Visit Our UNIX and Linux User Community

problems using sed

Thread Tools Search this Thread
Top Forums Shell Programming and Scripting problems using sed
# 1  
Old 04-21-2009
problems using sed

i have a file which has about 10 lines and then i have defined $var which has a line number in it (say 5). i want to extarct from line 5 to the end of the file and put the output into another file. I have used
sed -n $var,'$p' | tee
but at times it does'nt work and gives an error like
sed: -e expression #1, char 1: unknown command: `,'
can you help me with this.
# 2  
Old 04-21-2009
 sed "$var,\$ p" | tee

escape the second $ character add a space before the p character.
# 3  
Old 04-21-2009
doen't copies the whole file
# 4  
Old 04-21-2009
What OS and sed are you using? Works for me on HPUX 11.23 sed under /bin/ksh
# 5  
Old 04-21-2009
if is

then the output that i get is v5c01

my code is
sed 's/
s/' 2>&1 | tee

i want to find and replace it with v5c0
and find and replace it with acc1

and i want to do it using sed
# 6  
Old 04-21-2009
use > not |
sed "$var,\$ p" >

I though was a shell script executing your output, my bad.
# 7  
Old 04-21-2009
it works now thanks Smilie ...can you please help me with the second problem as well

Previous Thread | Next Thread
Test Your Knowledge in Computers #201
Difficulty: Easy
Perl is implemented as a core interpreter, written in C, together with a large collection of modules, written in Perl and C.
True or False?

10 More Discussions You Might Find Interesting

1. HP-UX

sed help with underscore problems

Hello, I have spent a couple of hours trying to answer this myself, so forgive me if the answer is simple but I have tried. I have a text file generated from svn log output which contains a list of files. Two regexps im using are * and * They both work but some lines has a mixture... (7 Replies)
Discussion started by: YogaBija
7 Replies

2. Shell Programming and Scripting

Execution problems with sed

Hi,I confused how to use sed to deal with big file. example: the big file have some different urls just with filename. how can i use sed to fetch url except file name and replace to other urls with filename? thanks!!! (11 Replies)
Discussion started by: hshzh359
11 Replies

3. Homework & Coursework Questions

Execution Problems with sed

Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted! 1. The problem statement, all variables and given/known data: Okay so I am taking bash scripting this semester and we are now working on the stream editor sed. For our book we... (4 Replies)
Discussion started by: aggie6970
4 Replies

4. UNIX for Advanced & Expert Users

problems with sed

$ echo "a,0,0,0,b,0" | sed 's/,0,/,1,/g' gives output as $ a,1,0,1,b,0 rather than as a,1,1,1,b,0 how can i solve this problem Thanks a lot in advance.... Use code tags. (4 Replies)
Discussion started by: manishma71
4 Replies

5. Shell Programming and Scripting

2 problems... sed and sort

Hi everyone! I have a file like that: And I would it like that: I don't know how to keep the first field and sort the second one. I have a second question with sed... to put the variable $VAR at the beginning of the file... But I have an output like this: snork... (3 Replies)
Discussion started by: Castelior
3 Replies

6. Solaris

Sed problems on Solaris 10

Hi, The config file: # Port(s) for accepting client connections RTSPPort=554 bash-3.00# awk -F"=" -v gr="888" '/RTSPPort/{$2=gr;}1' OFS="=" server.ini awk: syntax error near line 1 awk: bailing out near line 1 Can you help me on why this doesn't work. The next one neighter. Dosn't... (0 Replies)
Discussion started by: potro
0 Replies

7. Shell Programming and Scripting

Having problems with sed: can't replace $1

At the moment, I'm trying to do the following: 1. Have sed read the first line of a file Example (file1.x): 5 2. Replace that first line with a new first line, which would read 5=newvariable 3. Have that information placed into file2.y Unfortunately, I'm having a problem. Sed... (5 Replies)
Discussion started by: Agent-X
5 Replies

8. Shell Programming and Scripting

Problems with SED

I have a group of xml files and I need to insert 3 parameters just after this line in each file: ---------------Pattern to be searched for------------------------- <!--The following configuration is a test configuration--> ---------------Parameters to be added---------------------------... (11 Replies)
Discussion started by: collern2
11 Replies

9. UNIX for Dummies Questions & Answers

Problems with sed

Hi, I'm trying to use the sed command but I'm not sure how to use it properly. I've read the man pages for the sed command but I'm still unsure on how to use it. Basically I have a file with the words male and female written multiple times. I want to swap the word male for female and... (4 Replies)
Discussion started by: tugade
4 Replies

10. UNIX for Dummies Questions & Answers

sed file problems

when i am running a sed command i want to get rid of all of the backslashes in the lin but it is taking this as being a command how do i delete backslashes????? sed -e "s/\/g" Anyn ideas????????? (7 Replies)
Discussion started by: johnnynolegs
7 Replies

Featured Tech Videos