Ignore identical lines Post: 302259879

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Ignore Lines Begining With #

Is there a standard way to make a shell script read a file, or list, and skip each line that contains # at the begining, or ignores the content starting after a # in line? I'm looking to mimic the way commenting in a shell script normally works. This way I can comment my text files and lists my...

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How can I ignore only the lines which have # at the begining?

From the below file I want to grep only the lines except the comment sections. But grep -v "#" is eliminating the last line because it has one # in between. Any idea how can I ignore only the lines which have # at the begining (I mean comment lines) ? Thanks a lot to all in advance C Saha

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replace 2 identical strings on different lines

I am looking to replace two or more strings on different lines using sed, but not with the same variable. IE # cat xxx.file <abc> abc def ghi abc def ghi abc def ghi currently I can only change each line with the same pattern: # sed -e '/<abc>/!s/abc$.*$/jkl mno/' xxx.file abc jkl mno...

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expect - How to ignore empty lines?

Hi all, I'm looking for a way to generate an error when a command does not print an expected message. For example : test.sh : echo hi!test.exp : exp_internal 1 spawn ./test.sh expect { "hi!" {puts "bingo!"} "*" {puts "error!" ; exit 1} } I expected test.exp to match the string...

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more than 10 identical lines

I have a file that looks like this 10 user1s, 5 user2s and 10 users3. 10.10.1.1 user1 10.10.1.1 user1 10.10.1.1 user1 10.10.1.1 user1 10.10.1.1 user1 10.10.1.1 user1 10.10.1.1 user1 10.10.1.1 user1 10.10.1.1 user1 10.10.1.1 user1 10.10.1.2 user2 10.10.1.2 user2 10.10.1.2 user2...

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Scan a file in realtime and execute certain commands on encountering 5 consecutive identical lines

Mysql log has something like below: I need a bash shell script that will do the following: 1) The script will scan the mysql.log file constantly in real time (something like tail -F mysql.log) 2) If it encounters 5 consecutive identical lines then it would invoke some commands (say...

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sed print all lines between second and third identical lines

I am trying to extract a table of data (mysql query output) from a log file. I need to print everything below the header and not past the end of the table. I have spent many hours searching with little progress. I am matching the regexp +-\{99\} with no problem. I just can't figure out how to print...

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Combine identical lines and average the one variable field

I have the following file 299899 chrX_299716_300082 196 78.2903 299991 chrX_299982_300000 18.2538 Tajd:0.745591 FayWu:-0.245701 T2:1.45 299899 chrX_299716_300082 196 78.2903 299991 chrX_299982_300000 18.2538 Tajd:0.745591 FayWu:-0.245701 T2:0.283 311027 chrX_310892_311162 300 91.6452...

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How to delete identical lines while leaving one undeleted?

Hi, I have a file as follows. file1 Hello Hi His Hi Hi Hungry hi so I want to delete identical lines while leaving one of them undeleted. So desired output will be Hello Hi

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awk - If field value of consecutive records are the identical print portion of lines

I have some data that looks like this: PXD= ZW< 1,6 QR> QRJ== 1,2(5) QR> QRJ== 4,1(2) QR> QRJ== 4,2 QRB= QRB 4,2 QWM QWM 6,2 R<C ZW< 11,2 R<H= R<J= 6,1 R>H XZJ= 1,2(2) R>H XZJ= 2,6(2) R>H XZJ= 4,1(2) R>H XZJ= 6,2 RDP RDP 1,2 What I would like to do is if fields $1 and $2 are...

LEARN ABOUT OPENSOLARIS

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).

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +--------------------+-----------------+
       |  ATTRIBUTE TYPE    | ATTRIBUTE VALUE |
       +--------------------+-----------------+
       |Availability	    | SUNWgawk	      |
       +--------------------+-----------------+
       |Interface Stability | Volatile	      |
       +--------------------+-----------------+
NOTES

       Source for gawk is available on http://opensolaris.org.

Free Software Foundation					    Nov 3 1999								  IGAWK(1)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Ignore Lines Begining With #

Discussion started by: sysera

2. Shell Programming and Scripting

How can I ignore only the lines which have # at the begining?

Discussion started by: csaha

3. Shell Programming and Scripting

replace 2 identical strings on different lines

Discussion started by: prkfriryce

4. Shell Programming and Scripting

expect - How to ignore empty lines?

Discussion started by: whbos