awk or sed to print the character from the previous line after the regexp match Post: 303042116

Sponsored Content

Top Forums UNIX for Beginners Questions & Answers awk or sed to print the character from the previous line after the regexp match Post 303042116 by RudiC on Sunday 15th of December 2019 10:10:41 AM

12-15-2019

Registered User

Your post headings are somewhat contradictory. If happy with awk and not insist on TCL, try

Code:

awk '
NR < 4          {if (NR == 1) ST = index ($0, "p")
                 for (i=ST; i<=NF; i+=2) P[i] = P[i] $i
                 next
                }
!NF             {next
                }

/patt/          {print substr ($0, 1, ST-1), "pin-number expected"
                 next
                }

                {getline TMP
                 PTR = 0
                 while (IX = index (TMP, "^"))  {print substr ($0, 1, ST-1), P[IX+PTR], substr ($0, IX+PTR, 1)
                                                 PTR = IX
                                                 TMP = substr (TMP, PTR+1)
                                                }
                }
' FS="" file
pattern     offset                       pin-number expected
scan1        2965                        p13 H
scan2        2200                        p22 H
scan3        1100                        p22 L
scan4        1500                        p13 H
scan5        2800                        p22 H
scan5        2800                        p95 H

This User Gave Thanks to RudiC For This Post:

RudiC

View Public Profile for RudiC

Find all posts by RudiC

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

print the line immediately after a regexp; but regexp is a sentence

Good Day, Im new to scripting especially awk and sed. I just would like to ask help from you guys about a sed command that prints the line immediately after a regexp, but not the line containing the regexp. sed -n '/regexp/{n;p;}' filename What if my regexp is 3 word or a sentence. Im...

2. Shell Programming and Scripting

Print previous, current and next line using sed

Hi, how can i print the previous, current and next line using sed? current line is the matching line. The following prints all lines containing 'Failure' and also the immediate next line cat $file | sed -n -e '/Failure/{N;p;}' Now, i also want to print the previous line too. Thanks,...

3. Shell Programming and Scripting

awk;sed appending line to previous line....

I know this has been asked before but I just can't parse the syntax as explained. I have a set of files that has user information spread out over two lines that I wish to merge into one: User1NameLast User1NameFirst User1Address E-Mail:User1email User2NameLast User2NameFirst User2Address...

4. Shell Programming and Scripting

How to use sed to search for string and Print previous two lines and current line

Hello, Can anybody help me to correct my sed syntax to find the string and print previous two lines and current line and next one line. i am using string as "testing" netstat -v | sed -n -e '/test/{x;2!p;g;$!N;p;D;}' -e h i am able to get the previous line current line next line but...

5. UNIX for Dummies Questions & Answers

Awk to print data from current and previous line

Hi guys, I have found your forum super useful. However, right now I am stuck on a seemingly "simple" thing in AWK. I have two columns of data, the first column in Age (in million years) and the second column is Convergence Rate (in mm/yr). I am trying to process my data so I can use it to...

6. Shell Programming and Scripting

awk, sed or perl regexp to print values from file

Hello all According to the following file (orignal one contains 200x times the same structure...) I was wondering if someone could help me to print <byte>??</byte> values example, running this script/command like ./script.sh xxapp I would expect as output: 102 116 112 ./script.sh xxapp2...

7. Shell Programming and Scripting

Remove previous line if next & previous lines have same 4th character.

I want to remove commands having no output. In below text file. bash-3.2$ cat abc_do_it.txt grpg10so>show trunk group all status grpg11so>show trunk group all status grpg12so>show trunk group all status GCPKNYAIGT73IMO 1440 1345 0 0 94 0 0 INSERVICE 93% 0%...

8. Shell Programming and Scripting

sed print first line before regexp and all lines after

Hi All I'm trying to extract the line just above a regexp and all lines after this. I'm currently doing this in two steps sed -n -e "/^+---/{g;p;}" -e h oldfile.txt > modified.txt sed -e "1,/^+---/d" -e "/^$/d" oldfile.txt >>modified.txt Sample sometext will be here sometext will be...

9. Shell Programming and Scripting

awk script -print line when $2 > $2 of previous line

Hi all, From a while loop I am reading a sorted file where I want to print only the lines that have $1 match and $2 only when the difference from $2 from the previous line is > 30. Input would be like ... AN237 010 193019 0502 1 CSU Amoxycillin AN237 080 ...

10. AIX

Print nth previous line after match

Please help me print nth line after match awk or sed one line command.

LEARN ABOUT LINUX

igawk

IGAWK(1)							 Utility Commands							  IGAWK(1)

NAME

       igawk - gawk with include files

SYNOPSIS

       igawk [ all gawk options ] -f program-file [ -- ] file ...
       igawk [ all gawk options ] [ -- ] program-text file ...

DESCRIPTION

       Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1).

       AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like

	      @include getopt.awk

       in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path.

OPTIONS

       See gawk(1) for a full description of the AWK language and the options that gawk supports.

EXAMPLES

       cat << EOF > test.awk
       @include getopt.awk

       BEGIN {
	    while (getopt(ARGC, ARGV, "am:q") != -1)
		 ...
       }
       EOF

       igawk -f test.awk

SEE ALSO

       gawk(1)

       Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995.

AUTHOR

       Arnold Robbins (arnold@skeeve.com).

Free Software Foundation					    Nov 3 1999								  IGAWK(1)

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

print the line immediately after a regexp; but regexp is a sentence

Discussion started by: ownins

2. Shell Programming and Scripting

Print previous, current and next line using sed

Discussion started by: ysrinu

3. Shell Programming and Scripting

awk;sed appending line to previous line....

Discussion started by: walkerwheeler

4. Shell Programming and Scripting

How to use sed to search for string and Print previous two lines and current line

Discussion started by: nmadhuhb