or, if you would like to stick to a even more limited version of grep:
I seem to be in one of two modes; if I have to initiate an interpreter I try and do everything in it; if I can get away with only using "simple" utilities I do.
Hey guys, I have a file that I've slowly been awking, seding, and greping for data entry. I am down to pull the addresses out to insert them into an excel file. Each address is a few lines, but i want to put a semicolon delimiter in between each address so I can export the text file into excel and... (6 Replies)
Hi guys,
I have tried to find a solution for this problem but couln't. If anyone of you have an Idea do help me.
INPUT_FILE
with three columns shown to be separated by - sign
A5BNK723NVI - 1 - 294
A7QZM0VIT - 251 - 537
A7NU3411V - 245 - 527
I want an output file in which First column... (2 Replies)
I hope this is a basic question.
I have a file with a bunch of strings in each line (and the string number is variable).
What I want to do is a simple if command and then print the entire line.
something like awk '{if ($3=="yes") print $1,$2,$3,...$X }' infile > outfile
Can someone... (1 Reply)
Friends,
I have .txt file with 3 millions of rows.
File1.txt
ABC1|A|ABCD1|XYZ1
ABC2|P|ABCD2|XYZ2
ABC3|A|ABCD3|XYZ3
ABC4|P|ABCD4|XYZ4
If second field has value P then print the entire line.
Thanks in advance for your help,
Prashant (4 Replies)
Friends,
File1.txt
abc|0|xyz
123|129|opq
def|0|678
890|pqw|sdf
How do I print the entire line where second column has value is 0?
Expected Result:
abc|0|xyz
def|0|678
Thanks,
Prashant
---------- Post updated at 02:14 PM ---------- Previous update was at 02:06 PM ----------
... (1 Reply)
Hi,
I have a file whose lines are something like
Tchampionspsq^@~^@^^^A^@^@^@^A^A^Aÿð^@^@^@^@^@^@^@^@^@^@^A^@^@^@^@^?ð^@^@^@^@^@^@^@?ð^@^@^@^@^@^@pppsq^@~^@#@^@^@^@^@^@^Hw^H^@^@^@^K^@^@^@^@xp^At^@^FTtime2psq^@ ~^@^^^A^@^@^@^B^A
I need to extract all words matching T*psq from the file.
Thing is... (4 Replies)
Good day,
I have a list of regular expressions in file1. For each match in file2, print the containing line and the line after.
file1:
file2:
Output:
I can match a regex and print the line and line after
awk '{lines = $0} /Macrosiphum_rosae/ {print lines ; print lines } '
... (1 Reply)
I would like to add two additional conditions to the actual code I have: print '+' if in File2 field 5 is greater than 35 and also field 7 is grater than 90.
while read -r line
do
grep -q "$line" File2.txt && echo "$line +" || echo "$line -"
done < File1.txt '
Input file 1:
... (5 Replies)
I have a file and when I match the word "initiators" in the first column I need to be able to print the rest of the columns in that row. This is fine for the most part but on occasion the "initiators" line gets wrapped to the next line. Here is a sample of the file.
caw-enabled ... (3 Replies)
I have one requirement to delete all lines from a file if it matches below scenario. File contains three column. Employee Number, Employee Name and Employee ID
Scenario is: delete all line if Employee Number (1st column) contains below
1. Non-numeric Employee Number
2. Employee Number that... (3 Replies)
Discussion started by: anshu ranjan
3 Replies
LEARN ABOUT BSD
grep
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. Grep patterns are limited regular expressions in the style of ex(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.
-x (Exact) only lines matched in their entirety are printed (fgrep only).
-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 relative 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.
-i The case of letters is ignored in making comparisons -- that is, upper and lower case are considered identical. This applies to
grep and fgrep only.
-s Silent mode. Nothing is printed (except error messages). This is useful for checking the error status.
-w The expression is searched for as a word (as if surrounded by `<' and `>', see ex(1).) (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.
In all cases the file name is shown if there is more than one input file. 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 other than newline matches that character.
The character ^ matches the beginning of a line.
The character $ matches the end of a line.
A . (period) 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 an * (asterisk) matches a sequence of 0 or more matches of the regular expression. A regular
expression followed by a + (plus) matches a sequence of 1 or more matches of the regular expression. A regular expression followed
by a ? (question mark) matches a sequence of 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.
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.
SEE ALSO ex(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
Lines are limited to 256 characters; longer lines are truncated.
4th Berkeley Distribution April 29, 1985 GREP(1)