05-23-2012
Count number of free lines in a text file
Hi Everybody
I want to write a script to count the number of lines in a file that don't ahve any thing on it, the free lines, i try to do it with fgrep "" which means to grep on the spaces but it does not work.
help me please?
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi Friends
Please help me out to count number of lines in binary file. It gives some wrong(less) using wc -l. Is there any other way to count lines of binary file.
Thanks. (3 Replies)
Discussion started by: vanand420
3 Replies
2. Programming
can someone guide me how to have a C pgm to count the number of commented lines? (3 Replies)
Discussion started by: naan
3 Replies
3. Shell Programming and Scripting
Hi
I want to extract certain text between two line numbers like
23234234324 and
54446655567567
How do I do this with a simple sed or awk command?
Thank you.
---------- Post updated at 06:16 PM ---------- Previous update was at 05:55 PM ----------
found it:
sed -n '#1,#2p'... (1 Reply)
Discussion started by: return_user
1 Replies
4. UNIX for Dummies Questions & Answers
Dear Members,
I want to count the number of lines in a file; for that i am using the following command :
FILE_LINE_COUNT=`wc -l $INT_IN/$RAW_FILE_NAME`
if i do an echo on FILE_LINE_COUNT then i get
241 /home/data/testfile.txt
I don't want the directory path to be displayed. Variable... (1 Reply)
Discussion started by: sandeep_1105
1 Replies
5. Shell Programming and Scripting
I have a file with contents similar to this.
abcd
1234
4567
7666
jdjdjd
89289
9382
92
jksdj
9823
298
I want to write a shell script which count the number of lines that start with the number (disregard the lines starting with alphabets) (1 Reply)
Discussion started by: grajp002
1 Replies
6. Shell Programming and Scripting
Hi Everyone,
1.txt
Mon 08 Feb 2010 12:30:44 AM MYT;1265560244;e164:0000116047275464;T;Central;0;
Mon 08 Feb 2010 12:30:46 AM MYT;1265560246;e164:0000116047275464;T;Central;0;
Mon 08 Feb 2010 12:30:48 AM MYT;1265560248;e164:0000116047275464;T;Central;0;
Mon 08 Feb 2010 12:30:50 AM... (1 Reply)
Discussion started by: jimmy_y
1 Replies
7. UNIX for Dummies Questions & Answers
Hello,
I have 50 text files in a directory called "AllFiles"
I want to make a program that will go inside of the "AllFiles" Directory and count the number of lines in each individual text file. Then, the program will calculate how many more lines there are over 400 in each text file and... (7 Replies)
Discussion started by: motoxeryz125
7 Replies
8. Shell Programming and Scripting
Hi,
I am new to unix. I need to insert a variable which contains some lines of text into a text file after fixed number of lines..
Please help me on this..
Thanks in Advance,
Amrutha (3 Replies)
Discussion started by: amr89
3 Replies
9. UNIX for Advanced & Expert Users
1000CUS E Y4NYRETAIL
10010004HELIOPOLIS
110000500022360591000056XX EG
1101DEBY XXAD ZSSKY TSSROS
1102HANYNNYY@HOTMAIL.COM
210030/05/201301/06/2013AED
3100 OPE
3100 CLO
3100 The
1000CUS E Y NYCORPORATE
10010004HELIOPOLIS
110000500025270504550203XX EG
1101XXXQ FOR CTING AND... (1 Reply)
Discussion started by: john2022
1 Replies
10. Shell Programming and Scripting
Hi,
I've 2 queries.
I need to list files which doesn't contain a particular text in the content. For example say, I need to list files which doesn't contain string "abc" from all files ending with *.bad. How can I do that?
Also, I want to display number of lines in a file which has atleast... (2 Replies)
Discussion started by: Gangadhar Reddy
2 Replies
GREP(1) General Commands Manual GREP(1)
NAME
grep, egrep, fgrep - search a file for a pattern
SYNOPSIS
grep [ option ] ... expression [ file ] ...
egrep [ option ] ... [ expression ] [ file ] ...
fgrep [ option ] ... [ strings ] [ file ]
DESCRIPTION
Commands of the grep family search the input files (standard input default) for lines matching a pattern. Normally, each line found is
copied to the standard output; unless the -h flag is used, the file name is shown if there is more than one input file.
Grep patterns are limited regular expressions in the style of ed(1); it uses a compact nondeterministic algorithm. Egrep patterns are full
regular expressions; it uses a fast deterministic algorithm that sometimes needs exponential space. Fgrep patterns are fixed strings; it
is fast and compact.
The following options are recognized.
-v All lines but those matching are printed.
-c Only a count of matching lines is printed.
-l The names of files with matching lines are listed (once) separated by newlines.
-n Each line is preceded by its line number in the file.
-b Each line is preceded by the block number on which it was found. This is sometimes useful in locating disk block numbers by con-
text.
-s No output is produced, only status.
-h Do not print filename headers with output lines.
-y Lower case letters in the pattern will also match upper case letters in the input (grep only).
-e expression
Same as a simple expression argument, but useful when the expression begins with a -.
-f file
The regular expression (egrep) or string list (fgrep) is taken from the file.
-x (Exact) only lines matched in their entirety are printed (fgrep only).
Care should be taken when using the characters $ * [ ^ | ? ' " ( ) and in the expression as they are also meaningful to the Shell. It is
safest to enclose the entire expression argument in single quotes ' '.
Fgrep searches for lines that contain one of the (newline-separated) strings.
Egrep accepts extended regular expressions. In the following description `character' excludes newline:
A followed by a single character matches that character.
The character ^ ($) matches the beginning (end) of a line.
A . matches any character.
A single character not otherwise endowed with special meaning matches that character.
A string enclosed in brackets [] matches any single character from the string. Ranges of ASCII character codes may be abbreviated
as in `a-z0-9'. A ] may occur only as the first character of the string. A literal - must be placed where it can't be mistaken as
a range indicator.
A regular expression followed by * (+, ?) matches a sequence of 0 or more (1 or more, 0 or 1) matches of the regular expression.
Two regular expressions concatenated match a match of the first followed by a match of the second.
Two regular expressions separated by | or newline match either a match for the first or a match for the second.
A regular expression enclosed in parentheses matches a match for the regular expression.
The order of precedence of operators at the same parenthesis level is [] then *+? then concatenation then | and newline.
SEE ALSO
ed(1), sed(1), sh(1)
DIAGNOSTICS
Exit status is 0 if any matches are found, 1 if none, 2 for syntax errors or inaccessible files.
BUGS
Ideally there should be only one grep, but we don't know a single algorithm that spans a wide enough range of space-time tradeoffs.
Lines are limited to 256 characters; longer lines are truncated.
GREP(1)