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How do I insert a line in the middle of a file in BASH?


 
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# 1  
Old 10-08-2008
How do I insert a line in the middle of a file in BASH?

I have tried

sed '/6/a text_to_inserted' file > newfile

but this inserts test_to_insert at random places in file and i want it in specific location, which is line 6.


can anyone help....
# 2  
Old 10-08-2008
This solution will insert the new line between 5th and 6th line.
Code:
sed '6i\
This is the new line
' file

# 3  
Old 10-08-2008
/usr/bin/ex - "$targfile" << _EOF_ 1>/dev/null 2>&1
${linenum_below}i
$source
.
wq!
_EOF_
if [[ $? -ne 0 ]]; then
# add error log here
fi
a2156z
# 4  
Old 10-09-2008
Quote:
Originally Posted by phenom
I have tried

sed '/6/a text_to_inserted' file > newfile

but this inserts test_to_insert at random places in file and i want it in specific location, which is line 6.

/6/ is a regular expression which matches the digit, 6. If you want line 6, leave out the slashes.

Code:
sed '6a\
text_to_insert
'

# 5  
Old 10-09-2008
I have a $(whoami) in the line to be inserted and

sed '6a\
text_to_insert
'

is not recognizing it. it inserts $(whoami) instead of the username
any ideas??
# 6  
Old 10-09-2008

Substitution and expansion is not performed within single quotes.
# 7  
Old 10-09-2008
Quote:
Originally Posted by cfajohnson

Substitution and expansion is not performed within single quotes.
thanks johnson, much appreciate it

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