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  • What is the purpose of the do keyword in Bash for loops?
    As the shell doesn't allow you to put the list of strings to iterate on on several lines, the do could have been omitted, and newline or ; could have been used to delimit that list of strings (or just for i in the second form) but that do makes the syntax consistent with while until loops where the do is necessary
  • How to make a for loop in command line? - Unix Linux Stack Exchange
    The syntax of a for loop from the bash manual page is for name [ [ in [ word ] ] ; ] do list ; done The semicolons may be replaced with carriage returns, as noted elsewhere in the bash manual page: "A sequence of one or more newlines may appear in a list instead of a semicolon to delimit commands " However, the reverse is not true; you cannot arbitrarily replace newlines with semicolons
  • Between while and do in shell script - Unix Linux Stack Exchange
    From the bash manual: while The syntax of the while command is: while test-commands; do consequent-commands; done Execute consequent-commands as long as test-commands has an exit status of zero The return status is the exit status of the last command executed in consequent-commands, or zero if none was executed Note: test-commands, plural You can use multiple commands in the test, and so
  • What does gt; do vs gt; gt;? - Unix Linux Stack Exchange
    I am currently doing preparation for my GCSE computing controlled assessment on Linux I type ls gt; list and ls gt; gt; list into the command line, but it does not do anything I have googled it
  • Why do we use . (dot slash) to execute a file in Linux UNIX?
    Why do we use filename to execute a file in linux? Why not just enter it like other commands gcc, ls etc
  • How to correctly add a path to PATH? - Unix Linux Stack Exchange
    I'm wondering where a new path has to be added to the PATH environment variable I know this can be accomplished by editing bashrc (for example), but it's not clear how to do this This way: exp
  • Why do I need to place “do” in the same line as “for”?
    @Barmar, do note that the question here uses phrasing like "need to" and "rule", and the bashate readme calls having the do on a separate line an "error" Those are rather strict phrases, so it does seem worth it to point out that, quite on the contrary, the so-called "rule" is actually just a subjective opinion
  • shell - How to do integer float calculations, in bash or other . . .
    What command can I use to get the numeric sum, 25 in this case? Also, what's the easiest way to do it just using bash for floating point? For example, echo $((3224 3807 0)) prints 0 : ( I am looking for answers using either the basic command shell ('command line') itself or through using languages that are available from the command line
  • What is `^M` and how do I get rid of it? - Unix Linux Stack Exchange
    My situation is, I was developing my project on Windows, later I ran a Linux virtual machine, and by sharing folders, I directly opened the project that was originally on Windows in the Linux virtual machine When I ran git status, a large number of files were listed, and each line of these files ended with ^M





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