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remove white space from file and display result

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Disgusted Dogfish answered on January 18, 2022 Popularity 5/10 Helpfulness 1/10

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answer remove white space from file and display result

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#!/usr/bin/env bash

function show_help()
{
  ME=$(basename "$0")
  IT=$(cat <<EOF

  usage: $ME {REPLACE_WITH}
  
  NOTE: If you pass in TAB, then multiple spaces are replaced with a TAB character

  no args -> multiple spaces replaced with a single space
  TAB     -> multiple spaces replaced with a single tab character
  TEST    -> multiple spaces replaced with the phrase "TEST"

  $ME 
EOF
)
  echo "$IT"
  echo
  exit
}


if [ "$1" == "help" ]
then
  show_help
fi

# Show help if we're not getting data from stdin
if [ -t 0 ]; then
  show_help
fi

REPLACE_WITH=${1:-' '}

if [ "$REPLACE_WITH" == "tab" ]
then
  REPLACE_WITH=$'\t'
fi
if [ "$REPLACE_WITH" == "TAB" ]
then
  REPLACE_WITH=$'\t'
fi

sed "s/ \{1,\}/$REPLACE_WITH/gp"

Popularity 5/10 Helpfulness 1/10 Language shell

Source: unix.stackexchange.com

Tags: display file shell space

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Disgusted Dogfish

Contributed on Jan 18 2022

Disgusted Dogfish

0 Answers Avg Quality 2/10

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