This is because you are passing an RE via a string, the string is parsed first and one level of escape characters are stripped. Then the result is processed by the RE parser and another level of escape characters are removed.
Imagine looking for a double quote character - these are not special to the RE so don't need to be escaped there and you could do:
But as [ means something to the RE parser it must arrive there escaped - i.e. double escaped in the string (or single as an RE):
Last edited by Chubler_XL; 08-08-2016 at 09:42 PM..
Reason: Reworded to help clarify - English is so vague
These 3 Users Gave Thanks to Chubler_XL For This Post:
Hi,
I am looking for a simple command to select text within a open bracket "("
and a matching close bracket ")" and output the within-bracket-text to a file.
This function is similar to the common vi select a range of text with "(" to ")"
but not sure how to run the same function in command... (4 Replies)
The data we are searching is populated in this way:
----IP---------DAY----MONTH----DATE--------TIME---------YEAR
12.3234.34-----Fri------Nov-------15-------18:05:14 GMT---2008
I want the user to be able to search for the data according to month and year.
However, I cannot quite figure out... (8 Replies)
Hello,
I want to get the User Name details of a user from a file list.
This list can be in the format:
FirstName_MiddleName1_LastName_ID
FirstName_LastName_ID
FirstName_MiddleName1_MiddleName2_LastName_ID
What i want it to return is FirstName_MiddleName1_LastName of a user.
I... (6 Replies)
Can somebody tell me the difference between double brackets and single
brackets, when doing a test.
I have always been acustomed to using single brackets and have not
encountered any issues to date. Why would somebody use double brackets.
Ie
if ]
vs
if
Thanks to... (2 Replies)
Hi guys,
I need to use awk to join 2 files
file_1
A 001
B 002
C 003
file_2
A XX1
B XX2
output desired
A 001 XX1
B 002 missing
C 003 XX2
thank you! (2 Replies)
Hi guys,
I need AWK to merge the following 2 files:
file1
1 a 1 1
2 b 2 2
3 c 3 3
4 d 4 4
file2
a a/a c/c a/c c/c a/a c/t
c c/t c/c a/t g/g c/c c/t
desired output:
1 a 1 1 a/a c/c a/c c/c a/a c/t
2 b 2 2 x x x x x x
3 c 3 3 c/t c/c a/t g/g c/c c/t
4 d 4 4 x x x x x x (2 Replies)
Hello All,
I have this script to awk IP to new file.
#awk '/myip|yourip/ {sub(/...\....\....\..../, newip)}1' newip=$IP existing.txt > new.txt
When existing.txt has myip=192.168.123.123 and $IP has 192.168.12.12, the awk script is not working. But while I add zero left padding to $IP i.e,... (3 Replies)
Hi Experts,
A quick question.
- How to put a 2nd bracket in the last character of the input string.
a=blah or a=1234 or a=anything
Desired output to be :
bla or 123 or anythin
What I have tried is not working:
echo $a| sed 's/$//'
blah
Thanks a lot. (3 Replies)
I am developing a database for translating names. I have mapped through a rule engine syllables in English to syllables in Indic, delimited by an equal to sign.
An example will illustrate this
ra m=रा म
ku ma r=कु मा र
mo=मो
la l=ला ल
gi ta=गी ता
ka la va ti=कa ला वa ती
However it so... (3 Replies)
Discussion started by: gimley
3 Replies
LEARN ABOUT DEBIAN
igawk
IGAWK(1) Utility Commands IGAWK(1)NAME
igawk - gawk with include files
SYNOPSIS
igawk [ all gawk options ] -f program-file [ -- ] file ...
igawk [ all gawk options ] [ -- ] program-text file ...
DESCRIPTION
Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1).
AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like
@include getopt.awk
in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path.
OPTIONS
See gawk(1) for a full description of the AWK language and the options that gawk supports.
EXAMPLES
cat << EOF > test.awk
@include getopt.awk
BEGIN {
while (getopt(ARGC, ARGV, "am:q") != -1)
...
}
EOF
igawk -f test.awk
SEE ALSO gawk(1)
Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995.
AUTHOR
Arnold Robbins (arnold@skeeve.com).
Free Software Foundation Nov 3 1999 IGAWK(1)