Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

cat and empty lines

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting cat and empty lines
# 1  
Old 11-13-2003
cat and empty lines
Hi ,

i'm searching for an easy solution to list a file without empty lines ,
i haven't found with cat and grep !

Anybody has an idea ?

thanks in advance

christian
# 2  
Old 11-13-2003
grep . file
# 3  
Old 11-13-2003
Thanks a lot !

What a wonderful forum !

Can you explain what is the meaning of the point in this case ?

christian
# 4  
Old 11-13-2003
Period
From man regexp ...
Quote:
A period (.), when used outside of a bracket expression, is a basic Regular Expression that matches any printable or nonprintable character except <newline>
# 5  
Old 11-13-2003
Thanks for all

christian
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Joining broken lines and removing empty lines

Hi - I have req to join broken lines and remove empty lines but should NOT be in one line. It has to be as is line by line. The challenge here is there is no end of line/start of line char. thanks in advance Source:- 2003-04-34024|04-10-2003|Claims|Claim|01-13-2003|Air Bag:Driver;... (7 Replies)
Discussion started by: Jackceasar123
7 Replies

2. UNIX for Dummies Questions & Answers

Remove blank lines using cat command

plz help me to figure it out how i remove empty or blank files using cat command. i will be very thankful if u send me this answer... thanks (3 Replies)
Discussion started by: mushfiks1
3 Replies

3. UNIX for Dummies Questions & Answers

Find and cat top lines recursively

I have a folder structure with multiple sub directories MAIN FOLDER1 SUBFOLDER1 files...... FOLDER2 SUBFOLDER1 files...... etc and I want to find a way to create an output of every files first 20 lines. I've been searching and testing and failing. I can do it in a... (2 Replies)
Discussion started by: darbs121
2 Replies

4. UNIX for Dummies Questions & Answers

Cat command drops lines in output file

I use the cat command to concatenate text files, but one of the rows I was expecting doesn't display in the output file. Is there a verbose mode\logging mechanism for the cat command to help me investigate where the lines I was expecting are going?? cat 7760-001_1_*_06_*.txt | grep -v... (1 Reply)
Discussion started by: Xin Xin
1 Replies

5. Shell Programming and Scripting

Remove CR only on empty lines

Dear community, I have two output files that contains some CR # cat first.out 1234567890 598679857648566 9 1234567234 365837465873465 4 2342343243 289374982374894 4 # cat second.out 2342342342 ... (2 Replies)
Discussion started by: Lord Spectre
2 Replies

6. Shell Programming and Scripting

using vi -c to remove empty lines

Hello: I searched here for "vi -c" but found no hits. How can I use vi -c to remove ALL empty lines, regardless of how many? I tried <code> vi -c ":g/^$/d | wq" filename </code> but I have to run it several times. This is NOT homework. :) Thanks for your time. (3 Replies)
Discussion started by: Habitual
3 Replies

7. Shell Programming and Scripting

Cat Command and Blank Lines

Hi All, I was testing for blank lines and I want to use the cat command only for groupline in `cat /home/test/group` do if then echo "blank found" fi done I want to check if the current line read is a blank line. I have tested with $groupline="\n" ,... (11 Replies)
Discussion started by: datkan
11 Replies

8. Shell Programming and Scripting

Removing empty lines(space) between two lines containing strings

Hi, Please provide shell script to Remove empty lines(space) between two lines containing strings in a file. Input File : A1/EXT "BAP_BSC6/07B/00" 844 090602 1605 RXOCF-465 PDTR11 1 SITE ON BATTERY A2/EXT... (3 Replies)
Discussion started by: sudhakaryadav
3 Replies

9. UNIX for Advanced & Expert Users

How to delete empty lines

abc# abc#this is a test abc#this is a test to delete abc# xyz# xyz#this is a test two xyz# In the above example '#' is common. How to do delete the emply lines. In specific to observe the output as: abc#this is a test abc#this is a test to delete xyz#this is a test two . . . . (5 Replies)
Discussion started by: Aejaz
5 Replies

10. Shell Programming and Scripting

display no of empty lines

I want to display the number of empty lines in a file. I guess i should use 'grep'...but how.. 10x for those who'll help. (5 Replies)
Discussion started by: atticus
5 Replies
Login or Register to Ask a Question