dotfiles.org

~ TJM /undos

#!/bin/sh
#
# Script proper written by Cristan Szmajda
# (I have added extra info. 3/31/08 TJM)
#
# Usage: undos <filename>
#
# This script is useful where there are no 
# dos2unix tools available.
#
######################################################
# Refer to the ascii table (http://www.asciitable.com) 
# to get the octal representation of the characters. 
# The following is a brief list of Control characters 
# octal representation:
######################################################
#Oct Dec Hex Name
# 000 0 0x00 NUL
# 001 1 0x01 SOH, Control-A
# 002 2 0x02 STX, Control-B
# 003 3 0x03 ETX, Control-C
# 004 4 0x04 EOT, Control-D
# 005 5 0x05 ENQ, Control-E
# 006 6 0x06 ACK, Control-F
# 007 7 0x07 BEL, Control-G
# 010 8 0x08 BS, backspace, Control-H
# 011 9 0x09 HT, tab, Control-I
# 012 10 0x0a LF, line feed, newline, Control-J
# 013 11 0x0b VT, Control-K
# 014 12 0x0c FF, form feed, NP, Control-L
# 015 13 0x0d CR, carriage return, Control-M
# 016 14 0x0e SO, Control-N
# 017 15 0x0f SI, Control-O
# 020 16 0x10 DLE, Control-P
# 021 17 0x11 DC1, XON, Control-Q
# 022 18 0x12 DC2, Control-R
# 023 19 0x13 DC3, XOFF, Control-S
# 024 20 0x14 DC4, Control-T
# 025 21 0x15 NAK, Control-U
# 026 22 0x16 SYN, Control-V
# 027 23 0x17 ETB, Control-W
# 030 24 0x18 CAN, Control-X
# 031 25 0x19 EM, Control-Y
# 032 26 0x1a SUB, Control-Z
#######################################################
# By changing octal variable, a custom script(s) could
# be created.
#######################################################

if [ $# -eq 0 ]; then
        echo "Usage: undos "
fi

for file
do
tr -d '\015' <$file >/tmp/.undos.$$
mv /tmp/.undos.$$ $file
done