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Top Forums Shell Programming and Scripting Find and replace with variable using sed or awk Post 302437772 by dr.house on Friday 16th of July 2010 05:34:26 AM
Old 07-16-2010
Code:
#!/bin/bash

while read LINE
do
  OLD=$( echo $LINE | cut -d, -f2 )
  NEW=$( echo $LINE | cut -d, -f1 )
  echo "$OLD <> $NEW"
  sed -e "s/^$OLD/$NEW/" -i mail_temp
done < replacements

exit 0
#finis

Code:
[house@leonov] cat replacements
Bell BB,Bell_BB
Bell,Bell_MONTHLY
SOLO,SOLO_UNBEATABLE
[house@leonov] cat mail_temp
Bell_BB 17
Bell_MONTHLY 888
SOLO_UNBEATABLE 721
[house@leonov] bash code.bash
Bell_BB <> Bell BB
Bell_MONTHLY <> Bell
SOLO_UNBEATABLE <> SOLO
[house@leonov] cat mail_temp
Bell BB 17
Bell 888
SOLO 721

 

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SEQ(1)							    BSD General Commands Manual 						    SEQ(1)

NAME
seq -- print sequences of numbers SYNOPSIS
seq [-w] [-f format] [-s string] [-t string] [first [incr]] last DESCRIPTION
The seq utility prints a sequence of numbers, one per line (default), from first (default 1), to near last as possible, in increments of incr (default 1). When first is larger than last, the default incr is -1. All numbers are interpreted as floating point. Normally integer values are printed as decimal integers. The seq utility accepts the following options: -f format Use a printf(3) style format to print each number. Only the A, a, E, e, F, f, G, g, and % conversion characters are valid, along with any optional flags and an optional numeric minimum field width or precision. The format can contain character escape sequences in backslash notation as defined in ANSI X3.159-1989 (``ANSI C89''). The default is %g. -s string Use string to separate numbers. The string can contain character escape sequences in backslash notation as defined in ANSI X3.159-1989 (``ANSI C89''). The default is . -t string Use string to terminate sequence of numbers. The string can contain character escape sequences in backslash notation as defined in ANSI X3.159-1989 (``ANSI C89''). This option is useful when the default separator does not contain a . -w Equalize the widths of all numbers by padding with zeros as necessary. This option has no effect with the -f option. If any sequence numbers will be printed in exponential notation, the default conversion is changed to %e. EXIT STATUS
The seq utility exits 0 on success, and >0 if an error occurs. EXAMPLES
# seq 1 3 1 2 3 # seq 3 1 3 2 1 # seq -w 0 .05 .1 0.00 0.05 0.10 SEE ALSO
jot(1), printf(1), printf(3) HISTORY
The seq command first appeared in Plan 9 from Bell Labs. A seq command appeared in NetBSD 3.0, and ported to FreeBSD 9.0. This command was based on the command of the same name in Plan 9 from Bell Labs and the GNU core utilities. The GNU seq command first appeared in the 1.13 shell utilities release. BUGS
The -w option does not handle the transition from pure floating point to exponent representation very well. The seq command is not bug for bug compatible with the Plan 9 from Bell Labs or GNU versions of seq. BSD
September 10, 2013 BSD
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