshua Uziel <uzi@uzix.org>. 13 Mar 2002 CG(1)
All times are GMT -4. The time now is 09:25 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy