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91 lines
2.1 KiB
Text
91 lines
2.1 KiB
Text
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#!/bin/sh
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# NAME
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# stripcr - a program for removing carriage return chars from dos-files.
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#
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# SYNOPSIS
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# stripcr [file...]
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#
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# DESCRIPTION
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# stripcr deletes all CR characters from the given files.
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# The files are edited in place.
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# If no files are given, stdin and stdout are used instead.
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#
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# OPTIONS
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# -s extension Make a copy of the original of each file, and
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# give it the given extension (.bak, .orig, -bak, ...).
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#
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# EXAMPLES
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# stripcr file.txt innerloop.cc
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# stripcr -i.bak *.cc
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#
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# ENVIRONMENT
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# NDB_PROJ_HOME Home dir for ndb
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#
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# FILES
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# $NDB_PROJ_HOME/lib/funcs.sh Some userful functions for safe execution
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# of commands, printing, and tracing.
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#
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# VERSION
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# 1.0
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#
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# AUTHOR
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# Jonas M<>ls<6C>
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#
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progname=`basename $0`
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synopsis="stripcr [-s extension] [file...]"
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: ${NDB_PROJ_HOME:?} # If undefined, exit with error message
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: ${STRIPCR_OPTIONS:=--} # If undefined, set to --, to keep getopts happy.
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# You may have to experiment, to get quoting right.
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. $NDB_PROJ_HOME/lib/funcs.sh
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# defaults for options related variables
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#
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extension=
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options="$STRIPCR_OPTIONS"
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# used if error when parsing the options environment variable
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#
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env_opterr="options environment variable: <<$options>>"
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# We want to be able to set options in an environment variable,
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# as well as on the command line. In order not to have to repeat
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# the same getopts information twice, we loop two times over the
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# getopts while loop. The first time, we process options from
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# the options environment variable, the second time we process
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# options from the command line.
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#
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# The things to change are the actual options and what they do.
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#
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#
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for optstring in "$options" "" # 1. options variable 2. cmd line
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do
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while getopts s: i $optstring # optstring empty => no arg => cmd line
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do
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case $i in
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s) extension="$OPTARG";;
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\?) syndie $env_opterr;; # print synopsis and exit
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esac
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done
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[ -n "$optstring" ] && OPTIND=1 # Reset for round 2, cmd line options
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env_opterr= # Round 2 should not use the value
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done
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shift `expr $OPTIND - 1`
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safe perl -i$extension -lpe 'tr/\r//d' $*
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