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- scripting
- t I have seen so much ugly and terrible code (not only in shell) during all the years, that I'm 100% con... othing that technically influences a script, it's only for us humans. I'm used to seeing/using indentat... eaking of hard-tabs: Avoid them if possible. They only make trouble. I can imagine one case where they'r... variables are ''UPPERCASE'', the safest way is to only use ''lowercase'' variable names. This is true fo
- basics
- is executable, and you want to use it by calling only the script name, the shebang must be included in ... to send error messages and warnings to stderr and only program output to stdout. This enables the user to decide if they want to see nothing, only the data, only the errors, or both - and where they want to see them. When you write a script: * alw
- obselete
- whether a newline or semicolon are required vary. Only ''for'' works in Bash. Needless to say, don't use... mented by every modern shell (and then some). The only reason for using backticks is for compatibility w... here is a need for POSIX compatibility, there are only a few reasons to use ''[''. ''<nowiki>[[</nowiki>... fatal. It is a debugging feature intended for use only during development and should not be used in prod
- color
- rgb) color. This means that current support can only display 256 different colors in the terminal whil... ers. According to Wikipedia[1], this behavior is only supported by xterm and konsole. [1] https://en.w... while and but is relatively new, being still git-only in Konsole and iTerm2). This is obviously not a ... lead to a more seamless desktop experience where only one variable needs to be set. This would be syste
- truecolor
- rgb) color. This means that current support can only display 256 different colors in the terminal whil... ers. According to Wikipedia[1], this behavior is only supported by xterm and konsole. [1] https://en.w... while and but is relatively new, being still git-only in Konsole and iTerm2). This is obviously not a ... lead to a more seamless desktop experience where only one variable needs to be set. This would be syste
- behaviours
- de? There are many actions and variable sets that only make sense for the initial user login. That's why... normal Bash files. 8. Tilde expansion is only performed on assignments preceding a command... attempt to execute such a file if it is the only so-named file found in `$PATH'. 40. The `v