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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 do I resolve IPv6 related errors from NetworkManager
    Explore related questions arch-linux networkmanager journalctl See similar questions with these tags
  • Execute vs Read bit. How do directory permissions in Linux work?
    In my CMS, I noticed that directories need the executable bit (+x) set for the user to open them Why is the execute permission required to read a directory, and how do directory permissions in Linux
  • 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
  • How to conditionally do something if a command succeeded or failed
    How to conditionally do something if a command succeeded or failed That's exactly what bash's if statement does: if command ; then echo "Command succeeded" else echo "Command failed" fi Adding information from comments: you don't need to use the [ ] syntax in this case [ is itself a command, very nearly equivalent to test It's probably the most common command to use in an if, which can





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