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GNU Info
Info Node: (sh-utils.info)Index
(sh-utils.info)Index
Index
*****
- !
- Connectives for test.
- !=
- String tests.
- %
- Numeric expressions.
- &
- Relations for expr.
- *
- Numeric expressions.
- +
- Numeric expressions.
- - <1>
- su invocation.
- - <2>
- env invocation.
- -
- Numeric expressions.
- --adjustment
- nice invocation.
- --all <1>
- uname invocation.
- --all <2>
- who invocation.
- --all
- stty invocation.
- --append
- tee invocation.
- --boot
- who invocation.
- --command
- su invocation.
- --count
- who invocation.
- --date
- Options for date.
- --dead
- who invocation.
- --fast
- su invocation.
- --file <1>
- Options for date.
- --file
- stty invocation.
- --format=FORMAT
- seq invocation.
- --group
- id invocation.
- --groups
- id invocation.
- --heading
- who invocation.
- --help
- Common options.
- --idle
- who invocation.
- --ignore-environment
- env invocation.
- --ignore-interrupts
- tee invocation.
- --iso-8601[=TIMESPEC]
- Options for date.
- --login <1>
- su invocation.
- --login
- who invocation.
- --lookup
- who invocation.
- --machine
- uname invocation.
- --mesg
- who invocation.
- --message
- who invocation.
- --name
- id invocation.
- --nodename
- uname invocation.
- --portability
- pathchk invocation.
- --preserve-environment
- su invocation.
- --process
- who invocation.
- --processor
- uname invocation.
- --quiet
- tty invocation.
- --real
- id invocation.
- --reference
- Options for date.
- --release
- uname invocation.
- --rfc-822
- Options for date.
- --runlevel
- who invocation.
- --save
- stty invocation.
- --set
- Options for date.
- --shell
- su invocation.
- --short
- who invocation.
- --silent
- tty invocation.
- --sysname
- uname invocation.
- --time
- who invocation.
- --universal
- Options for date.
- --user
- id invocation.
- --users
- who invocation.
- --utc
- Options for date.
- --version
- Common options.
- --writable
- who invocation.
- -a <1>
- uname invocation.
- -a <2>
- who invocation.
- -a <3>
- stty invocation.
- -a <4>
- tee invocation.
- -a
- Connectives for test.
- -ADJUSTMENT
- nice invocation.
- -b <1>
- who invocation.
- -b
- File type tests.
- -c <1>
- su invocation.
- -c
- File type tests.
- -d <1>
- Options for date.
- -d <2>
- who invocation.
- -d
- File type tests.
- -e <1>
- File characteristics tests.
- -e
- echo invocation.
- -ef
- File characteristics tests.
- -eq
- Numeric tests.
- -f <1>
- su invocation.
- -f
- Options for date.
- -F
- stty invocation.
- -f
- File type tests.
- -f FORMAT
- seq invocation.
- -G
- id invocation.
- -g <1>
- id invocation.
- -g
- stty invocation.
- -G
- Access permission tests.
- -g
- Access permission tests.
- -ge
- Numeric tests.
- -gt
- Numeric tests.
- -H
- who invocation.
- -h
- File type tests.
- -i <1>
- env invocation.
- -i <2>
- who invocation.
- -i
- tee invocation.
- -I[TIMESPEC]
- Options for date.
- -k
- Access permission tests.
- -l <1>
- su invocation.
- -l
- who invocation.
- -L
- File type tests.
- -le
- Numeric tests.
- -lt
- Numeric tests.
- -m <1>
- su invocation.
- -m <2>
- uname invocation.
- -m
- who invocation.
- -n <1>
- nice invocation.
- -n <2>
- uname invocation.
- -n <3>
- id invocation.
- -n <4>
- String tests.
- -n
- echo invocation.
- -ne
- Numeric tests.
- -nt
- File characteristics tests.
- -o
- Connectives for test.
- -O
- Access permission tests.
- -ot
- File characteristics tests.
- -p <1>
- su invocation.
