Unable to grep control/non printable characters Post: 302594829

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Best way to search files for non-printable characters?

I need to check ftp'd incoming files for characters that are not alphanumeric,<tab>, <cr>, or <lf> characters. Each file would have 10-20,000 line with up to 3,000 characters per line. Should I use awk, sed, or grep and what would the command look like to do such a search? Thanks much to anyone...

2. Shell Programming and Scripting

grep non printable characters

Sometimes obvious things... are not so obvious. I always thought that it was possible to grep non printable characters but not with my GNU grep (5.2.1) version. printf "Hello\tWorld" | grep -l '\t' printf "Hello\tWorld" | grep -l '\x09' printf "Hello\tWorld" | grep -l '\x{09}' None of them...

3. UNIX for Dummies Questions & Answers

delete non printable characters from file

i have a file which contains non printable characters like enter,escape etc i want to delete them from the file

4. HP-UX

Non-printable characters

I have been using OKI data Microline printers; models 590 and 591 to print a bar code using the following escape sequence: \E^PA^H^C00^D^C^A^A^A\E^PB^H The escape sequence is stored in a unix file which is edited using vi. Now, we are considering Microline printer model 395C and the bar code...

5. Shell Programming and Scripting

Removing Non-printable characters in unix file

Hi, We have a non printable character "�" in our file , we want to remove this character, we tried tr -dc '' < oldfile> newfile but this command is removing all new line entries along with the non printable character and all the records are coming in one line(it is changing the format of the...

6. UNIX for Dummies Questions & Answers

removing non printable characters

Hi, in a file, i have records as below: 123|62|absnb|267629 123|267|28728|uiuip 123|567|26761|2676 i want to remove the non printable characters after the end of each record. I guess there are certain charcters but not visible. i don't know what character that is exactly. I used...

7. Shell Programming and Scripting

sed replacing specific characters and control characters by escaping

sed -e "s// /g" old.txt > new.txt While I do know some control characters need to be escaped, can normal characters also be escaped and still work the same way? Basically I do not know all control characters that have a special meaning, for example, ?, ., % have a meaning and have to be escaped...

8. Shell Programming and Scripting

Control Characters

Hallo Team, I am trying to get rid of the dollar sign. I managed to remove all the other special characters but i am struggling with this one. -bash-3.2$ cat -e missing_revenue_20141112.csv|less|head BW0522168531211141180935668@196.23.110.141$ BW092218784121114-370120610@196.23.110.141$...

9. Shell Programming and Scripting

ksh check for non printable characters in a string

Hi All, I am trying to find non-printable characters in a string. The sting could have alphanumeric, puntuations and characters like (*&%$#.') but not non-printable (or that is what I think they are called) which are introduced when you copy any text from DOS to unix box. Input string1:...

10. Shell Programming and Scripting

Redirecting records with non-printable characters

Hi, I have a huge file (50 Mil rows) which has certain non-printable ASCII characters in it. I am cleaning the file by deleting those characters using the following command - tr -cd '\11\12\15\40-\176' < unclean_file > clean_file Please note that I am excluding the following - tab,...

LEARN ABOUT DEBIAN

tcutest

TCUTEST(1)							   Tokyo Cabinet							TCUTEST(1)

NAME

       tcutest - test cases of the utility API

DESCRIPTION

       The command `tcutest' is a utility for facility test and performance test.  This command is used in the following format.  `rnum' specifies
       the number of iterations.  `anum' specifies the initial number of elements of array.  `bnum' specifies the number of buckets.

	      tcutest xstr rnum
		     Perform test of extensible string.
	      tcutest list [-rd] rnum [anum]
		     Perform test of array list.
	      tcutest map [-rd] [-tr] [-rnd] [-dk|-dc|-dai|-dad|-dpr] rnum [bnum]
		     Perform test of hash map.
	      tcutest tree [-rd] [-tr] [-rnd] [-dk|-dc|-dai|-dad|-dpr] rnum
		     Perform test of ordered tree.
	      tcutest mdb [-rd] [-tr] [-rnd] [-dk|-dc|-dai|-dad|-dpr] rnum [bnum]
		     Perform test of on-memory hash database.
	      tcutest ndb [-rd] [-tr] [-rnd] [-dk|-dc|-dai|-dad|-dpr] rnum
		     Perform test of on-memory tree database.
	      tcutest misc rnum
		     Perform test of miscellaneous routines.
	      tcutest wicked rnum
		     Perform updating operations of list and map selected at random.

       Options feature the following.

	      -rd : perform the reading test also.
	      -tr : perform the iterator test also.
	      -rnd : select keys at random.
	      -dk : use the function `tcxxxputkeep' instead of `tcxxxput'.
	      -dc : use the function `tcxxxputcat' instead of `tcxxxput'.
	      -dai : use the function `tcxxxaddint' instead of `tcxxxput'.
	      -dad : use the function `tcxxxadddouble' instead of `tcxxxput'.
	      -dpr : use the function `tcxxxputproc' instead of `tcxxxput'.

       This command returns 0 on success, another on failure.

SEE ALSO

       tcumttest(1), tcucodec(1), tcutil(3), tokyocabinet(3)

Man Page							    2011-02-12								TCUTEST(1)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Best way to search files for non-printable characters?

Discussion started by: jvander

2. Shell Programming and Scripting

grep non printable characters

Discussion started by: ripat

3. UNIX for Dummies Questions & Answers

delete non printable characters from file

Discussion started by: alokjyotibal

4. HP-UX

Non-printable characters

Discussion started by: Joy Conner