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UNIX for Beginners Questions & Answers
Removing unwanted symbols with sed
Post 303030412 by Xubuntu56 on Saturday 9th of February 2019 07:41:30 PM
02-09-2019
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Hi guys,
I have a txt file full of funny symbols like the copyright symbol and other funny ones that get in the way when trying to use sed. For example, not sure if you can read this but I have a line that looks like this:
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hi,
i need to remove the extra spaces in the filed.
Sample:
abc~bd ~bkd123 .. 1space
abc~badf ~bakdsf123 .. 2space
abc~bqed ~bakuowe .. 3space
output:
abc~bd ~bkd123 .. 1space
abc~badf~bakdsf123 .. 2space
abc~bqed~bakuowe .. 3space
i used the following command, (2 Replies)
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hi,
i need to remove the extra spaces in the 2nd field.
Sample:
abc|bd |bkd123 .. 1space
abc|badf |bakdsf123 .. 2space
abc|bqe |bakuowe .. 3space
Output:
abc|bd|bkd123
abc|badf|bakdsf123
abc|bqe|bakuowe
i used the following command, (9 Replies)
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Hi I am trying to remove all the symbols in a file (testfile1) and using the below command to do that. Its not working for me. Can you help me on what is wrong with below script?
I want to retain only alphabets in a file and remove all the symbols like *:.+= etc
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LEARN ABOUT MINIX
nm
NM(1) General Commands Manual NM(1) NAME
nm - print name list SYNOPSIS
nm [-dgnopru] [file] ... OPTIONS
-d Print the offsets in decimal instead of in hex -g Print only external symbols -n Sort numerically rather than alphabetically -o Prepend file name to each line rather than only once -p Do not sort, print in symbol-table order -r Sort in reverse order -u Print only undefined symbols EXAMPLES
nm -n a.out # Print all symbols in numerical order nm -dg a.out # Print globals alphabetically in decimal DESCRIPTION
Nm prints the symbol table of executable files when it is available. If no file is given, the symbols in a.out are used. The format of the table is somewhat compatible with the one produced by asld when used with the -s option. The symbol table can be added with ast. Assembly language files do not have symbol tables. SEE ALSO
anm(1), asize(1), ar(1), size(1). NM(1)