![]() ![]() ![]() ![]() There's a -S option however that acts like chmod/ cp/ find's -L option to follow symlinks. r and -R are the same and don't follow symlinks. Apple OS/X addressed the symlink issue differently. Some of them have rewritten their own and kept more or less compatibility with GNU grep. Created by statisticians Ross Ihaka and Robert Gentleman, R is used among data miners, bioinformaticians and statisticians for data analysis and developing statistical software. It’s worth knowing about the capabilities of RStudio for data analysis and programming in R. A compound condition is formed by joining simple conditions using logical operators. Now, this condition can be a simple condition or a compound condition. RStudio is a flexible tool that helps you create readable analyses, and keeps your code, images, comments, and plots together in one place. R If statement has a condition which evaluates to a boolean value, and based on this value, it is decided whether to execute the code in if-block or not. In 2012 (grep 2.12), -r was changed so it no longer followed symlinks, possibly because -L, -H were already used for something else.īSDs grep were based on GNU grep for a long time. R is a programming language for statistical computing and graphics supported by the R Core Team and the R Foundation for Statistical Computing. RStudio is an open-source tool for programming in R. R was added as a synonym in 2001 for consistency with the other utilities. POSIX tried to make things consistent by adding the -L/ -H/ P options to give the user a chance to decide what to do with symlinks leaving the default when none is provided unspecified. Now, the behaviour varies when symlinks are found in walking down the tree. ![]() Rm also has -r because that's what it was initially, long before POSIX. Most POSIX commands that have recursive directory traversal option ( ls, chmod, chgrp, chmod, cp, rm) have -R for that. ![]()
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