Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

multiple sed commands

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting multiple sed commands
# 1  
Old 03-29-2006
multiple sed commands
hello!
I have a few sed commands
sed '/^$/d' < $1 > tmp.t
sed '/^ \{3,\}/d' < tmp.t > tmp1.txt
.....
how can I write them in a single line?

sed '/^$/d' < $1 > | '/^ \{3,\}/d' < $1 > tmp1.txt

any idea?

thanks.
# 2  
Old 03-29-2006
I assume you want to remove all the empty lines in the files.

Code:
sed -e "/^[ <tab>]*$/d" < $1 > tmp.t

# 3  
Old 03-29-2006
>I assume you want to remove all the empty lines in the files.

no!

I want in general,to use multiple sed commands,not just to delete empty lines.
# 4  
Old 03-30-2006
any idea unix guys??


help me!


thanks.
# 5  
Old 03-30-2006
I think u want this........
sed -e '/^$/d' -e '/^ \{3,\}/d' Inputfilename
but beware it may not give the same result as the sequential application of the same commands....
Regards.
# 6  
Old 03-30-2006
or separate multiple sed commands with semicolons:

sed '/^$/d;/^ \{3,\}/d' < $1 > tmp1.txt

cheers
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

Use sed commands on multiple lines

I have a text file and i want to run 3 sed commands for the lines entered by the user using perl script. I am doing this manually till now. need some help with this The sed commands I have to use are : sed -i "s/{+//" error.txt sed -i "s/+}//" error.txt sed -i "s/\//g" error.txt... (5 Replies)
Discussion started by: utkarshkhanna44
5 Replies

2. Shell Programming and Scripting

sed parser behaving strange on replacing multiple words in multiple files

I have 4000 files like $cat clus_grp_seq10_g.phy 18 1002 anig_OJJ65951_1 ATGGTTTCGCAGCGTGATAGAGAATTGTTTAGGGATGATATTCGCTCGCGAGGAACGAAGCTCAATGCTGCCGAGCGCGAGAGTCTGCTAAGGCCATATCTGCCAGATCCGTCTGACCTTCCACGCAGGCCACTTCAGCGGCGCAAGAAGGTTCCTCG aver_OOF92921_1 ... (1 Reply)
Discussion started by: sammy777888
1 Replies

3. UNIX for Advanced & Expert Users

Pass Multiple Commands and Open Multiple Xterms via PSS

Hello, I'm attempting to open multiple xterms and run a command as an SAP user via sudo using PSSH. So far, I'm able to run PSSH to a file of servers with no check for keys, open every xterm in to the servers in the file list, and SUDO to the SAP(ADM) user, but it won't do anything else... (11 Replies)
Discussion started by: icemanj
11 Replies

4. Shell Programming and Scripting

Using sed to execute multiple commands

Let's say I have a file called test.out. In this file I want to do the following: 1. Search for DIP-10219 and with this: 2. Remove everything in front of cn= 3. Remove everything after *com 4. Remove duplicate lines 5. Replace ( with \( 6. Replace ) with \) For 1-3 I have figured out this... (11 Replies)
Discussion started by: exm
11 Replies

5. Shell Programming and Scripting

Variables into SED or AWK and multiple commands

Hello I am hoping you may help. I am not sure how to go about this exactly, I know the tools but not sure how to make them work together. I have two SED commands that I would like to run in a shell script. I would like to take the manual input of a user (types in when prompted) to be used... (4 Replies)
Discussion started by: lostincashe
4 Replies

6. Shell Programming and Scripting

perform 3 awk commands to multiple files in multiple directories

Hi, I have a directory /home/datasets/ which contains a bunch (720) of subdirectories called hour_1/ hour_2/ etc..etc.. in each of these there is a single text file called (hour_1.txt in hour_1/ , hour_2.txt for hour_2/ etc..etc..) and i would like to do some text processing in them. Each of... (20 Replies)
Discussion started by: amarn
20 Replies

7. Solaris

Help with executing multiple remote commands after multiple hops

Hi SSHers, I have embedded this below code in my shell script.. /usr/bin/ssh -t $USER@$SERVER1 /usr/bin/ssh $USER2@S$SERVER2 echo uptime:`/opt/OV/bin/snmpget -r 0 -t 60 $nodeName system.3.0 | cut -d: -f3-5` SSH to both these servers are public-key authenticated, so things run... (13 Replies)
Discussion started by: LinuxUser2008
13 Replies

8. UNIX for Dummies Questions & Answers

best method of replacing multiple strings in multiple files - sed or awk? most simple preferred :)

Hi guys, say I have a few files in a directory (58 text files or somthing) each one contains mulitple strings that I wish to replace with other strings so in these 58 files I'm looking for say the following strings: JAM (replace with BUTTER) BREAD (replace with CRACKER) SCOOP (replace... (19 Replies)
Discussion started by: rich@ardz
19 Replies

9. Shell Programming and Scripting

Putting multiple sed commands on a single line

Hi, I want to make sed write a part of fileA (first 7 lines) to file1 and the rest of fileA to file2 in a single call and single line in sed. If I do the following: sed '1,7w file1; 8,$w file2' fileA I get only one file named file1 plus all the characters following file1. If I try to use curly... (1 Reply)
Discussion started by: varelg
1 Replies

10. Shell Programming and Scripting

sed: Multiple Commands applied to an address

Trying to write a sed command that applies multiple replacements to a specific address. Need a second pair of eyes I guess cause my syntax appears to be correct (obviously not though) I am getting an error. Any Help would be appreciated! Thanks in advance. sed -f foo envOracle sed: Function... (2 Replies)
Discussion started by: google
2 Replies
Login or Register to Ask a Question