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https://github.com/fish-shell/fish-shell
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Updates to the documentation - add a few crossreferences, remove redundant listing of builtins and update the todo list
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4 changed files with 31 additions and 67 deletions
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@ -10,6 +10,10 @@ status (as set by the last previous command) is 0.
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The and command does not change the current exit status.
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The and command does not change the current exit status.
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The exit status of the last foreground command to exit can always be
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accessed using the <a href="index.html#variables-status">$status</a>
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variable.
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\subsection and-example Example
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\subsection and-example Example
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The following code runs the \c make command to build a program, if the
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The following code runs the \c make command to build a program, if the
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@ -4,11 +4,16 @@
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<tt>if CONDITION; COMMANDS_TRUE...; [else; COMMANDS_FALSE...;] end</tt>
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<tt>if CONDITION; COMMANDS_TRUE...; [else; COMMANDS_FALSE...;] end</tt>
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\subsection if-description Description
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\subsection if-description Description
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<tt>if</tt> will execute the command CONDITION. If the condition's exit
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<tt>if</tt> will execute the command CONDITION. If the condition's exit
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status is 0, the commands COMMANDS_TRUE will execute. If it is not 0 and
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status is 0, the commands COMMANDS_TRUE will execute. If it is not 0 and
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<tt>else</tt> is given, COMMANDS_FALSE will be executed. Hint: use
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<tt>else</tt> is given, COMMANDS_FALSE will be executed. Hint: use
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<a href="#begin"><tt>begin; ...; end</tt></a> for complex conditions.
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<a href="#begin"><tt>begin; ...; end</tt></a> for complex conditions.
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The exit status of the last foreground command to exit can always be
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accessed using the <a href="index.html#variables-status">$status</a>
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variable.
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\subsection if-example Example
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\subsection if-example Example
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<pre>
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<pre>
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@ -812,11 +812,11 @@ the string __FISH or __fish. These should be ignored by the user.
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\subsection variables-status The status variable
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\subsection variables-status The status variable
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Whenever a process exits, an exit status is returned to the program
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Whenever a process exits, an exit status is returned to the program
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that started it. This exit status is an integer number, which tells
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that started it (usually the shell). This exit status is an integer
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the calling application how the execution of the command went. In
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number, which tells the calling application how the execution of the
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general, a zero exit status means that the command executed without
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command went. In general, a zero exit status means that the command
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problem, but a non-zero exit status means there was some form of
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executed without problem, but a non-zero exit status means there was
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problem.
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some form of problem.
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Fish stores the exit status of the last process in the last job to
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Fish stores the exit status of the last process in the last job to
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exit in the \c status variable.
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exit in the \c status variable.
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@ -827,7 +827,7 @@ variable may also be set to a specific value:
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- 1 is the generally the exit status from fish builtins if they where supplied with invalid arguments
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- 1 is the generally the exit status from fish builtins if they where supplied with invalid arguments
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- 125 means an unknown error occured while trying to execute the command
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- 125 means an unknown error occured while trying to execute the command
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- 126 means that the command was not executed because none of the wildcards in the command produced any matches
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- 126 means that the command was not executed because none of the wildcards in the command produced any matches
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- 127 means that no command with the given name could be located
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- 127 means that no function, builtin or command with the given name could be located
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\subsection variables-color Variables for changing highlighting colors
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\subsection variables-color Variables for changing highlighting colors
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@ -893,61 +893,10 @@ code duplication, and to avoid the confusion of subtly differing
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versions of the same command, \c fish only implements builtins for
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versions of the same command, \c fish only implements builtins for
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actions which cannot be performed by a regular command.
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actions which cannot be performed by a regular command.
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\section bundle Commands bundled with fish
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For a list of all builtins, functions and commands shipped with fish,
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see the <a href="#toc-commands">table of contents</a>. The
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The following commands are distributed with fish. Many of them are
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documentation is also available by using the <code>--help</code>
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builtins or shellscript functions, and can only be used inside fish.
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switch of the command.
