return all non-blank lines in a file(linux)

[Stan]

hi,

Could any one give me an advice of providing a regular expression that
will return all non-blank lines in a file in linux.
Maybe it is just a command!

Thanks

Stan

 

[Jack Klein]

hi,

Could any one give me an advice of providing a regular expression that
will return all non-blank lines in a file in linux.
Maybe it is just a command!

Thanks

Stan

Is this a question about programming in C? If not, you need a Linux
group.

Even if you want to write a C program to do this, your problem
statement is not detailed enough. What is your definition of a "blank
line"?

 

[E. Robert Tisdale]

Could any one give me an advice
of providing a regular expression
that will return all non-blank lines in a file in linux.
Maybe it is just a command!

1. To remove lines that begin with a newline character, try:

grep -v '^$' filename

2. Heed Jack Klein's advice and ask in a Linux newsgroup.

 

[Mark Shelor]

Could any one give me an advice of providing a regular expression that
will return all non-blank lines in a file in linux.
Maybe it is just a command!

$ grep -v ^$ filename

 

[Jeremy Yallop]

Could any one give me an advice of providing a regular expression that
will return all non-blank lines in a file in linux.

..

 

[Mark McIntyre]

$ grep -v ^$ filename

this doesn't compile. Nor is grep mentioned in the Standard.

IOW, don't answer offtopic posts here. If you are going to answer
offtopic posts, do it privately, and at the same time redirect the OP
to a more sensible place. You've been told this before, whats so hard
about it?