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Examples

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Topics

  • Using "trap" to react to signals and system events
  • Aliasing
  • Bash Parameter Expansion
  • Here documents and here strings
  • Brace Expansion
  • Script shebang
  • Internal variables
  • Chain of commands and operations
  • Namespace
  • Typing variables
  • Jobs at specific times
  • Associative arrays
  • Handling the system prompt

Examples

  • Parameter indirection
  • Limit Strings
  • Bash internal variables at a glance
  • $GROUPS
  • $LINENO
  • $OLDPWD
  • $PWD
  • $1 $2 $3 etc...
  • Execute command with here document
  • Using brace expansion to create lists
  • react on change of terminals window size
  • transfer root cmd output to user file
  • There are no such things as namespaces
  • declare weakly typed variables
  • Execute job once at specific time
  • Doing jobs at specified times repeatedly using systemd.timer
  • Other shebangs
  • Examining assoc arrays
  • Using the PROMPT_COMMAND envrionment variable
  • Using PS2
  • Using PS3
  • Using PS4
  • Using PS1
  • logical chaining of commands with && and ||
  • serial chaining of commands with semicolon
  • chaining commands with |

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