01-21-2008
This would never be possible to read the contents without opening the file.
Be it any file reading utility like sed, awk, vi internally fopen is executed.
Did you mean not opening the file in an editor ?
10 More Discussions You Might Find Interesting
1. Programming
Hi, experts,
I would like to create a function that can calculate the total number of lines in a saved text file and delete specific lines in that particular file (I only want the last few lines). Hav anybody have the experience and giv me a hand in this? (9 Replies)
Discussion started by: dniz
9 Replies
2. Shell Programming and Scripting
hello all
I have bunch of files containing lines of text that surrounding by <# .......#> tags
I like to delete this lines from the text files whiteout open the files , can it be done with sed ?
or other unix tool (perl mybe )? (2 Replies)
Discussion started by: umen
2 Replies
3. Shell Programming and Scripting
Hello,
Hello Firends,
I have file like below. I want to remove selected blocks say abc,pqr,lst. how can i remove those blocks from file.
zone abc {
blah
blah
blah }
zone xyz {
blah
blah
blah }
zone pqr {
blah
blah
blah } (4 Replies)
Discussion started by: nrbhole
4 Replies
4. UNIX for Dummies Questions & Answers
Hi everybody!
I need to delete several vertical lines in a huge text file.
It should work like the example below. Delete the vertical lines 2 and 8.
123456789
masldfjla
afsajfwel
sajfljsaf
safsarfrl
sajfeljwq
1345679
msldfja
asajfwl
sjfljsf
sfsarfl
sjfeljq
Is there a... (11 Replies)
Discussion started by: relaxo
11 Replies
5. Shell Programming and Scripting
it will grep for a line and then delete these line. how do i begin to write this script if theres no available one? (3 Replies)
Discussion started by: garfish
3 Replies
6. Shell Programming and Scripting
Hello,
I have a group of text files with many lines in each file.
I need to delete all the lines in each and only leave 2 lines in each file. (3 Replies)
Discussion started by: script_op2a
3 Replies
7. Shell Programming and Scripting
hi guys,
I have very large txt files (200GB) and just want to to delete the first two lines (headers). So far I used
sed -i '1,2d' infile.txtbut this command always takes extremely long as it writes all again. Is there a better way to do it (ie just to delete the lines without writing all... (2 Replies)
Discussion started by: TuAd
2 Replies
8. Shell Programming and Scripting
hey guys,
I tried searching but most 'search and replace' questions are related to one liners.
Say I have a file to be replaced that has the following:
$ cat testing.txt
TESTING
AAA
BBB
CCC
DDD
EEE
FFF
GGG
HHH
ENDTESTING
This is the input file: (3 Replies)
Discussion started by: DeuceLee
3 Replies
9. Shell Programming and Scripting
Hello,
I'm trying to figure out how to use sed or awk to delete single lines in a file. By single, I mean lines that are not touching any other lines (just one line with white space above and below).
Example:
one
two
three
four
five
six
seven
eight
I want it to look like: (6 Replies)
Discussion started by: slimjbe
6 Replies
10. Shell Programming and Scripting
I'm trying to remove a specific number of lines, above and below a specific line of text, highlighted in red:
<STMTTRN>
<TRNTYPE>CREDIT
<DTPOSTED>20151205000001
<TRNAMT>10
<FITID>667800001
<CHECKNUM>667800001
<MEMO>BALANCE
</STMTTRN>
<STMTTRN>
<TRNTYPE>DEBIT
<DTPOSTED>20151207000001... (8 Replies)
Discussion started by: bomsom
8 Replies