CODEWITHSUNDEEP
regexperlbashsedgrep
fog1985
fog1985

Reputation: 155

Need help in converting perl RegExp query to sed one

I have written perl script for parsing input text/file as follow:

[root@agent tmp]# head ./test_regqexp_keynote.txt
[email protected]       (Top20) Carnation GB/fd (Crit)  9:57    11 KB
[email protected]       (Shell Brand EUR) HealthScience NL/fd (Crit)    9:36
11 KB
[email protected]       (Shell Corp AMS) Nestle JP/fd (Crit)    9:16    11 KB
[email protected]       (Top20) NestleHealth DE/fd (Crit)       9:01    11 KB
[email protected]       (Shell Corp AMS) Nestle NZ/fd (Crit)    8:17    12 KB
[email protected]       (Shell Brand EUR) HealthScience CH/fd (Crit)    8:11
11 KB
[email protected]       (Shell Corp AMS) Nestle CL/fd (Crit)    8:11    11 KB
[email protected]       (Shell Corp AMS) Nestle VE/fd (Crit)    8:11    11 KB

and getting text as follow on output:

HealthScience FI/fd
DolceGusto NZ/fd
Waters WW/fd
Nestle UA/fd
Nestle SK/fd
Nestle SI/fd

perl -ne 'if ($_=~ m/([a-zA-Z]* [A-Z]{2,3}\/fd)/) {print "$1\n";}'

So just extract of part "XXXX XX/fd".

But I need it to be done using SED tool.

And it made me crazy. Seems that SED works in totally different way or has very different rules of RegEx.

Please help me to convert this RegExp query to SED RegExp query. Or explain what is mainly different in Sed RegExp from Perl or Egrep RegExp.

Upvotes: 0

Views: 84

Answers (3)

Jotne
Jotne

Reputation: 41456

Instead of complicated regex, you can try this awk

awk -F"[)] | [(]" 'NF>3{print $3}' file
Carnation GB/fd
HealthScience NL/fd
Nestle JP/fd
NestleHealth DE/fd
Nestle NZ/fd
HealthScience CH/fd
Nestle CL/fd
Nestle VE/fd

Upvotes: 0

fin
fin

Reputation: 333

sed -n 's#.* \([a-zA-Z]* [A-Z]\{2,3\}/fd\).*#\1#p' test_regqexp_keynote.txt

Or:

egrep -o '[a-zA-Z]* [A-Z]{2,3}/fd' test_regqexp_keynote.txt

Upvotes: 0

perreal
perreal

Reputation: 97948

Here is one way:

sed -n 's!.* \([a-zA-Z]* [A-Z]\{2,3\}/fd\).*!\1!p' input

and perhaps this may work too:

sed -n 's!.* \([^ ]* [^ ]*/fd\).*!\1!p' input

Upvotes: 1

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