- -p <2>
- uname invocation.
- -p <3>
- who invocation.
- -p <4>
- pathchk invocation.
- -p
- File type tests.
- -q
- who invocation.
- -r <1>
- uname invocation.
- -r
- Options for date.
- -R
- Options for date.
- -r <1>
- who invocation.
- -r <2>
- id invocation.
- -r
- Access permission tests.
- -s <1>
- su invocation.
- -s <2>
- uname invocation.
- -s <3>
- Options for date.
- -s <4>
- who invocation.
- -s <5>
- tty invocation.
- -s
- File characteristics tests.
- -S
- File type tests.
- -su
- su invocation.
- -T
- who invocation.
- -t <1>
- who invocation.
- -t
- File type tests.
- -u <1>
- env invocation.
- -u <2>
- Options for date.
- -u <3>
- who invocation.
- -u <4>
- id invocation.
- -u
- Access permission tests.
- -unset
- env invocation.
- -v
- uname invocation.
- -w <1>
- who invocation.
- -w
- Access permission tests.
- -x
- Access permission tests.
- -z
- String tests.
- .cshrc
- su invocation.
- /
- Numeric expressions.
- /bin/sh
- su invocation.
- /etc/passwd
- su invocation.
- /etc/shells
- su invocation.
- /var/log/wtmp <1>
- who invocation.
- /var/log/wtmp
- users invocation.
- /var/run/utmp <1>
- who invocation.
- /var/run/utmp <2>
- users invocation.
- /var/run/utmp
- logname invocation.
- <
- Relations for expr.
- <=
- Relations for expr.
- = <1>
- Relations for expr.
- =
- String tests.
- ==
- Relations for expr.
- >
- Relations for expr.
- >=
- Relations for expr.
- \( regexp operator
- String expressions.
- \+ regexp operator
- String expressions.
- \0ooo
- printf invocation.
- \0xhhh
- printf invocation.
- \? regexp operator
- String expressions.
- \c
- printf invocation.
- \uhhhh
- printf invocation.
- \Uhhhhhhhh
- printf invocation.
- \| regexp operator
- String expressions.
- abbreviations for months
- Calendar date items.
- access permission tests
- Access permission tests.
- addition
- Numeric expressions.
- ago in date strings
- Relative items in date strings.
- am i
- who invocation.
- am in date strings
- Time of day items.
- and operator <1>
- Relations for expr.
- and operator
- Connectives for test.
- appropriate privileges <1>
- nice invocation.
- appropriate privileges <2>
- hostname invocation.
- appropriate privileges
- Setting the time.
- arbitrary date strings, parsing
- Options for date.
- arbitrary text, displaying
- echo invocation.
- arithmetic tests
- Numeric tests.
- authors of getdate
- Authors of getdate.
- background jobs, stopping at terminal write
- Local.
- backslash escapes
- echo invocation.
- basename
- basename invocation.
- baud rate, setting
- Special.
- beeping at input buffer full
- Input.
- beginning of time
- Time directives.
- beginning of time, for Unix
- Date input formats.
- Bellovin, Steven M.
- Authors of getdate.
- Berets, Jim
- Authors of getdate.
- Berry, K.
- Authors of getdate.
- Berry, Karl
- Introduction.
- block special check
- File type tests.
- breaks, cause interrupts
- Input.
- breaks, ignoring
- Input.
- brkint
- Input.
- bsN
- Output.
- bugs, reporting
- Introduction.
- built-in shell commands, conflicts with <1>
- nice invocation.
- built-in shell commands, conflicts with <2>
- pwd invocation.
- built-in shell commands, conflicts with
- test invocation.
- C-s/C-q flow control
- Input.
- calendar date item
- Calendar date items.
- case translation
- Local.
- case, ignored in dates
- General date syntax.
- cbreak
- Combination.
- change or print terminal settings
- stty invocation.
- character size
- Control.
- character special check
- File type tests.
- characters, special
- Characters.
- check file types
- test invocation.
- chroot
- chroot invocation.
