Write a script which for any name given as an argument prints the list of paths to home directories of people with the name solved Write a script which for any name given as an argument prints the list of paths to home directories of people with the name
Not much unless you’re root. If you are root, services that require files with certain permissions will stop working. sudo is one of those. 3 solved Chmod recursively for /
[[ $( find /folder/with/files -type f | wc -l ) -lt 3 ]] && mail -t [email protected] -s Problem <<< “Less than three files.” Find and wc -l return the count of files and then [[ evaluates if the count is lees than three. If this evaluates to true and returns zero exit status, next … Read more
Running sed -i on the same file multiple times is a horrible antipattern. Just do all the substitutions in the same sed script. You need to escape many more metacharacters than you currently do. See Escape a string for a sed replace pattern for some details. Probably that’s the reason many of your substitutions don’t … Read more
Using a SSH key is a good way of accessing a Linux server without using a password, Requirements 1.Your destination server should have ssh enabled You should have generated public and private ssh keys (just use the command ssh-keygen -t rsa) 2. You should have a user account and password on the server. Even root … Read more
If you want to parse the output of a command in bash script there are several utilities like grep, sed, awk, as well as shell builtins, that helps manipulating the strings to suit your needs. On the other hand, you can’t really do GUI-programming in bash script. For simple GUIs you may check zenity if … Read more
the “array” variable is not well initialized. To capture the output of the commands you are executing, they should be sourrounded by $() With this change, the script works for me: array=$(grep “\bd=” $file | sed -r “s/(-)?[0-9]+(\.)?(-)?([0-9]*)?,(-)?[0-9]+(\.)?(-)?([0-9]*)?/{ & },\n/g” | grep -o “{.*},”) 0 solved Exporting SVG image to points using bash
You need edit the file .bash_profile, Open the terminal Run the command to edit: nano .bash_profile Insert this line: export PS1=”[\e[0;31m]\u[\e[0;36m]@[\e[1;36m]\h[\e[1;34m]:[\e[1;33m]\w[\e[0;31m]$ [\e[0;37m]” Ctrl+X to save, close and open again the temrinal You will get a user@host:~/working/dir $ 2 solved How to show the Linux command line on 1 row? [closed]
sure – try grep grep -F -f phrases.txt doc.txt phrases.txt in excess of in order to in order for doc.txt use grep -f in order to match this line this line won’t be matched you can use grep -o to only print the matched phrase – not the entire line: $ grep -o -F -f … Read more
Try something simple like cat your-textfile | sed ‘s/october/oct/g’ | sed ‘s/November/nov/g’ If this works for you, further improvements can be made later. solved How to replace multiple string with multiple value with shell script in text file
To count the number of columns with awk you can use the NF variable: $ cat file ABC|12345|EAR PQRST|123|TWOEYES ssdf|fdas,sdfsf $ awk -F\| ‘NF!=3’ file ssdf|fdas,sdfsf However, this does not seem to cover all the possible ways the data could be corrupted based on the various revisions of the question and the comments. A better … Read more
You can run the program as: IFS=$’\n’ ./sort.exe $(cat file.txt) Each line of the file will then be an argument to the program (setting IFS to just newline prevents spaces in the file from being argument delimiters). Then the program can loop over argv (except for argv[0], which contains the program name) to get all … Read more
Use PHP glob() function to get all files from a folder $files = glob(directory_path.”/*”); // get all files in a folder // Loop through array of fetched files and insert into database. foreach ($files as $file) { $filename = basename($file); // WRITE YOU MySQL code here that inserts filenames into DB } MySQL Insert 0 … Read more
This will count multiple logins of a single user as multiple matches i.e if you ssh into a machine 3 times with the same account this will show 3 users echo $(date) $(who | awk ‘{print $1}’ | wc -l) users >> log.txt To treat multiple logins from one username as one match this is … Read more
if the call to callee.sh is hanging with parameters, try executing it outside the script with parameters and check if it is hanging there as well… Anyways, the best way of saving output (and printing it out afterwards): result=”$(./callee.sh param1 param2 param2)” echo “${result}” <— this should show the line breaks 1 solved Bash – … Read more