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Top Forums UNIX for Beginners Questions & Answers Replace one column from fixed width file with another column from another file Post 303044976 by RudiC on Tuesday 10th of March 2020 05:32:02 AM
Old 03-10-2020
The OP specified
Quote:
match (col pos#134, 12 bytes) ... if ... not found in File 2, it should replaced with blank spaces.
, that's what the formatted sprintf is for. As the sample data are just 10 byte long, not 12, we need to wait until resolved by the OP, we can just guess. Try this simplified but more flexible version
Code:
awk -vPOS=134 -vLEN=12 '
NR==FNR    {pat[$1] = $2
            next
           }

           {print substr ($0, 1, POS-1) sprintf ("%*s", LEN, pat[substr ($0, POS, LEN)]) substr ($0, POS+LEN)
           }
' FS='|' File2.txt  File1.txt

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EXPR(1) 							   User Commands							   EXPR(1)

NAME
expr - evaluate expressions SYNOPSIS
expr EXPRESSION expr OPTION DESCRIPTION
--help display this help and exit --version output version information and exit Print the value of EXPRESSION to standard output. A blank line below separates increasing precedence groups. EXPRESSION may be: ARG1 | ARG2 ARG1 if it is neither null nor 0, otherwise ARG2 ARG1 & ARG2 ARG1 if neither argument is null or 0, otherwise 0 ARG1 < ARG2 ARG1 is less than ARG2 ARG1 <= ARG2 ARG1 is less than or equal to ARG2 ARG1 = ARG2 ARG1 is equal to ARG2 ARG1 != ARG2 ARG1 is unequal to ARG2 ARG1 >= ARG2 ARG1 is greater than or equal to ARG2 ARG1 > ARG2 ARG1 is greater than ARG2 ARG1 + ARG2 arithmetic sum of ARG1 and ARG2 ARG1 - ARG2 arithmetic difference of ARG1 and ARG2 ARG1 * ARG2 arithmetic product of ARG1 and ARG2 ARG1 / ARG2 arithmetic quotient of ARG1 divided by ARG2 ARG1 % ARG2 arithmetic remainder of ARG1 divided by ARG2 STRING : REGEXP anchored pattern match of REGEXP in STRING match STRING REGEXP same as STRING : REGEXP substr STRING POS LENGTH substring of STRING, POS counted from 1 index STRING CHARS index in STRING where any CHARS is found, or 0 length STRING length of STRING + TOKEN interpret TOKEN as a string, even if it is a keyword like 'match' or an operator like '/' ( EXPRESSION ) value of EXPRESSION Beware that many operators need to be escaped or quoted for shells. Comparisons are arithmetic if both ARGs are numbers, else lexicograph- ical. Pattern matches return the string matched between ( and ) or null; if ( and ) are not used, they return the number of characters matched or 0. Exit status is 0 if EXPRESSION is neither null nor 0, 1 if EXPRESSION is null or 0, 2 if EXPRESSION is syntactically invalid, and 3 if an error occurred. AUTHOR
Written by Mike Parker, James Youngman, and Paul Eggert. REPORTING BUGS
GNU coreutils online help: <http://www.gnu.org/software/coreutils/> Report expr translation bugs to <http://translationproject.org/team/> COPYRIGHT
Copyright (C) 2017 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. SEE ALSO
Full documentation at: <http://www.gnu.org/software/coreutils/expr> or available locally via: info '(coreutils) expr invocation' GNU coreutils 8.28 January 2018 EXPR(1)
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