- clocal
- Control.
- cols
- Special.
- COLUMNS
- Special.
- columns
- Special.
- combination settings
- Combination.
- commands for delaying
- Delaying.
- commands for exit status
- Conditions.
- commands for file name manipulation
- File name manipulation.
- commands for invoking other commands
- Modified command invocation.
- commands for printing text
- Printing text.
- commands for printing the working context
- Working context.
- commands for printing user information
- User information.
- commands for redirection
- Redirection.
- commands for system context
- System context.
- comments, in dates
- General date syntax.
- common options
- Common options.
- compare values
- test invocation.
- comparison operators
- Relations for expr.
- conditions
- Conditions.
- conflicts with shell built-ins <1>
- nice invocation.
- conflicts with shell built-ins <2>
- pwd invocation.
- conflicts with shell built-ins
- test invocation.
- connectives, logical <1>
- Relations for expr.
- connectives, logical
- Connectives for test.
- context, system
- System context.
- control characters, using ^C
- Local.
- control settings
- Control.
- cooked
- Combination.
- Coordinated Universal Time <1>
- Options for date.
- Coordinated Universal Time
- Time zone items.
- cread
- Control.
- crN
- Output.
- crt
- Combination.
- crterase
- Local.
- crtkill
- Local.
- crtscts
- Control.
- csN
- Control.
- cstopb
- Control.
- ctlecho
- Local.
- current working directory, printing
- pwd invocation.
- date
- date invocation.
- date directives
- Date directives.
- date format, ISO 8601
- Calendar date items.
- date input formats
- Date input formats.
- date options
- Options for date.
- date strings, parsing
- Options for date.
- day in date strings
- Relative items in date strings.
- day of week item
- Day of week items.
- daylight-saving time
- Time zone items.
- dec
- Combination.
- decctlq
- Combination.
- delay for a specified time
- sleep invocation.
- delaying commands
- Delaying.
- destinations, multiple output
- tee invocation.
- directives, date
- Date directives.
- directives, literal
- Literal directives.
- directives, time
- Time directives.
- directory check
- File type tests.
- directory components, printing
- dirname invocation.
- directory, stripping from file names
- basename invocation.
- dirname
- dirname invocation.
- disabling special characters
- Characters.
- displacement of dates
- Relative items in date strings.
- displaying text
- echo invocation.
- division
- Numeric expressions.
- do nothing, successfully
- true invocation.
- do nothing, unsuccessfully
- false invocation.
- dsusp
- Characters.
- echo <1>
- Local.
- echo
- echo invocation.
- echoctl
- Local.
- echoe
- Local.
- echok
- Local.
- echoke
- Local.
- echonl
- Local.
- echoprt
- Local.
- effective uid and gid, printing
- id invocation.
- effective UID, printing
- whoami invocation.
- Eggert, Paul
- Authors of getdate.
- eight-bit characters <1>
- Combination.
- eight-bit characters
- Control.
- eight-bit input
- Input.
- ek
- Combination.
- env
- env invocation.
- environment variables, printing
- printenv invocation.
- environment, preserving
- su invocation.
- environment, printing
- env invocation.
- environment, running a program in a modified
- env invocation.
- eof
- Characters.
- eol
- Characters.
- eol2
- Characters.
- epoch, for Unix
- Date input formats.
- epoch, seconds since
- Time directives.
- equal string check
- String tests.
- erase
- Characters.
- evaluation of expressions
- expr invocation.
- even parity
- Control.
- evenp
- Combination.
- examples of date
- Examples of date.
- examples of expr
- Examples of expr.
- executable file check
- Access permission tests.
- existence-of-file check
- File characteristics tests.
- exit status commands
- Conditions.
- exit status of expr
- expr invocation.
- exit status of false
- false invocation.
- exit status of pathchk
- pathchk invocation.
- exit status of printenv
- printenv invocation.
- exit status of true
- true invocation.
- exit status of tty
- tty invocation.
- expr
- expr invocation.
