1
vote
1answer
17 views

Using sed to align text starting from pattern to end of line

I have a text like this: LDX LEVEL LDA INITD015,X ; INITIAL ACTIVE SPRITES STA $D015 STA SAVED015 LDA INITXPOS,X ; INITIAL HERO X COORDINATE STA XPOS LDA ...
1
vote
2answers
40 views

Extracting file name and string from multiple files

I have a lot of files (>100,000) from which I would like to extract a specific string and the filename itself. Files are organized like this: Filename: sequence.php?ID=gi|90022703|ref|YP_528530.1| ...
2
votes
2answers
58 views

Format output to a specific line length

So I have some output that has very long lines, and I want to have it formatted to lines no more than 80 columns wide, but I don't want to split words because they are in the column limit. I tried ...
1
vote
1answer
42 views

How to echo from specific line of a file to another specific line [duplicate]

Assume I have a file with about 10000 lines. How can I print 100 lines, starting from line 1200 to line 1300?
4
votes
5answers
1k views

extract fields from “tail -f” of a syslog stream

Example line from syslog file: Aug 1 10:25:50 10.10.10.1 id=firewall sn=XXXX time="2012-08-01 14:35:18 UTC" fw=x.x.x.x pri=6 c=1024 m=537 msg="Connection Closed" f=11 n=195273698 ...
4
votes
3answers
545 views

How to skip file in sed if it contains regex?

I currently use the following simplified command to remove trailing whitespace and add a newline at end of file where needed: find . -type f -exec sed -i -e 's/[ \t]\+\(\r\?\)$/\1/;$a\' {} \+ As ...
2
votes
3answers
3k views

What is the purpose of -e in sed command?

I can't find any documentation about the sed -e switch, for simple replace, do I need it? e.g. sed 's/foo/bar/' VS sed -e 's/foo/bar/'