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How to know the script file name in a bash?
To answer Chris Conway, on Linux (at least) you would do this: readlink prints out the value of a symbolic link. If it isn’t a symbolic link, it prints the file name. -n tells it to not print a newline. -f tells it to follow the link completely (if a symbolic link was a link to another link, it would resolve that one as well).
How to get script path within the bash script?
Get script full path, bash get script directory, bash get script path, bash get script name, shell get script name from inside the script, shell script get absolute path, Linux find script location. In my last script I shared the steps to run shell scripts in parallel and collect their individual exit status.
Where to find Bash in Visual Studio Code?
Note: “C:\\\\Program Files\\Git\\bin\\bash.exe” is the path where the bash.exe file is located from the Git installation. If you are using the Windows Subsystem for Linux (WSL) Bash shell, the path would be “C:\\Windows\\System32\\bash.exe” Now press Ctrl + ` to open up the terminal from Visual Studio Code.
How can I get the current user’s username in Bash?
An alternative to whoami is id -u -n. id -u will return the user id (e.g. 0 for root ). Use the standard Unix/Linux/BSD/MacOS command logname to retrieve the logged in user. This ignores the environment as well as sudo, as these are unreliable reporters.
How to check if a file name matches regex in shell script?
I have a shell script that needs to check if a file name matches a certain regex, but it always shows “not match”. Can anyone let me know what’s wrong with my code?
How to check if another instance of my shell script is running?
The reason I used pgrep -f $0 instead of pgrep bash is that you could have multiple instances of bash running and thus returns multiple PIDs. By filename, its returns only single PID. Use bash script.sh not ./script.sh as it doesn’t work unless you have shebang. Fix: Use #!/bin/bash shebang at beginning.
How to determine the name of a function in Bash?
The bottom-most element (the one with the highest index) is “main”. This variable exists only when a shell function is executing. Assignments to FUNCNAME have no effect and return an error status. If FUNCNAME is unset, it loses its special properties, even if it is subsequently reset. This variable can be used with BASH_LINENO and BASH_SOURCE.
How to find all files in Linux stack overflow?
2 Try this version, with the following changes: 1.Use $1instead of $@unless you intend to run multiple find/grep to search for multiple patterns. 2.Use find $DIR -type fto find all files instead of find $DIR -iname ‘*’ 3.Avoid piping by using the -execcommand line option of find.
How to find a file using shell script?
#!/bin/bash printf ” Please enter a file name ” read num3 printf ” Please enter the path to check ” read path2check if find $path2check -name $num3 -print -quit | grep -q ‘^’; then echo “the file exists!” else echo “the file does not exist!”
How to create a file with a given name?
I want my script to create a file with a given name (via user input) but add number at the end if filename already exists. The following script can help you. You should not be running several copies of the script at the same time to avoid race condition.
How to assign a variable to a filename in Bash?
Variable assignments don’t take the $ notation in bash shell. You just need below without the $ And later in the script if filename is a variable and trying to construct a name with .o appended, enclose the variable name within {} , so that the variable is expanded properly
How to call shell script file with variable argument through Python?
I am calling a shell script file through a python command. Filename1 is a variable I have created in my standalone python program storing the actual value of filename. How do I write it to execute the 2nd statement below as Filename variable doesn’t work here.