Examples using... "os"

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Download File to Disk in Go
by yhuang Go os http.Get io io.Copy net/http
Template (Share) in Go
by GoDoc Go os log.Fatal log.Fatalf os.Stdout filepath.Join
This example demonstrates how to use one group of driver templates with distinct sets of helper templates.
Template (Helpers) in Go
by GoDoc Go os log.Fatal log.Fatalf os.Stdout filepath.Join
This example demonstrates one way to share some templates and use them in different contexts. In this variant we add multiple driver templates by hand to an existing bundle of templates.
Template (Glob) in Go
by GoDoc Go os filepath.Join log log.Fatalf os.RemoveAll
Here we demonstrate loading a set of templates from a directory.
Template (Func) in Go
by GoDoc Go os log.Fatalf log os.Stdout strings
This example demonstrates a custom function to process template text. It installs the strings.Title function and uses it to Make Title Text Look Good In Our Template's Output.
Template (Block) in Go
by GoDoc Go os log.Fatal os.Stdout log strings
Template is the representation of a parsed template. The *parse.Tree field is exported only for use by html/template and should be treated as unexported by all other clients.
Template in Go
by GoDoc Go os log log.Println os.Stdout template.Must
Template is the representation of a parsed template. The *parse.Tree field is exported only for use by html/template and should be treated as unexported by all other clients.
Using text/tabwriter (TrailingTab) in Go
by GoDoc Go os fmt.Fprintln fmt os.Stdout tabwriter.AlignRight
Package tabwriter implements a write filter (tabwriter.Writer) that translates tabbed columns in input into properly aligned text.
Using text/tabwriter (Elastic) in Go
by GoDoc Go os fmt.Fprintln fmt os.Stdout tabwriter.AlignRight
Package tabwriter implements a write filter (tabwriter.Writer) that translates tabbed columns in input into properly aligned text.
Writer.Init in Go
by GoDoc Go os fmt.Fprintln os.Stdout tabwriter.Writer.Flush tabwriter.Writer.Init
A Writer must be initialized with a call to Init. The first parameter (output) specifies the filter output. The remaining parameters control the formatting:
Pool in Go
by GoDoc Go os bytes.Buffer bytes io io.Writer
A Pool is a set of temporary objects that may be individually saved and retrieved.
hdr-User_annotation in Go
by GoDoc Go os log.Fatalf fmt fmt.Printf log
Example demonstrates the use of the trace package to trace the execution of a Go program. The trace output will be written to the file trace.out
TypeOf in Go
by GoDoc Go os reflect.TypeOf fmt fmt.Println io
TypeOf returns the reflection Type that represents the dynamic type of i. If i is a nil interface value, TypeOf returns nil.
Walk in Go
by GoDoc Go os fmt.Printf os.RemoveAll filepath.Join filepath.SkipDir
Walk walks the file tree rooted at root, calling walkFn for each file or directory in the tree, including root. All errors that arise visiting files and directories are filtered by walkFn. The files are walked in lexical order, which makes the output deterministic but means that for very large direc...
Notify (AllSignals) in Go
by GoDoc Go os fmt fmt.Println os.Signal os/signal
Notify causes package signal to relay incoming signals to c. If no signals are provided, all incoming signals will be relayed to c. Otherwise, just the provided signals will.
Notify in Go
by GoDoc Go os fmt fmt.Println os.Interrupt os.Signal
Notify causes package signal to relay incoming signals to c. If no signals are provided, all incoming signals will be relayed to c. Otherwise, just the provided signals will.
Unsetenv in Go
by GoDoc Go os os.Setenv os.Unsetenv
Unsetenv unsets a single environment variable.
OpenFile (Append) in Go
by GoDoc Go os log.Fatal log os.O_APPEND os.O_CREATE
OpenFile is the generalized open call; most users will use Open or Create instead. It opens the named file with specified flag (O_RDONLY etc.). If the file does not exist, and the O_CREATE flag is passed, it is created with mode perm (before umask). If successful, methods on the returned File can be...
OpenFile in Go
by GoDoc Go os log.Fatal log os.O_CREATE os.O_RDWR
OpenFile is the generalized open call; most users will use Open or Create instead. It opens the named file with specified flag (O_RDONLY etc.). If the file does not exist, and the O_CREATE flag is passed, it is created with mode perm (before umask). If successful, methods on the returned File can be...
LookupEnv in Go
by GoDoc Go os fmt.Printf os.Setenv fmt os.LookupEnv
LookupEnv retrieves the value of the environment variable named by the key. If the variable is present in the environment the value (which may be empty) is returned and the boolean is true. Otherwise the returned value will be empty and the boolean will be false.
IsNotExist in Go
by GoDoc Go os fmt fmt.Println os.IsNotExist os.Stat
IsNotExist returns a boolean indicating whether the error is known to report that a file or directory does not exist. It is satisfied by ErrNotExist as well as some syscall errors.
Getenv in Go
by GoDoc Go os os.Getenv os.Setenv fmt fmt.Printf
Getenv retrieves the value of the environment variable named by the key. It returns the value, which will be empty if the variable is not present. To distinguish between an empty value and an unset value, use LookupEnv.
FileMode in Go
by GoDoc Go os fmt.Println fmt fmt.Printf log
A FileMode represents a file's mode and permission bits. The bits have the same definition on all systems, so that information about files can be moved from one system to another portably. Not all bits apply to all systems. The only required bit is ModeDir for directories.
ExpandEnv in Go
by GoDoc Go os os.Setenv fmt fmt.Println os.ExpandEnv
ExpandEnv replaces ${var} or $var in the string according to the values of the current environment variables. References to undefined variables are replaced by the empty string.
Expand in Go
by GoDoc Go os fmt fmt.Println os.Expand
Expand replaces ${var} or $var in the string based on the mapping function. For example, os.ExpandEnv(s) is equivalent to os.Expand(s, os.Getenv).
Chtimes in Go
by GoDoc Go os time.Date time.UTC log log.Fatal
Chtimes changes the access and modification times of the named file, similar to the Unix utime() or utimes() functions.
Chmod in Go
by GoDoc Go os log log.Fatal os.Chmod
Chmod changes the mode of the named file to mode. If the file is a symbolic link, it changes the mode of the link's target. If there is an error, it will be of type *PathError.
Command (Environment) in Go
by GoDoc Go os exec.Command log log.Fatal os.Environ
Command returns the Cmd struct to execute the named program with the given arguments.
Server.Shutdown in Go
by GoDoc Go os context context.Background http.ErrServerClosed http.Server
Shutdown gracefully shuts down the server without interrupting any active connections. Shutdown works by first closing all open listeners, then closing all idle connections, and then waiting indefinitely for connections to return to idle and then shut down. If the provided context expires before the...
FileServer (DotFileHiding) in Go
by GoDoc Go os http.File strings.HasPrefix http.Dir http.FileServer
FileServer returns a handler that serves HTTP requests with the contents of the file system rooted at root.