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UNIX for Beginners Questions & Answers
How do delete certain lines alone which are matching with start and end string values in file?
Post 303040011 by Neo on Monday 21st of October 2019 10:16:25 PM
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10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I am attempting to delete blank lines in my file and I've used this command:
sed '/^$/d' $file > $file.fixed
all this seems to do is copy the file and not delete the blank lines located at the end of the file. Any assistance would be greatly appreciated. (3 Replies)
Discussion started by: TL56
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2. Shell Programming and Scripting
I have a text file, a sample of which is as follows:
r/- * 0: WINDOWS/Microsoft.NET/Framework/v2.0.50727/ASP.NETWebAdminFiles/Images/headerGRADIENT_Tall.gif
r/- * 0: WINDOWS/SoftwareDistribution/Download/cf8ec753e88561d2ddb53e183dc05c3e/backoff.jpg
r/- * 0: ... (2 Replies)
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3. Shell Programming and Scripting
Hi ,
I have below file with 13 columns. I need 2-13 columns seperated by comma and I want to append each row with a string "INSERT INTO xxx" in the begining as 1st column and then a variable "$node" and then $2,$3,$4,$5,$6,$7,$8,$9,$10,$11,$12,$13 and at the end another string " ; COMMIT;"
... (4 Replies)
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4. Shell Programming and Scripting
hello,
I go text file like this
E:/DDD/Dyndede/wwww
E:/DDD/sss.com/ffffg/fff
E:/DDD/vvvvvv/dd
E:/DDD/sss.com/bbbbbb
E:/DDD/sss.com/nnnn/xxI want to print
/alpha.jpg at the end of every lines like that
E:/DDD/Dyndede/wwww/alpha.jpg
E:/DDD/sss.com/ffffg/fff/alpha.jpg... (8 Replies)
Discussion started by: davidkhan
8 Replies
5. Shell Programming and Scripting
Hi,
1_strings file contains
$ cat 1_strings
/home/$USER/Src
/home/Valid
/home/Review$ cat myxml
<projected value="some string" path="/home/$USER/Src">
<input 1/>
<estimate value/>
<somestring/>
</projected>
<few more lines >
<projected value="some string" path="/home/$USER/check">... (4 Replies)
Discussion started by: greet_sed
4 Replies
6. Shell Programming and Scripting
Hello All,
Could you please help with this.
This is what I have:
506234.222 2
506234.222 2
506234.222 2
506234.222 2
508212.200 2
508212.200 2
333456.111 2
333456.111 2
333456.111 2
333456.111 2
But this is what I want:
506234.222 1
506234.222 2
506234.222 2
506234.222 3 (5 Replies)
Discussion started by: canimba
5 Replies
7. Shell Programming and Scripting
Hi,
I am trying to remove lines once a string is found till another string is found including the start string and end string. I want to basically grab all the lines starting with color (closing bracket). PS: The line after the closing bracket for color could be anything (currently 'more').... (1 Reply)
Discussion started by: Dabheeruz
1 Replies
8. Shell Programming and Scripting
Hi,
I have a scenario where I want to display the output based on the pattern search between the start and end of a block in a file, we can have multiple start and end blocks in a file.
Example give below, we need to search between the start block abc and end block def in a file, after that... (5 Replies)
Discussion started by: G.K.K
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9. Shell Programming and Scripting
I wish to search and delete all lines in /app/Jenkins/deploy.txt having this filename string /app/Jenkins/file2.mrt as entry:
I'm using : colon as delimiter in sed command as I'm dealing with file paths.
Below is the command I was expecting to work.
sed -i ":/app/Jenkins/file2.mrt:d"... (1 Reply)
Discussion started by: mohtashims
1 Replies
10. UNIX for Beginners Questions & Answers
Hi, I need to print lines which are matching with start pattern "SELECT" and END PATTERN ";" and only select the last "select" statement including the ";" .
I have attached sample input file and the desired input should be as:
INPUT FORMAT:
SELECT
ABCD,
DEFGH,
DFGHJ,
JKLMN,
AXCVB,... (5 Replies)
Discussion started by: nani2019
5 Replies
LEARN ABOUT PLAN9
mesg
MESG(1) User Commands MESG(1) NAME
mesg - display (or do not display) messages from other users SYNOPSIS
mesg [option] [n|y] DESCRIPTION
The mesg utility is invoked by a user to control write access others have to the terminal device associated with standard error output. If write access is allowed, then programs such as talk(1) and write(1) may display messages on the terminal. Traditionally, write access is allowed by default. However, as users become more conscious of various security risks, there is a trend to remove write access by default, at least for the primary login shell. To make sure your ttys are set the way you want them to be set, mesg should be executed in your login scripts. ARGUMENTS
n Disallow messages. y Allow messages to be displayed. If no arguments are given, mesg shows the current message status on standard error output. OPTIONS
-v, --verbose Explain what is being done. -V, --version Display version information and exit. -h, --help Display help text and exit. EXIT STATUS
The mesg utility exits with one of the following values: 0 Messages are allowed. 1 Messages are not allowed. >1 An error has occurred. FILES
/dev/[pt]ty[pq]? SEE ALSO
login(1), talk(1), write(1), wall(1), xterm(1) HISTORY
A mesg command appeared in Version 6 AT&T UNIX. AVAILABILITY
The mesg command is part of the util-linux package and is available from https://www.kernel.org/pub/linux/utils/util-linux/. util-linux July 2014 MESG(1)