Hello,
I am currently trying to edit an ldif file. The ldif specification states that a newline followed by a space indicates the subsequent line is a continuation of the line. So, in order to search and replace properly and edit the file, I open the file in textwrangler, search for "\r " and... (14 Replies)
I know uniq exists, but am not sure how to remove repeating lines when they are groups of two different lines repeating themselves, without using sort. I need them to be sorted in the original order, just to remove repeats.
cd /media/AUDIO/WAVE/9780743518673/mp3
~/Desktop/mp3-to-m4b... (1 Reply)
Hi Guys,
First post! I've seen a few options but dont know the most efficient:
I have a directory with a 150,000+ text files in it
I want to merge them into files contain 10,000 files with a carriage return in between.
Thanks
P
The following is an example but doesnt limit the... (2 Replies)
Hello,
I'm working with a file that has three columns. The first one represents a certain channel and the third one a timestamp (second one is not important). Example input is as follows:
2513 12 10.771
2513 13 10.771
2513 14 10.771
2513 15 10.771
2644 8 10.771
... (6 Replies)
G'day all,
I'm have tons of image files I need to process, but I don't need to process all of them and it would take a long time to process them all if I don't have to.
The images are arranged in folders like this...
folder1/RawData
folder2/RawData
folder3/RawData
...
folderN/RawData
... (2 Replies)
I have two files.
File 1 is a two-column index file, e.g.
comp11084_c0_seq6:130-468(-) comp12746_c0_seq3:140-478(+)
comp11084_c0_seq3:201-539(-) comp12746_c0_seq2:191-529(+)
File 2 is a sequence file with headers named with the same terms that populate file 1. ... (1 Reply)
Hello to all,
I'm trying to print the value corresponding to the words A, B, C, D, E. These words could appear sometimes and sometimes not inside each group of lines. Each group of lines begins with "ZYX".
My issue with current code is that should print values for 3 groups and only is... (6 Replies)
Hi, I have some data I have taken from the internet in the following scheme:
name
direction
webpage
phone number
open hours
menu url
book url
name
...
Of course the only line that is mandatory is the name wich is the one I want to sort by.
I have the following sed & awk script that... (3 Replies)
Discussion started by: devmsv
3 Replies
LEARN ABOUT DEBIAN
plan9-grep
GREP(1) General Commands Manual GREP(1)NAME
grep, g - search a file for a pattern
SYNOPSIS
grep [ option ... ] pattern [ file ... ]
g [ option ... ] pattern [ file ... ]
DESCRIPTION
Grep searches the input files (standard input default) for lines that match the pattern, a regular expression as defined in regexp(7) with
the addition of a newline character as an alternative (substitute for |) with lowest precedence. Normally, each line matching the pattern
is `selected', and each selected line is copied to the standard output. The options are
-c Print only a count of matching lines.
-h Do not print file name tags (headers) with output lines.
-e The following argument is taken as a pattern. This option makes it easy to specify patterns that might confuse argument parsing,
such as -n.
-i Ignore alphabetic case distinctions. The implementation folds into lower case all letters in the pattern and input before interpre-
tation. Matched lines are printed in their original form.
-l (ell) Print the names of files with selected lines; don't print the lines.
-L Print the names of files with no selected lines; the converse of -l.
-n Mark each printed line with its line number counted in its file.
-s Produce no output, but return status.
-v Reverse: print lines that do not match the pattern.
-f The pattern argument is the name of a file containing regular expressions one per line.
-b Don't buffer the output: write each output line as soon as it is discovered.
Output lines are tagged by file name when there is more than one input file. (To force this tagging, include /dev/null as a file name
argument.)
Care should be taken when using the shell metacharacters $*[^|()= and newline in pattern; it is safest to enclose the entire expression in
single quotes '...'. An expression starting with '*' will treat the rest of the expression as literal characters.
G invokes grep with -n and forces tagging of output lines by file name. If no files are listed, it searches all files matching
*.C *.b *.c *.h *.m *.cc *.java *.cgi *.pl *.py *.tex *.ms
SOURCE
/src/cmd/grep
/bin/g
SEE ALSO ed(1), awk(1), sed(1), sam(1), regexp(7)DIAGNOSTICS
Exit status is null if any lines are selected, or non-null when no lines are selected or an error occurs.
GREP(1)