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- <a href="commands.html#source">.</a>, read and execute the commands in a file
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- <a href="commands.html#and">and</a>, execute command if previous command suceeded
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- <a href="commands.html#bg">bg</a>, set a command to the background
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- <a href="commands.html#begin">begin</a>, execute a block of commands
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- <a href="commands.html#bind">bind</a>, change keyboard bindings
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- <a href="commands.html#break">break</a>, stop the execution of a loop
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- <a href="commands.html#block">block</a>, Temporarily block delivery of events
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- <a href="commands.html#builtin">builtin</a>, execute a builtin command
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- <a href="commands.html#case">case</a>, conditionally execute a block of commands
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- <a href="commands.html#cd">cd</a>, change the current directory
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- <a href="commands.html#command">command</a>, execute an external program
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- <a href="commands.html#commandline">commandline</a>, set or get the contents of the commandline buffer
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- <a href="commands.html#complete">complete</a>, add and remove completions
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- <a href="commands.html#continue">continue</a>, skip the rest of the current lap of a loop
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- <a href="commands.html#count">count</a>, count the number of arguments
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- <a href="commands.html#dirh">dirh</a>, view the directory history
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- <a href="commands.html#dirs">dirs</a>, view the directory stack
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- <a href="commands.html#end">end</a>, end a block of commands
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- <a href="commands.html#else">else</a>, conditionally execute a block of commands
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- <a href="commands.html#eval">eval</a>, evaluate a string as a command
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- <a href="commands.html#exec">exec</a>, replace the current process image with a new command
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- <a href="commands.html#exit">exit</a>, causes \c fish to quit
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- <a href="commands.html#fg">fg</a>, set a command to the foreground
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- <a href="commands.html#fishd">fishd</a>, the universal variable daemon
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- <a href="commands.html#for">for</a>, perform a block of commands once for every element in a list
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- <a href="commands.html#function">function</a>, define a new function
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- <a href="commands.html#functions">functions</a>, print or erase functions
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- <a href="commands.html#help">help</a>, show the fish documentation
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- <a href="commands.html#if">if</a>, conditionally execute a block of commands
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- <a href="commands.html#jobs">jobs</a>, print the currently running jobs
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- <a href="commands.html#mimedb">mimedb</a>, view mimedata about a file
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- <a href="commands.html#nextd">nextd</a>, move forward in the directory history
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- <a href="commands.html#not">not</a>, negates the exit status of any command
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- <a href="commands.html#or">or</a>, execute a command if previous command failed
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- <a href="commands.html#popd">popd</a>, move to the topmost directory on the directory stack
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- <a href="commands.html#prevd">prevd</a>, move backwards in the direcotry stack
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- <a href="commands.html#pushd">pushd</a>, push the surrent directory onto the directory stack
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- <a href="commands.html#random">random</a>, calculate a pseudo-random number
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- <a href="commands.html#return">return</a>, return from a function
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- <a href="commands.html#read">read</a>, read from a stream into an environment variable
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- <a href="commands.html#set">set</a>, set environment variables
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- <a href="commands.html#set_color">set_color</a>, change the terminal colors
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- <a href="commands.html#switch">switch</a>, conditionally execute a block of commands
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- <a href="commands.html#tokenize">tokenize</a>, split a string up into multiple tokens
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- <a href="commands.html#ulimit">ulimit</a>, set or get the shells resurce usage limits
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- <a href="commands.html#umask">umask</a>, set or get the file creation mask
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- <a href="commands.html#while">while</a>, perform a block of commands while a condition is met
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For more information about these commands, use the <code>--help</code>
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option of the command to display a longer explanation.
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\section editor Command Line editor
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\section editor Command Line editor
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@ -1308,7 +1257,7 @@ g++, javac, java, gcj, lpr, doxygen, whois, find)
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- Check keybinding commands for output - if nothing has happened, don't repaint to reduce flicker
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- Check keybinding commands for output - if nothing has happened, don't repaint to reduce flicker
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- wait shellscript
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- wait shellscript
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- Support for the screen clipboard
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- Support for the screen clipboard
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- Files begining with '-' should not be colored red if a '--' argument has been given
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\subsection todo-possible Possible features
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\subsection todo-possible Possible features
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@ -1344,18 +1293,20 @@ g++, javac, java, gcj, lpr, doxygen, whois, find)
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- Try to remove more malloc calls to reduce memory usage. The time_t arrays used by the autoloader sound like a good candidate.
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- Try to remove more malloc calls to reduce memory usage. The time_t arrays used by the autoloader sound like a good candidate.
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- The code validator should warn about unknown commands.
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- The code validator should warn about unknown commands.
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- The large number of interned strings means that autounloading frees less memory than it should. Completion strings should probably be either refcounted or not shared at all.
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- The large number of interned strings means that autounloading frees less memory than it should. Completion strings should probably be either refcounted or not shared at all.
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- Auto-newlines
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\subsection bugs Known bugs and issues
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\subsection bugs Known bugs
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- Completion for gcc -\#\#\# option doesn't work.
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- Completion for gcc -\#\#\# option doesn't work.
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- Suspending and then resuming pipelines containing a builtin is broken. How should this be handled?
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- Suspending and then resuming pipelines containing a builtin is broken. How should this be handled?
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- screen handling code can't handle tabs in input.
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- screen handling code can't handle tabs in input.
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- The completion pager doesn't work if stderr is redirected.
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- Can't complete directories as commands unless there is a slash
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- ls should use dircolors
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- Doxygen called when it shouldn't?
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If you think you have found a bug not described here, please send a
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If you think you have found a bug not described here, please send a
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report to <a href="mailto:axel@liljencrantz.se"> axel@liljencrantz.se
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report to <a href="mailto:fish-users@lists.sf.net">fish-users@lists.sf.net</a>.
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</a>.
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\subsection issues Known issues
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\subsection issues Known issues
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@ -10,6 +10,10 @@ status (as set by the last previous command) is not 0.
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The or command does not change the current exit status.
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The or command does not change the current exit status.
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The exit status of the last foreground command to exit can always be
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accessed using the <a href="index.html#variables-status">$status</a>
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variable.
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\subsection or-example Example
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\subsection or-example Example
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The following code runs the \c make command to build a program, if the
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The following code runs the \c make command to build a program, if the
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