I am running the following script in linux command line: I am getting the following error: I believe the quotes and spaces are consistent, but why am i still getting this error? Output of ps -ef | grep “java -Droute=full” Answer The actual problem you’re trying to solve is something like …
Tag: shell
Why is my cd not working in bash?
I have written small bash to automate my code The exe file is Occam2d and input file is start.txt. When I run my script I got Why? Answer With @anubhava’s comment:
Bash offer numberd results for selection to user
my script takes in a site name from the user. Its then allows the user to checkout, edit, and commit changes to the file, via the script. However, some sites have two to six files. So the script lists them as follows You have more than one Cambridge file. Please pick from the following: cambridge1 cambridge2 …
Linux – rename all files by replacing last hyphen with ‘##’
Please anyone. How do I in Linux rename a bunch of files like: abc-def-0001.xxx acb-def-0002.xxx to: abc-def##0001.xxx … I have tried several suggestions from SO like: rename ‘s/(.*)-/$1##/’ *.xxx But didn’t worked as expected in my environment. Answer So I ended up using: for i in *; …
Bash script to copy the directory structure from source directory into target directory
I am very new to Bash scritping and to get some practice, I am attempting to write a script that takes in a source directory and a destination directory. The script will search the source directory and copy its structure of sub-directories into the target directory (any files will be ignored, just the directo…
Search and replace file content using shell script
I want to search and replace specific value in a file, here is the content of the file I want to replace DocumentRoot /var/www/html with DocumentRoot /var/www/html/centos I tried the following This is not working, can someone point me to the right direction. Thanks Answer The line you are trying to replace is…
in Bash Script, how to read a file and split all lines into a two-dimensional array
Content of the file: How to read the file and split all lines into a two-dimensional array? like java. Like: thanks. Answer GNU bash has no two-dimensional array. A workaround is an associative array. See: help declare and man bash
Printing all the lines that contain a certain word exactly k times
I have to search for all the lines from a file which contain a given word exactly k times. I think that I should use grep/sed/awk but I don’t know how. My idea was to check every line by line using sed and grep like this: My first problem is that I get the following error : syntax error near
tail the last modified file and monitor for new files in bash
I can tail -f the last modified file using ls –sort=time | head -1 | xargs tail -f but I’m looking for something that would continuously run the first part as well, i.e. if a new files is created while the tail command is running it switches to tailing the new file. I thought about using watch com…
How do I search for a certain piece of text inside of a variable?
I am working on a script which prompts the user for their username. Once entered, the script uses the ‘rwho’ command to get a list of users who are logged into the network. It should crosscheck the text they entered (their username) with the results from the rwho command. If a match is found then …