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2 articles tagged "fi"

• BASH shell scripting tip: Set default values for variable

  A shell variable may be assigned to by a statement using following syntax:
  var=value
  If value is not given, the variable is assigned the null string. In shell program it is quite useful to provide default value for variables. For example consider rsync.sh script:
  #!/bin/bash
  RSRC=$1
  LOCAL=$2
  rsync -avz -e ’ssh ‘ user@myserver:$RSRC $LOCAL

  This script can be run as follows:
  $ ./rsync.sh [...]

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