Bash Shell Check File Size

Bash Shell Check File Size This is idiomatic of Posix shells and not only found in Bash It intends to prevent the running of the second process if the first fails You may notice I ve used the word intent

If not quoted it is a pattern match From the Bash man page Any part of the pattern may be quoted to force it to be matched as a string Here in Bash the two statements yielding yes In bash and have equal precendence and associate to the left See Section 3 2 3 in the manual for details So your example is parsed as echo this echo that echo other And

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Bash Shell Check File Size
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Modern shells such as Bash and Zsh have inherited this construct from Ksh but it is not part of the POSIX specification If you re in an environment where you have to be strictly POSIX In bash the test command will be a built in command try type to learn its type For built in commands help will show usage so also run help to see documentation Your system

man bash e file True if file exists f file True if file exists and is a regular file A regular file is something that isn t a directory symlink socket device etc Also be aware that commands called from bash c will be forced to singlethreading eg bash c ffmpeg threads 4 i input mov output mp4 will call ffmpeg but it can only use

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Bash always seemed backward with numeric evaluations using an operator consisting of a string eq and string comparisons using a numeric operator or just is a bash is bash specific though others shells may have implemented similar constructs Don t expect it in an old school UNIX sh and apply bash pattern matching rules see Pattern

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Bash What Is The Purpose Of quot amp amp quot In A Shell Command Stack

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This is idiomatic of Posix shells and not only found in Bash It intends to prevent the running of the second process if the first fails You may notice I ve used the word intent

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Bash Shell Equality Operators eq Stack Overflow

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If not quoted it is a pattern match From the Bash man page Any part of the pattern may be quoted to force it to be matched as a string Here in Bash the two statements yielding yes

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