Of course, you will get a fatal error for authenticating, because you do not include a user name… Try this one, it is OK for me 🙂 psql -U username -d myDataBase -a -f myInsertFile If the database is remote, use the same command with host psql -h host -U username -d myDataBase -a -f … Read more
The most common ways to use the shutdown command are: shutdown -s — Shuts down. shutdown -r — Restarts. shutdown -l — Logs off. shutdown -h — Hibernates. Note: There is a common pitfall wherein users think -h means “help” (which it does for every other command-line program… except shutdown.exe, where it means “hibernate”). They … Read more
The command line for that is: node -v Or node –version Note: If node -v doesn’t work, but nodejs -v does, then something’s not set up quite right on your system. See this other question for ways to fix it.
this is all you have to do run shell commands from C# string strCmdText; strCmdText= “/C copy /b Image1.jpg + Archive.rar Image2.jpg”; System.Diagnostics.Process.Start(“CMD.exe”,strCmdText); EDIT: This is to hide the cmd window. System.Diagnostics.Process process = new System.Diagnostics.Process(); System.Diagnostics.ProcessStartInfo startInfo = new System.Diagnostics.ProcessStartInfo(); startInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden; startInfo.FileName = “cmd.exe”; startInfo.Arguments = “/C copy /b Image1.jpg + Archive.rar … Read more
import sys print(“\n”.join(sys.argv)) sys.argv is a list that contains all the arguments passed to the script on the command line. sys.argv[0] is the script name. Basically, import sys print(sys.argv[1:])
Also worth mentioning: tac (the, ahem, reverse of cat). Part of coreutils. Flipping one file into another tac a.txt > b.txt
You want: dir > a.txt 2>&1 The syntax 2>&1 will redirect 2 (stderr) to 1 (stdout). You can also hide messages by redirecting to NUL. More explanation and examples are on the Microsoft documentation page Redirecting error messages from Command Prompt: STDERR/STDOUT.
You can do yes | cp -rf xxx yyy, but my gutfeeling says that if you do it as root – your .bashrc or .profile has an alias of cp to cp -i, most modern systems (primarily RH-derivatives) do that to root profiles. You can check existing aliases by running alias at the command prompt, … Read more
Use the shell globbing syntax: grep pattern -r –include=\*.cpp –include=\*.h rootdir The syntax for –exclude is identical. Note that the star is escaped with a backslash to prevent it from being expanded by the shell (quoting it, such as –include=”*.cpp”, would work just as well). Otherwise, if you had any files in the current working … Read more
A pseudo environment variable named errorlevel stores the exit code: echo Exit Code is %errorlevel% Also, the if command has a special syntax: if errorlevel See if /? for details. Example @echo off my_nify_exe.exe if errorlevel 1 ( echo Failure Reason Given is %errorlevel% exit /b %errorlevel% ) Warning: If you set an environment variable … Read more