... why it only works with egrep and not the normal grep
...
That's because of that pesky "+" character, which means "one or more occurrence" and is an extended regex and hence supported by egrep (extended grep). Check the man page for egrep in your system.
having a look on the regex site I saw that characters can be search using hex values
http://www.regular-expressions.info/characters.html
So I try to use it whith grep to find a è on a string (octal Decimal Hexa : 350 232 E8) but it doesn't work
E.g.
/usr/bin/echo '\0350' | egrep '\xE8'
... (0 Replies)
Hi,
I am trying to do something with grep, but for some reason I just can't get it to to work.
I am looking for find a match in the second field, the length must be 10 characters and end with 'abc'.
The file is in this format:
<int><tab><field2>
I've tried a few patterns, some work,... (2 Replies)
Hello everybody,
I'd like to know how is it I should write a regex in unix to match a string not followed by another string (anywhere in the line).
To be more specific, I want to find lines where "drop table" is found, but not followed anywhere in the line by the character "&".
For... (3 Replies)
Hi all,
I'm a beginner with linux, regex, grep, etc
I am trying to get data out of a file that has about 13,000 lines in this format
name - location
I want to grep all the names out to one file and the locations to another so I can put them into a spreadsheet.
Some have hyphenated... (14 Replies)
basically i have a csv i parse through. a user will supply me with a san switch he/she wants more info about... say the name is "pnj-sansw124"
now i can grep out every connection to that switch w/o issue because this sans switch pnj-sansw124 has multiple slots 1-10. and it looks like this in the... (5 Replies)
Hello,
I'm working on unix with grep (GNU grep) 2.5.1. I'm going through some of the newer regex syntax using Regular Expression Reference - Advanced Syntax a guide.
ls -aLl /bin | grep "\(x\)"
Which works, just highlights 'x' where ever, when ever.
I'm trying to to get (?:) to work but... (4 Replies)
Hi to you all,
I'm just struggling with a regex problem and I'm pretty sure that I'm missing sth obvious... :confused:
I need a regex to feed my grep in order to find lines that contain one string but not the other.
Here's the data example:
2015-04-08 19:04:55,926|xxxxxxxxxx| ... (11 Replies)
Hello guys,
Here i am writing a script in bash to check for a valid URL from a file using regex
This is my input file
http://www.yahoo.commmmmm
http://www.google.com
https://www.gooogle.co
www.test6.co.in
www.gmail.com
www.google.co
htt://www.money.com
http://eeeess.google.com... (2 Replies)
Hi everyone,
I'm looking for a grep command to match the following pattern from a file:
<EGS>10234567<EGS>
I used this following command to do this:
grep -E '^<EGS>{8}<EGS>' test.txt
In output I got:
<EGS>10234567<EGS>
Till now it work, but if I add something at the end of the line... (2 Replies)
Discussion started by: Arnaudh78
2 Replies
LEARN ABOUT MINIX
roff
is a text formatter. Its input consists of the text to be out-
put, intermixed with formatting commands. A formatting commandis a line containing the control character followed by a twocharacter command name, and possibly one or more arguments. Thecontrol character is initially . (dot). The formatted output isproduced on standard output. The formatting commands are listedbelow, with being a number, being a character, and being a title.A + before n means it may be signed, indicating a positive ornegative change from the current value. Initial values for whererelevant, are given in parentheses.
.ad Adjust right margin.
.ar Arabic page numbers.
.br Line break. Subsequent text will begin on a new line.
.bl n Insert n blank lines.
.bp +n Begin new page and number it n. No n means +1.
.cc c Control character is set to c.
.ce n Center the next n input lines.
.de zz Define a macro called zz. A line with .. ends definition.
.ds Double space the output. Same as .ls 2.
.ef t Even page footer title is set to t.
.eh t Even page header title is set to t.
.fi Begin filling output lines as full as possible.
.fo t Footer titles (even and odd) are set to t.
.hc c The character c (e.g., %) tells roff where hyphens are permitted.
.he t Header titles (even and odd) are set to t.
.hx Header titles are suppressed.
.hy n Hyphenation is done if n is 1, suppressed if it is 0. Default is 1.
.ig Ignore input lines until a line beginning with .. is found.
.in n Indent n spaces from the left margin; force line break.
.ix n Same as .in but continue filling output on current line.
.li n Literal text on next n lines. Copy to output unmodified.
.ll +n Line length (including indent) is set to n (65).
.ls +n Line spacing: n (1) is 1 for single spacing, 2 for double, etc.
.m1 n Insert n (2) blank lines between top of page and header.
.m2 n Insert n (2) blank lines between header and start of text.
.m3 n Insert n (1) blank lines between end of text and footer.
.m4 n Insert n (3) blank lines between footer and end of page.
.na No adjustment of the right margin.
.ne n Need n lines. If fewer are left, go to next page.
.nn +n The next n output lines are not numbered.
.n1 Number output lines in left margin starting at 1.
.n2 n Number output lines starting at n. If 0, stop numbering.
.ni +n Indent line numbers by n (0) spaces.
.nf No more filling of lines.
.nx f Switch input to file f.
.of t Odd page footer title is set to t.
.oh t Odd page header title is set to t.
.pa +n Page adjust by n (1). Same as .bp
.pl +n Paper length is n (66) lines.
.po +n Page offset. Each line is started with n (0) spaces.
.ro Page numbers are printed in Roman numerals.
.sk n Skip n pages (i.e., make them blank), starting with next one.
.sp n Insert n blank lines, except at top of page.
.ss Single spacing. Equivalent to .ls 1.
.ta Set tab stops, e.g., .ta 9 17 25 33 41 49 57 65 73 (default).
.tc c Tabs are expanded into c. Default is space.
.ti n Indent next line n spaces; then go back to previous indent.
.tr ab Translate a into b on output.
.ul n Underline the letters and numbers in the next n lines.