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I have a question about removing invisible characters which can be only be seen when we try to view the file using "vi" command. We have a file that's being generated by Datastage Application (Source is a DB2 Table -> Target is a .txt File). File has data with different data types. I'm having an issue with just 3 columns which have their datatypes defined as CHAR.
If you open the file in a Textpad you'd see spaces. But when you view the same file on Unix via vi command, we see ^@ characters in blue color. My file is a delimiter file with the delimiter as ^@^ (I know it's kinda sounds weird) .
I have tried:
tr -d [:cntrl:] <Filename >NewFileName — Still no luck — [Delimiters are removed but the spaces remain]tr -s "^@" <Filename >NewFilename — Still no luck — I see file reduce in file size but the invisible characters still stay.sed "s/^@/g/" (and other sed commands) <Filename — still no luck.Any suggestions are really appreciated. I have researched the posts on this website but I couldn't find one. If it's a simple please excuse me and share your thoughts.
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asked Aug 06 '15 02:08
Press Backspace one or more times to delete the characters in front of the cursor.
How do I match and remove (delete) the words “ssh_args=-p 1222” from config file using sed command under Linux or Unix like operating systems? You can use the the substitute sed command changes all occurrences of the “ssh_args=-p 1222”. The same command can be used to delete the required words.
1. To remove a specific character, say 'a' $ sed 's/a//' file Linux Solris Ubuntu Fedor RedHt This will remove the first... 2. To remove 1st character in every line: $ sed 's/^.//' file inux olaris buntu edora edHat . (dot) tries to match a... 3. To remove last character of every line : $ sed ...
The first tr deletes special characters. d means delete, c means complement (invert the character set). So, -dc means delete all characters except those specified. The n and r are included to preserve linux or windows style newlines, which I assume you want. How do I remove special characters from a CSV file in Unix?
This sed command finds the pattern and replaces with another pattern. When the replace is left empty, the pattern/element found gets deleted. 1. To remove a specific character, say 'a' This will remove the first occurence of 'a' in every line of the file.
How do I remove special characters from a CSV file in Unix? iconv (internationalization conversion) Here is a solution using iconv: iconv -c -f utf-8 -t ascii input_file.csv. … tr (translate) Here is a solution using the tr (translate) command: cat input_file.csv | tr -cd ‘
In vi, NUL characters are represented as ^@. To get rid of them:
Using tr, you should be able to remove the NUL characters as follows:
tr -d '\000' < file-name > new-file-name
open the file with vim and then type ':' without the single quote and paste this:
%s/control + 2//g (on regular PCs)
%s/control + shift + 2 //g (on Mac PCs)
of course, replace with keys from your keyboard
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