![]() ![]() ![]() In this particular case, you can do without grep entirely, since ls returns nonzero if it doesn't find a specified filename, as in D.Shawley's answer: if ls *log* >&/dev/null then echo "there are files of type log" fiīut in Zsh, or Bash with the failglob option set, such a command will error out if the wildcard doesn't match anything, without ever actually running ls. A solution close to the philosophy of your attempt. no-index Search files in the current directory that is not managed by Git. This works well to replace grep for simple search operations at the command line. The simplest is findstr, which is a native windows executable. There are a couple different search utilities in PowerShell, each with their own strengths. ![]() The above command will print lines matching all the patterns at once. Using findstr to grep Search In PowerShell. The option -i (interactive) will prompt for the confirmation, a good habit when you delete files with the parameter expansion. Here is the syntax using git grep combining multiple patterns using Boolean expressions: git grep -no-index -e pattern1 -and -e pattern2 -and -e pattern3. If you're on a system with an older or non-GNU version of grep that doesn't support the -q ("quiet") option, you can achieve the same result by redirecting its output to /dev/null: if ls | grep log >/dev/null then echo "there are files of type log" fi that will select each filename with 'google' in the middle that will finish for. You can use grep to search a single file or. The above sequence will search for all occurrences of string in the /threads file. The second (optional) argument is the name of a file to be searched. The first argument to grep is a search pattern. So you don't need to check the output: if ls | grep -q log then echo "there are files of type log" fi A basic grep command uses the following syntax: grep 'string' /threads.txt. Well, that's close, but you need to finish the if with fi.Īlso, if just runs a command and executes the conditional code if the command succeeds (exits with status code 0), which grep does only if it finds at least one match. ![]()
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