- expression evaluation <1>
- expr invocation.
- expression evaluation
- test invocation.
- expressions, numeric
- Numeric expressions.
- expressions, string
- String expressions.
- factor
- factor invocation.
- failure exit status
- false invocation.
- false
- false invocation.
- fascism
- su invocation.
- ffN
- Output.
- fields, padding numeric
- Padding.
- file characteristics tests
- File characteristics tests.
- file name manipulation
- File name manipulation.
- file name pattern expansion, disabled
- su invocation.
- file names, checking validity and portability
- pathchk invocation.
- file names, stripping directory and suffix
- basename invocation.
- file type tests
- File type tests.
- first in date strings
- General date syntax.
- flow control, hardware
- Control.
- flow control, software
- Input.
- flushing, disabling
- Local.
- formatting of numbers in seq
- seq invocation.
- formatting times
- date invocation.
- fortnight in date strings
- Relative items in date strings.
- general date syntax
- General date syntax.
- getdate
- Date input formats.
- globbing, disabled
- su invocation.
- GMT
- Options for date.
- Greenwich Mean Time <1>
- Options for date.
- Greenwich Mean Time
- Time zone items.
- group wheel, not supported
- su invocation.
- groups
- groups invocation.
- hangups, immunity to
- nohup invocation.
- hard link check
- File characteristics tests.
- hardware flow control
- Control.
- hardware type
- uname invocation.
- hat notation for control characters
- Local.
- help, online
- Common options.
- history
- Introduction.
- HOME
- su invocation.
- host processor type
- uname invocation.
- hostid
- hostid invocation.
- hostname <1>
- hostname invocation.
- hostname
- uname invocation.
- hour in date strings
- Relative items in date strings.
- hup[cl]
- Control.
- icanon
- Local.
- icrnl
- Input.
- id
- id invocation.
- idle time
- who invocation.
- iexten
- Local.
- ignbrk
- Input.
- igncr
- Input.
- ignpar
- Input.
- imaxbel
- Input.
- immunity to hangups
- nohup invocation.
- index
- String expressions.
- information, about current users
- who invocation.
- inlcr
- Input.
- inpck
- Input.
- input settings
- Input.
- intr
- Characters.
- introduction
- Introduction.
- invocation of commands, modified
- Modified command invocation.
- isig
- Local.
- ISO 8601 date format
- Calendar date items.
- ispeed
- Special.
- istrip
- Input.
- items in date strings
- General date syntax.
- iuclc
- Input.
- ixany
- Input.
- ixoff
- Input.
- ixon
- Input.
- kill
- Characters.
- last DAY <1>
- Options for date.
- last DAY
- Day of week items.
- last in date strings
- General date syntax.
- LCASE
- Combination.
- lcase
- Combination.
- leading directory components, stripping
- basename invocation.
- length
- String expressions.
- line
- Special.
- line settings of terminal
- stty invocation.
- LINES
- Special.
- literal directives
- Literal directives.
- litout
- Combination.
- lnext
- Characters.
- local settings
- Local.
- logging out and continuing to run
- nohup invocation.
- logical and operator <1>
- Relations for expr.
- logical and operator
- Connectives for test.
- logical connectives <1>
- Relations for expr.
- logical connectives
- Connectives for test.
- logical or operator <1>
- Relations for expr.
- logical or operator
- Connectives for test.
- login name, printing
- logname invocation.
- login sessions, printing users with
- users invocation.
- login shell
- su invocation.
- login shell, creating
- su invocation.
- login time
- who invocation.
- LOGNAME
- su invocation.
- logname
- logname invocation.
- lowercase, translating to output
- Output.
- machine type
- uname invocation.
- machine-readable stty output
- stty invocation.
- MacKenzie, David <1>
- Authors of getdate.
- MacKenzie, David
- Introduction.
- manipulation of file names
- File name manipulation.
- match
- String expressions.
- matching patterns
- String expressions.
- message status
- who invocation.
- Meyering, Jim <1>
- Authors of getdate.
