To use this well, you need to learn Linux permissions. In this case, it’s telling grep to only find anything that doesn’t contain the text or string, “Permission denied.” So grep will only show you the results you’re looking for and any errors that don’t match “Permission denied.” Linux FIND by Permissions Example ![]() v – tells grep to search for anything that doesn’t match text to the left of the -v. | (called a pipe) – tells Linux to feed the results of whatever is to the left of it to whatever is to its right. Now lets look at | grep -v “Permission denied”. So 2>&1 means take the standard errors and redirect them, and then put them together with the standard output into one output. grep is a Linux tool usually used for searching text files for specific content. ![]() Your syntax for locate is correct, but you may have to run sudo updatedb first. Adding sudo allows it to search in all folders/subfolders. Also, type -f means search for files, not folders. means search only in the current directory, it is best to search everything from root if you really dont know. ![]() Use find from the command line to locate a specific file by name or extension. sudo find / -type d -name 'postgis-2.0.0' The. > – means to redirect whatever output is to the left of it to whatever is to the right of it. Find a File in Linux by Name or Extension. If the command is executed by a user with root authority, it uses the -A. Using the find command, you get both files in the results: find -iname abc.txt Find files with their name while ignoring the case Searching for Files Using their Exact Name The -name option is case-sensitive in contrast to the -iname option, so you are going to get files with the exact name. 2 – represents stderr which is short for standard errors output.ġ – represents stdout which is short for standard output By default, the ls command displays all information in alphabetic order by file name.
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