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Top Forums UNIX for Beginners Questions & Answers Help with awk or sed Command to Replace Text in Files Post 303043432 by D3U5X on Tuesday 28th of January 2020 03:25:19 PM
Old 01-28-2020
Help with awk or sed Command to Replace Text in Files

Hello Everyone,

I have many files like so:
Code:
file1.txt
file2.txt
file3.txt

Within each file I have many lines of random text separated by commas like so:
Code:
abcAAA,123,defAA,456777,ghiA,789
jklB,101,mnoBBB,11211,pqrB,13111
stuCC,415,vwxCCCC,161,yzaC,718

I am trying to use SED or AWK to replace the 4th column with XXX on each line in each file so the result would be:

The same files like so:
Code:
file1.txt
file2.txt
file3.txt

Now within each file:
Code:
abcAAA,123,defAA,XXX,ghiA,789
jklB,101,mnoBBB,XXX,pqrB,13111
stuCC,415,vwxCCCC,XXX,yzaC,718


I have a workaround that I've come up with but it combines all the files into one file, unfortunately. (I need the files to be edited in place)
Here is my attempt:
Code:
cat *.txt | awk -F, '{print $1 "," $2 "," $3 ",XXX," $5 "," $6}' > result_file.txt


Last edited by D3U5X; 01-28-2020 at 04:53 PM..
 

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dos2unix(1)						      General Commands Manual						       dos2unix(1)

NAME
dos2unix - DOS/MAC to UNIX text file format converter SYNOPSYS
dos2unix [options] [-c convmode] [-o file ...] [-n infile outfile ...] Options: [-hkqV] [--help] [--keepdate] [--quiet] [--version] DESCRIPTION
This manual page documents dos2unix, the program that converts plain text files in DOS/MAC format to UNIX format. OPTIONS
The following options are available: -h --help Print online help. -k --keepdate Keep the date stamp of output file same as input file. -q --quiet Quiet mode. Suppress all warning and messages. -V --version Prints version information. -c --convmode convmode Sets conversion mode. Simulates dos2unix under SunOS. -o --oldfile file ... Old file mode. Convert the file and write output to it. The program default to run in this mode. Wildcard names may be used. -n --newfile infile outfile ... New file mode. Convert the infile and write output to outfile. File names must be given in pairs and wildcard names should NOT be used or you WILL lost your files. EXAMPLES
Get input from stdin and write output to stdout. dos2unix Convert and replace a.txt. Convert and replace b.txt. dos2unix a.txt b.txt dos2unix -o a.txt b.txt Convert and replace a.txt in ASCII conversion mode. Convert and replace b.txt in ISO conversion mode. Convert c.txt from Mac to Unix ascii format. dos2unix a.txt -c iso b.txt dos2unix -c ascii a.txt -c iso b.txt dos2unix -c mac a.txt b.txt Convert and replace a.txt while keeping original date stamp. dos2unix -k a.txt dos2unix -k -o a.txt Convert a.txt and write to e.txt. dos2unix -n a.txt e.txt Convert a.txt and write to e.txt, keep date stamp of e.txt same as a.txt. dos2unix -k -n a.txt e.txt Convert and replace a.txt. Convert b.txt and write to e.txt. dos2unix a.txt -n b.txt e.txt dos2unix -o a.txt -n b.txt e.txt Convert c.txt and write to e.txt. Convert and replace a.txt. Convert and replace b.txt. Convert d.txt and write to f.txt. dos2unix -n c.txt e.txt -o a.txt b.txt -n d.txt f.txt DIAGNOSTICS
BUGS
The program does not work properly under MSDOS in stdio processing mode. If you know why is that so, please tell me. AUTHORS
Benjamin Lin - <blin@socs.uts.edu.au> Bernd Johannes Wuebben (mac2unix mode) <wuebben@kde.org> MISCELLANY
Tested environment: Linux 1.2.0 with GNU C 2.5.8 SunOS 4.1.3 with GNU C 2.6.3 MS-DOS 6.20 with Borland C++ 4.02 Suggestions and bug reports are welcome. SEE ALSO
unix2dos(1) mac2unix(1) 1995.03.31 dos2unix v3.0 dos2unix(1)
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