Sponsored Content
Top Forums UNIX for Dummies Questions & Answers emulating cat in sed with q option Post 302585391 by pandeesh on Wednesday 28th of December 2011 09:51:09 AM
Old 12-28-2011
Yes. But the thing is we don't know the number of lines in the file. It may be dynamic.
Is there any one liner available using "q" in this case?
We can do it after finding wc -l , then using "q" in sed.
But is there any other smarter way?
Thanks
 

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

use of sed over cat to merge files

I have three files, basically: file 1 - one line header file 2 - big data (approx 80GB) file 3 - a one line trailer the existing process cats these together i.e cat file 1 file 2 file 3 however... I was thinking, surely it could be more efficient to insert the header (file 1) on the... (2 Replies)
Discussion started by: miwinter
2 Replies

2. UNIX for Dummies Questions & Answers

tr, sed, awk, cat or scripting

I need to change all Newline caracters (\12) to Fieldseparator(\34). tr -A '\12' '\34' <file1> file2 Replace all delete (\177) with Newline (\12) tr -A '\177' '\12' <file2> file3 Put the name of the file first in all rows. awk '{printf "%s\34%s\n", FILENAME,$0} file3 > file4 So far no... (6 Replies)
Discussion started by: MrKlint
6 Replies

3. Shell Programming and Scripting

Help on cat with sed!

Hi All! I have a script having one statement like. cat xfile | sed 's/A/a/g' > xfile I have two boxes which have similar version of linux running but one is greater in speed compared to other. Lets say A is faster than B. A which is faster writes output as NULL B which... (6 Replies)
Discussion started by: kbalaji_uk
6 Replies

4. Shell Programming and Scripting

want to pass sentence with SED and CAT

I have to pass a sentence in a file, the specs are as: cat run | sed 's/SRT/'$8'/g' | sed 's/plength/68/g' | sed 's/stcol/'$5'/g' | sed 's/encol/'$6'/g' | sed 's/brdtype/'$1'/g' | sed 's/brdtxt/'$3'/g' | sed 's/demotxt/Total '$2'/g' | sed 's/bantxt/ban_'$7'/g' | sed 's/validcodes/'$4'/g' > runx... (1 Reply)
Discussion started by: patilrakesh1984
1 Replies

5. Shell Programming and Scripting

grep or cat using sed

Is there a way using grep or cat a file to create a new file based on whether the first 9 positions of each record is less than 399999999? This is a fixed file format. (3 Replies)
Discussion started by: ski
3 Replies

6. UNIX for Dummies Questions & Answers

sed -i option example

Can anyone give detailed and example for sed -i option. Where can we use this option?:) (3 Replies)
Discussion started by: gwgreen1
3 Replies

7. Shell Programming and Scripting

sed 'b' option

Hi, What does the following command do on files? sed '1b; $d' To me it just deletes the last line of the file. If so what is the significance of sed's 'b' option? Thanks (1 Reply)
Discussion started by: royalibrahim
1 Replies

8. Shell Programming and Scripting

sed with -e option

sed "s/^/8,A1,$dat,id2_3,/g" -e sed "s/$/,,,,,,,,,,,/g" temporary wn m running this script m getting a error... plz help me with this.... O/p sed: -e expression #1, char 3: unterminated `s' command ---------- Post updated at 11:35 AM ---------- Previous update was at 11:33 AM... (7 Replies)
Discussion started by: nikhil jain
7 Replies

9. Shell Programming and Scripting

sed -n option

Hi i am facing problem with sed -n option could you please help me on this, i have a file test the contents of the file is width="75">10/0 4/12</td>^M><a href='courtorders/100412zr.pdf' target="_blank">Miscellaneous Order</a></td>^M width="75">10/01/12</td>^M><a href='courtorde... (8 Replies)
Discussion started by: ragilla
8 Replies

10. UNIX for Dummies Questions & Answers

How to cat via ssh and sed at the same time.?

I am trying to write a script to automatically create conf files and remote servers. I would like to do all this without creating files locally and copying them . Here is what I have tried. sitename=$1 prodserver=$2 ssh $prodserver "cat > /data/$sitename.conf" << cat |sed... (5 Replies)
Discussion started by: macrossm
5 Replies
NWBPSET(1)							      nwbpset								NWBPSET(1)

NAME
nwbpset - Create a bindery property or set its value SYNOPSIS
nwbpset [ -h ] [ -S server ] [ -U user name ] [ -P password | -n ] [ -C ] DESCRIPTION
nwbpset Reads a property specification from the standard input and creates and sets the corresponding property. The format is determined by the output of 'nwbpvalues -c'. nwbpset will hopefully become an important part of the bindery management suite of ncpfs, together with As another example, look at the following command line: nwbpvalues -t 1 -o supervisor -p user_defaults -c | sed '2s/.*/ME/'| sed '3s/.*/LOGIN_CONTROL/'| nwbpset With this command, the property user_defaults of the user object 'supervisor' is copied into the property login_control of the user object 'me'. nwbpvalues -t 1 -o me -p login_control -c | sed '9s/.*/ff/'| nwbpset This command disables the user object me. Feel free to contribute other examples! nwbpset looks up the file $HOME/.nwclient to find a file server, a user name and possibly a password. See nwclient(5) for more information. Please note that the access permissions of $HOME/.nwclient MUST be 600 for security reasons. OPTIONS
-h -h is used to print out a short help text. -S server server is the name of the server you want to use. -U user user is the user name to use for login. -P password password is the password to use for login. If neither -n nor -P are given, and the user has no open connection to the server, nwbpset prompts for a password. -n -n should be given if no password is required for the login. -C By default, passwords are converted to uppercase before they are sent to the server, because most servers require this. You can turn off this conversion by -C. AUTHORS
nwbpset was written by Volker Lendecke. See the Changes file of ncpfs for other contributors. nwbpset 8/7/1996 NWBPSET(1)
All times are GMT -4. The time now is 10:12 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy