Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

need help

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting need help
# 1  
Old 03-27-2008
need help
Dear all

There is a file called f1, having contents

1
2
3
4
.
.
.
0

Before 0, I don't know how many lines are there. I need to remove last line and save the output to file name called f2
# 2  
Old 03-27-2008
Code:
sed '$d'

Applying it left as an exercise, as this is doubtlessly an assignment.
# 3  
Old 03-27-2008
for large files, use head
Code:
# head -n -1 file

# 4  
Old 03-27-2008
That's neat, but not very portable. Is that a GNUism or a POSIXism?
Login or Register to Ask a Question

Previous Thread | Next Thread
Login or Register to Ask a Question