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UID:pretalx-2024-QMJYWJ@pretalx.seagl.org
DTSTART;TZID=PST:20241108T113000
DTEND;TZID=PST:20241108T122000
DESCRIPTION:Bash's parameter ( variable ) expansion has several mechanisms 
 to change values as variables are used.\n\nSome change the value assigned 
 to the variable\, some only change the value substituted when the variable
  is used.\n\nParameter expansion is an essential tool in shell scripting a
 nd one-liners.\n\nThis presentation uses examples to demonstrate basic par
 ameter expansion and also 10+ builtin expansions.\n\nParameter expansions 
 include: \n\n* using a default value if the variable isn't set\n* using an
  alternate value if the variable is set\n* several ways of changing a subs
 tring\n* counting the length of the value\n* pattern substitution\n* capit
 alizing or lowercasing strings
DTSTAMP:20260508T115726Z
LOCATION:340
SUMMARY:Bash Variable Expansion: String Operators and More - der.hans
URL:https://pretalx.seagl.org/2024/talk/QMJYWJ/
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