Group Listing of Commands

This section briefly lists all Extended Tcl commands, grouped logically by function.

General Commands

commandloop

Create an interactive command loop.

dirs

List directories in directory stack.

echo

Write strings to standard output.

for_array_keys

Loop over each key in an array.

for_recursive_glob

Loop recursively over files matching a pattern.

host_info

Return information about a network host.

infox

Return information about Extended Tcl.

loop

Loop over a range of values.

mainloop

Call event loop handler.

popd

Pop top entry from the directory stack.

pushd

Push entry onto directory stack.

recursive_glob

Return list of files recursively matching pattern.

tclx_errorHandler

User-defined procedure to handle errors.

try_eval

Evaluate code and trap errors.

Debugging and Development Commands

cmdtrace

Trace command execution.

edprocs

Edit source code for procedures.

profile

Collect performance data.

profrep

Generate report from performance data.

saveprocs

Save procedure definitions to file.

showproc

List definitions of procedures.

Unix Access Commands

alarm

Send alarm signal.

chroot

Change root directory.

execl

Start a new program.

fork

Create a child process.

id

Set, get, or convert user, group, and process identifiers.

kill

Send signal to a process.

link

Create a hard or symbolic link.

nice

Set or get process priority.

readdir

Return list of directory entries.

signal

Handle Unix signals.

sleep

Delay process execution.

sync

Flush pending buffered output.

system

Execute shell command.

times

Return process and child execution times.

umask

Set or get file creation permission mask.

wait

Wait for command to terminate.

File Commands

bsearch

Search lines of file for a string.

chgrp

Set group ID of files.

chmod

Set file permissions.

chown

Set owner of files.

dup

Duplicate an open file identifier.

fcntl

Set or get attributes of file identifier.

flock

Apply lock on an open file.

for_file

Loop over contents of a file.

fstat

Return status information about an open file identifier.

ftruncate

Truncate a file to a specified length.

funlock

Remove lock from an open file.

lgets

Read Tcl list from a file.

pipe

Create a pipe.

read_file

Read file contents into a string.

select

Check file identifiers for change in status.

write_file

Write strings to a file.

File Scanning Commands

scancontext

Create, delete, or modify file scan contexts.

scanfile

Perform file context scanning.

scanmatch

Specify commands for file context scanning.

Math Commands

These commands operate in the same fashion as their counterparts that are built into the expr command. They accept as arguments any expression accepted by the expr command. The trigonometric functions use values expressed in radians.

abs

Absolute value.

acos

Arc cosine.

asin

Arc sine.

atan

Arc tangent.

atan2

Arc tangent (accepts two parameters).

ceil

Round up to the nearest integer.

cos

Cosine.

cosh

Hyperbolic cosine.

double

Convert numeric value to double-precision floating-point value.

exp

e raised to the power of the argument.

floor

Round down to the nearest integer.

fmod

Floating-point remainder (accepts two arguments).

hypot

Hypotenuse function (accepts two arguments).

int

Convert to integer by truncating.

log

Natural logarithm.

log10

Base 10 logarithm.

max

Maximum value (accepts one or more arguments).

min

Minimum value (accepts one or more arguments).

pow

Exponentiation (accepts two parameters).

random

Return random floating-point number.

round

Convert to integer by rounding.

sin

Sine.

sinh

Hyperbolic sine.

sqrt

Square root.

tan

Tangent.

tanh

Hyperbolic tangent.

List Manipulation Commands

intersect

Return list of elements common to two lists.

intersect3

Accept two lists, returning items common to, and unique to, each list.

lassign

Assign list elements to variables.

lcontain

Return 1 if element is contained in a list.

lempty

Return 1 if a list is empty.

lmatch

Search list for elements matching a pattern.

lrmdups

Remove duplicate list elements.

lvarcat

Concatenate lists onto a variable.

lvarpop

Delete or replace list element contained in a variable.

lvarpush

Insert element into list contained in a variable.

union

Return logical union of two lists.

Keyed List Commands

keyldel

Delete entry from keyed list.

keylget

Return value from keyed list.

keylkeys

Return list of keys from keyed list.

keylset

Set value in keyed list.

String and Character Manipulation Commands

ccollate

Return collation ordering of two strings.

cconcat

Concatenate strings.

cequal

Compare strings for equality.

cindex

Return one character from a string.

clength

Return length of a string.

crange

Return range of characters from a string.

csubstr

Return substring of a string.

ctoken

Parse a token out of a string.

ctype

Return type of characters in a string.

replicate

Replicate a string several times.

translit

Transliterate characters in a string.

XPG/3 Message Catalog Commands

catclose

Close a message catalog.

catgets

Retrieve message from a catalog.

catopen

Open a message catalog.

Help Commands

apropos

Locate help information based on a pattern.

help

Online help system for Extended Tcl.

helpcd

Change current location in tree of help subjects.

helppwd

List current help subject location.

Library and Package Commands

auto_commands

List names of loadable commands.

auto_load_file

Source a file using autoload path.

auto_ packages

Return names of defined packages.

buildpackageindex

Build index files for package libraries.

convert_lib

Convert Tcl index and source files into a package.

loadlibindex

Load a package library index.

searchpath

Search a path of directories for a file.

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