POSIX shell checklist

[xiaq]

• 2.2.1 Backslash escaping
• 2.2.1 Line continuation
• 2.2.2 Single quotes
• 2.2.3 Double quotes
• 2.3 Comment
  • 2.3.1 Alias substitution - test in alias instead
• 2.5.1 Positional parameters
• 2.5.2 Special parameters
  • @
  • *
  • #
  • ?
  • -
  • $
  • !
  • 0
• 2.5.3 Shell variables
  • $ENV
  • $HOME
  • $IFS
  • $LANG, $LC_*, $NLSPATH
  • $LINENO
  • $PATH
  • $PPID
  • $PS1
  • $PS2
  • $PS4
  • $PWD
• 2.6 Order of expansion
• 2.6 Unparsed $
• 2.6.1 Tilde expansion
• 2.6.2 Parameter expansion
  • ${parameter}
  • ${parameter:-[word]}
  • ${parameter:=[word]}
  • ${parameter:?[word]}
  • ${parameter:+[word]}
  • ${#parameter}
  • ${parameter:%[word]}
  • ${parameter:%%[word]}
  • ${parameter:#[word]}
  • ${parameter:##[word]}
• 2.6.3 Command substitution
• 2.6.4 Arithmetic expansion
• 2.6.5 Field splitting
• 2.6.6 Pathname expansion
• 2.6.7 Quote removal
• 2.7.1 Redirecting input
• 2.7.2 Redirecting output
• 2.7.3 Appending redirected output
• 2.7.4 Here-document
• 2.7.5 Duplicating an input file descriptor
• 2.7.6 Duplicating an output file descriptor
• 2.7.{5,6} Closing of file descriptor
• 2.7.7 Open file descriptors for reading and writing
• 2.8.1 Consequences of shell errors
• 2.8.3 Exit status for commands
• 2.9.1 Simple commands
• 2.9.1 Built-in commands
  • alias
  • bg
  • cd
  • command
  • false
  • fc
  • fg
  • getopts
  • hash
  • jobs
  • kill
  • newgrp
  • pwd
  • read
  • true
  • type
  • ulimit
  • umask
  • unalias
  • wait
• 2.9.2 Pipelines
• 2.9.3 Lists (except async lists)
• 2.9.3 Async lists
• 2.9.4 Compound commands
  • ( )
  • { }
  • for
  • case
  • if
  • while
  • until
• 2.9.5 Function definition commands
• 2.10 Shell grammar
• 2.11 Signals and error handling
• 2.12 Shell execution environment
• 2.13 Pattern matching notation
• 2.14 Special built-in utilities
  • break
  • :
  • continue
  • .
  • eval
  • exec
  • exit
  • export
  • readonly
  • return
  • set
  • shift
  • times
  • trap
  • unset
• Options
  • allexport
  • errexit
  • ignoreeof
  • monitor
  • noclobber
  • noglob
  • noexec
  • nolog
  • notify
  • nounset
  • verbose
  • xtrace
  • -h