Visit Our UNIX and Linux User Community


How to delete either of one line from file.?


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting How to delete either of one line from file.?
# 1  
Old 10-11-2013
How to delete either of one line from file.?

Hi gurus,

I have one file it may contains one line is "START" or "FINISH" either one of them.
I use below command to delete it, but it doens't work.
Code:
sed '/^START\|^END/d' <inputfile > outfile

anybody can help me to fix this.


thanks in advance.

Last edited by vbe; 10-11-2013 at 01:40 PM.. Reason: code tags
# 2  
Old 10-11-2013
If using sed:

Code:
sed -e '/^START/d' -e '/^END/d' < inputfile > outputfile

This User Gave Thanks to cjcox For This Post:
# 3  
Old 10-11-2013
An awk Approach

Code:
$ awk '!/START/&&!/END/'  inputfile >outputfile

# 4  
Old 10-11-2013
Quote:
Originally Posted by cjcox
If using sed:

Code:
sed -e '/^START/d' -e '/^END/d' < inputfile > outputfile

Thanks for your quick replay,
I got another issue.
I tried it in command line, it works
but if I put in script, it doesn't work.
below is the portition, it print out "here", but doesn't delete the line
Code:
else
echo "here"
sed -e '/^ALL/d' -e '/^FILE/d' < file> file_tmp
#mv file_tmp file

Thanks again.
# 5  
Old 10-11-2013
You can also use grep

Code:
grep -v -E '^(END|START)'  infile >outfile

This User Gave Thanks to Akshay Hegde For This Post:
# 6  
Old 10-11-2013
Quote:
Originally Posted by Akshay Hegde
You can also use grep

Code:
grep -v -E '^(END|START)'  infile >outfile

when using below command
i got error.
Code:
grep -v -E '^(END|START)' infile

Code:
grep: illegal option -- E
Usage: grep -hblcnsviw pattern file . . .

My OS is
SunOS 5.10 Generic_144488-17 sun4v sparc SUNW,SPARC-Enterprise-

any idea?

Thanks
# 7  
Old 10-11-2013
See

Code:
$ cat abc 
START

HAI 
HEKKO
FOO
FOOA
END
FOO
NNO

Code:
$ grep -v -E '^(END|START)' abc 

HAI 
HEKKO
FOO
FOOA
FOO
NNO

try with egrep or with small e
This User Gave Thanks to Akshay Hegde For This Post:

Previous Thread | Next Thread
Test Your Knowledge in Computers #57
Difficulty: Easy
In a Database Management System (DBMS), the content and the location of the data is defined by the meta data.
True or False?

10 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

File same line delete

Hi, I want to do file1 to file2. Rows will be different every time. Thanks. file1 Fru-Name :BCNMB-B Fru-Location :/chassis-1/motherboard-1 Node-Name :LMP-1-1-1 Fru-Name :BMPP2-B Fru-Location :/chassis-1/slot-1 Node-Name :CFPU-0 Fru-Name :BMPP2-B Fru-Location... (2 Replies)
Discussion started by: ozcanaydin
2 Replies

2. UNIX for Advanced & Expert Users

How to find a string in a line in UNIX file and delete that line and previous 3 lines ?

Hi , i have a file with data as below.This is same file. But actual file contains to many rows. i want to search for a string "Field 039 00" and delete that line and previous 3 lines in that file.. Can some body suggested me how can i do using either sed or awk command ? Field 004... (7 Replies)
Discussion started by: vadlamudy
7 Replies

3. Shell Programming and Scripting

Delete a particular line from a file

I have a file of following form 2886758410 2886758500 17 1999-Mar-18 16:26:26 1 0 52 139 1129 2886758420 2886758500 17 1999-Mar-18 16:26:35 1 0 52 139 1131 2886758420 2886758500 17 1999-Mar-18 16:26:41 0 0 56 56 1132... (4 Replies)
Discussion started by: vaibhavkorde
4 Replies

4. Shell Programming and Scripting

Delete line from file

hi all, i have trackfile.txt which contains the data as 0 /home8/mc09ats/UnixCw/t1 1 /home8/mc09ats/UnixCw/t2 2 /home8/mc09ats/UnixCw/t3 3 /home8/mc09ats/UnixCw/t4 if user says delete 1 then i want to delete 1 /home8/mc09ats/UnixCw/t2 line from... (3 Replies)
Discussion started by: AbhijitIT
3 Replies

5. Shell Programming and Scripting

Delete first line from file and more....

Hello, I have to deal with several files that will be named something like this: E00001.TXT, E00002.TXT etc. Each file will have a alpha character on the first position of the first line which I want to place in a variable, then delete the entire line leaving the remainder of text. This new file... (6 Replies)
Discussion started by: dfb500
6 Replies

6. UNIX for Dummies Questions & Answers

Delete a line from a file

Hi, Need to delete a line from a file, file is too large so cannot use vi. I know the line number that has to be deleted... How can this be done ? (8 Replies)
Discussion started by: rohini
8 Replies

7. Shell Programming and Scripting

how to delete a line from the file

Hi, I have a file which contains entries with different numbers, for example: 275|24hroff|sel,fill,dbw| 2758|24hroff|sel,fill,dbw| 2765|24hroff|sel,fill,dbw| 2920|24hroff|sel,fill,dbw| I need to delete a line which contains certian number, for instance 275 I was trying to use 'sed' but... (3 Replies)
Discussion started by: aoussenko
3 Replies

8. UNIX for Dummies Questions & Answers

How to delete line from a file

Hi , I have a file it content is like that /vol.nas/u08/aip_triage/hany/Tesko/:CC::RPAS /home/biblawh/myscript:CC::RPAS i need to search for a certain pattern inside that file and delete the line if i find this pattern without redirecting the output into another file . so i used the... (0 Replies)
Discussion started by: ramezernest
0 Replies

9. Shell Programming and Scripting

delete line in a file

Hi all, I would like to delete a line in file.txt which has a list of filename. example: file_a file_b file_c lets say i have file_b in my directory, then i should delete file_b in file.txt and get output file.txt with only file_a and file_b. Below is my script, my result is still ... (12 Replies)
Discussion started by: dta4316
12 Replies

10. UNIX for Dummies Questions & Answers

Delete line(s) from file

What is the easiest way to delete a line from a file? I have a file that contains list for Domestic and Foreign customers. I want to delete all lines staring with Foreing. TIA (4 Replies)
Discussion started by: elchalateco
4 Replies

Featured Tech Videos