sqlcipher(1) A command line interface for SQLCipher version 2

SYNOPSIS

sqlcipher [options] [databasefile] [SQL]

SUMMARY

sqlcipher is a terminal-based front-end to the SQLCipher library that can evaluate queries interactively and display the results in multiple formats. sqlcipher can also be used within shell scripts and other applications to provide batch processing features.

DESCRIPTION

To start a sqlcipher interactive session, invoke the sqlcipher command and optionally provide the name of a database file. If the database file does not exist, it will be created. If the database file does exist, it will be opened.

For example, to create a new database file named "mydata.db", create a table named "memos" and insert a couple of records into that table:

$ sqlcipher mydata.db
SQLite version 3.8.3
Enter ".help" for instructions
sqlite> create table memos(text, priority INTEGER);
sqlite> insert into memos values('deliver project description', 10);
sqlite> insert into memos values('lunch with Christine', 100);
sqlite> select * from memos;
deliver project description|10
lunch with Christine|100
sqlite>

If no database name is supplied, the ATTACH sql command can be used to attach to existing or create new database files. ATTACH can also be used to attach to multiple databases within the same interactive session. This is useful for migrating data between databases, possibly changing the schema along the way.

Optionally, a SQL statement or set of SQL statements can be supplied as a single argument. Multiple statements should be separated by semi-colons.

For example:

$ sqlcipher -line mydata.db 'select * from memos where priority > 20;'

    text = lunch with Christine
priority = 100

SQLITE META-COMMANDS

The interactive interpreter offers a set of meta-commands that can be used to control the output format, examine the currently attached database files, or perform administrative operations upon the attached databases (such as rebuilding indices). Meta-commands are always prefixed with a dot (.).

A list of available meta-commands can be viewed at any time by issuing the '.help' command. For example:

sqlite> .help 

.backup ?DB? FILE      Backup DB (default "main") to FILE
.bail ON|OFF           Stop after hitting an error.  Default OFF
.databases             List names and files of attached databases
.dump ?TABLE? ...      Dump the database in an SQL text format
                         If TABLE specified, only dump tables matching
                         LIKE pattern TABLE.
.echo ON|OFF           Turn command echo on or off
.exit                  Exit this program
.explain ?ON|OFF?      Turn output mode suitable for EXPLAIN on or off.
                         With no args, it turns EXPLAIN on.
.header(s) ON|OFF      Turn display of headers on or off
.help                  Show this message
.import FILE TABLE     Import data from FILE into TABLE
.indices ?TABLE?       Show names of all indices
                         If TABLE specified, only show indices for tables
                         matching LIKE pattern TABLE.
.load FILE ?ENTRY?     Load an extension library
.log FILE|off          Turn logging on or off.  FILE can be stderr/stdout
.mode MODE ?TABLE?     Set output mode where MODE is one of:
                         csv      Comma-separated values
                         column   Left-aligned columns.  (See .width)
                         html     HTML <table> code
                         insert   SQL insert statements for TABLE
                         line     One value per line
                         list     Values delimited by .separator string
                         tabs     Tab-separated values
                         tcl      TCL list elements
.nullvalue STRING      Use STRING in place of NULL values
.open ?FILENAME?       Close existing database and reopen FILENAME
.output FILENAME       Send output to FILENAME
.output stdout         Send output to the screen
.print STRING...       Print literal STRING
.prompt MAIN CONTINUE  Replace the standard prompts
.quit                  Exit this program
.read FILENAME         Execute SQL in FILENAME
.restore ?DB? FILE     Restore content of DB (default "main") from FILE
.schema ?TABLE?        Show the CREATE statements
                         If TABLE specified, only show tables matching
                         LIKE pattern TABLE.
.separator STRING      Change separator used by output mode and .import
.show                  Show the current values for various settings
.stats ON|OFF          Turn stats on or off
.tables ?TABLE?        List names of tables
                         If TABLE specified, only list tables matching
                         LIKE pattern TABLE.
.timeout MS            Try opening locked tables for MS milliseconds
.trace FILE|off        Output each SQL statement as it is run
.vfsname ?AUX?         Print the name of the VFS stack
.width NUM1 NUM2 ...   Set column widths for "column" mode
.timer ON|OFF          Turn the CPU timer measurement on or off
sqlite>

OPTIONS

sqlcipher has the following options:
-bail
Stop after hitting an error.
-batch
Force batch I/O.
-column
Query results will be displayed in a table like form, using whitespace characters to separate the columns and align the output.
-cmd command
run command before reading stdin
-csv
Set output mode to CSV (comma separated values).
-echo
Print commands before execution.
-init file
Read and execute commands from file , which can contain a mix of SQL statements and meta-commands.
-[no]header
Turn headers on or off.
-help
Show help on options and exit.
-html
Query results will be output as simple HTML tables.
-interactive
Force interactive I/O.
-line
Query results will be displayed with one value per line, rows separated by a blank line. Designed to be easily parsed by scripts or other programs
-list
Query results will be displayed with the separator (|, by default) character between each field value. The default.
-mmap N
Set default mmap size to N .
-nullvalue string
Set string used to represent NULL values. Default is '' (empty string).
-separator separator
Set output field separator. Default is '|'.
-stats
Print memory stats before each finalize.
-version
Show SQLite version.
-vfs name
Use name as the default VFS.

INIT FILE

sqlcipher reads an initialization file to set the configuration of the interactive environment. Throughout initialization, any previously specified setting can be overridden. The sequence of initialization is as follows:

o The default configuration is established as follows: 

mode            = LIST
separator       = "|"
main prompt     = "sqlite> "
continue prompt = "   ...> "

o If the file ~/.sqliterc exists, it is processed first. can be found in the user's home directory, it is read and processed. It should generally only contain meta-commands.

o If the -init option is present, the specified file is processed.

o All other command line options are processed.

AUTHOR

This manual page was originally written by Andreas Rottmann <[email protected]>, for the Debian GNU/Linux system (but may be used by others). It was subsequently revised by Bill Bumgarner <[email protected]> and further updated by Laszlo Boszormenyi <[email protected]> .

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