- Meyering, Jim
- Introduction.
- midnight in date strings
- Time of day items.
- min
- Special.
- minute in date strings
- Relative items in date strings.
- minutes, time zone correction by
- Time of day items.
- MIT AI lab
- su invocation.
- modem control
- Control.
- modified command invocation
- Modified command invocation.
- modified environment, running a program in a
- env invocation.
- modifying scheduling priority
- nice invocation.
- month in date strings
- Relative items in date strings.
- month names in date strings
- Calendar date items.
- months, written-out
- General date syntax.
- multiplication
- Numeric expressions.
- name of operating system
- uname invocation.
- named pipe check
- File type tests.
- network node name
- uname invocation.
- newer-than file check
- File characteristics tests.
- newline echoing after kill
- Local.
- newline, echoing
- Local.
- newline, translating to crlf
- Output.
- newline, translating to return
- Input.
- next DAY <1>
- Options for date.
- next DAY
- Day of week items.
- next in date strings
- General date syntax.
- nice
- nice invocation.
- nl
- Combination.
- nlN
- Output.
- no-op
- true invocation.
- node name
- uname invocation.
- noflsh
- Local.
- nohup
- nohup invocation.
- nohup.out
- nohup invocation.
- non-directory suffix, stripping
- dirname invocation.
- nonempty file check
- File characteristics tests.
- nonzero-length string check
- String tests.
- noon in date strings
- Time of day items.
- not-equal string check
- String tests.
- now in date strings
- Relative items in date strings.
- numbers, written-out
- General date syntax.
- numeric expressions
- Numeric expressions.
- numeric field padding
- Padding.
- numeric operations
- Numeric operations.
- numeric sequences
- seq invocation.
- numeric tests
- Numeric tests.
- ocrnl
- Output.
- odd parity
- Control.
- oddp
- Combination.
- ofdel
- Output.
- ofill
- Output.
- olcuc
- Output.
- older-than file check
- File characteristics tests.
- onlcr
- Output.
- onlret
- Output.
- onocr
- Output.
- operating system name
- uname invocation.
- operating system release
- uname invocation.
- operating system version
- uname invocation.
- opost
- Output.
- options for date
- Options for date.
- or operator <1>
- Relations for expr.
- or operator
- Connectives for test.
- ordinal numbers
- General date syntax.
- ospeed
- Special.
- output settings
- Output.
- owned by effective gid check
- Access permission tests.
- owned by effective uid check
- Access permission tests.
- pad character
- Output.
- pad instead of timing for delaying
- Output.
- padding of numeric fields
- Padding.
- parenb
- Control.
- parentheses for grouping
- expr invocation.
- parity
- Combination.
- parity errors, marking
- Input.
- parity, ignoring
- Input.
- parmrk
- Input.
- parodd
- Control.
- parsing date strings
- Options for date.
- pass8
- Combination.
- passwd entry, and su shell
- su invocation.
- PATH <1>
- su invocation.
- PATH
- env invocation.
- pathchk
- pathchk invocation.
- pattern matching
- String expressions.
- permission tests
- Access permission tests.
- Pinard, F.
- Authors of getdate.
- Pinard, Franc,ois
- Introduction.
- pipe fitting
- tee invocation.
- pm in date strings
- Time of day items.
- portable file names, checking for
- pathchk invocation.
- POSIX.2
- Introduction.
- prime factors
- factor invocation.
- print name of current directory
- pwd invocation.
- print system information
- uname invocation.
- print terminal file name
- tty invocation.
- printenv
- printenv invocation.
- printf
- printf invocation.
- printing all or some environment variables
- printenv invocation.
- printing current user information
- who invocation.
- printing current usernames
- users invocation.
- printing groups a user is in
- groups invocation.
- printing real and effective uid and gid
- id invocation.
- printing text
- echo invocation.
- printing text, commands for
- Printing text.
- printing the current time
- date invocation.
- printing the effective UID
- whoami invocation.
- printing the host identifier
- hostid invocation.
- printing the hostname
- hostname invocation.
- printing user's login name
- logname invocation.
- priority, modifying
- nice invocation.
- prterase
- Local.
- pure numbers in date strings
- Pure numbers in date strings.
- pwd
- pwd invocation.
- quit
- Characters.
- quote
- String expressions.
- raw
- Combination.
- read from stdin and write to stdout and files
- tee invocation.
- readable file check
- Access permission tests.
- real uid and gid, printing
- id invocation.
- redirection
- Redirection.
- regular expression matching
- String expressions.
- regular file check
- File type tests.
- relations, numeric or string
- Relations for expr.
- relative items in date strings
- Relative items in date strings.
- release of operating system
- uname invocation.
- remainder
- Numeric expressions.
- remote hostname
- who invocation.
- repeated output of a string
- yes invocation.
- restricted shell
- su invocation.
- return, ignoring
- Input.
- return, translating to newline <1>
- Output.
- return, translating to newline
- Input.
- root directory, running a program in a specified
- chroot invocation.
- root, becoming
- su invocation.
- rows
- Special.
- rprnt
- Characters.
- RTS/CTS flow control
- Control.
- running a program in a modified environment
- env invocation.
- running a program in a specified root directory
- chroot invocation.
- Salz, Rich
- Authors of getdate.
- same file check
- File characteristics tests.
- sane
- Combination.
- scheduling priority, modifying
- nice invocation.
- seconds since the epoch
- Time directives.
- separator for numbers in seq
- seq invocation.
- seq
- seq invocation.
- sequence of numbers
- seq invocation.
- set-group-id check
- Access permission tests.
- set-user-id check
- Access permission tests.
- setting the hostname
- hostname invocation.
- setting the time
- Setting the time.
- SHELL
- su invocation.
- shell utilities
- Top.
- size
- Special.
- sleep
- sleep invocation.
- socket check
- File type tests.
- software flow control
- Input.
- special characters
- Characters.
- special settings
- Special.
- speed
- Special.
- Stallman, Richard
- Introduction.
- start
- Characters.
- sticky bit check
- Access permission tests.
- stop
- Characters.
- stop bits
- Control.
- strftime and date
- date invocation.
- string expressions
- String expressions.
- string tests
- String tests.
- strip directory and suffix from file names
- basename invocation.
- stripping non-directory suffix
- dirname invocation.
- stty
- stty invocation.
- su
- su invocation.
- substitute user and group ids
- su invocation.
- substr
- String expressions.
- subtraction
- Numeric expressions.
- successful exit
- true invocation.
- suffix, stripping from file names
- basename invocation.
- super-user, becoming
- su invocation.
- supplementary groups, printing
- groups invocation.
- susp
- Characters.
- swtch
- Characters.
- symbolic link check
- File type tests.
- symbolic links and pwd
- pwd invocation.
- syslog
- su invocation.
- system context
- System context.
- system information, printing
- uname invocation.
- system name, printing
- hostname invocation.
- tabN
- Output.
- tabs
- Combination.
- tandem
- Input.
- tee
- tee invocation.
- TERM
- su invocation.
- terminal check
- File type tests.
- terminal file name, printing
- tty invocation.
- terminal lines, currently used
- who invocation.
- terminal settings
- stty invocation.
- test
- test invocation.
- text, displaying
- echo invocation.
- this in date strings
- Relative items in date strings.
- time
- Special.
- time directives
- Time directives.
- time formats
- date invocation.
- time of day item
- Time of day items.
- time setting
- Setting the time.
- time units
- sleep invocation.
- time zone correction
- Time of day items.
- time zone item
- Time zone items.
- time, printing or setting
- date invocation.
- today in date strings
- Relative items in date strings.
- tomorrow
- Options for date.
- tomorrow in date strings
- Relative items in date strings.
- tostop
- Local.
- true
- true invocation.
- tty
- tty invocation.
- Twenex
- su invocation.
- two-way parity
- Control.
- u, and disabling special characters
- Characters.
- uname
- uname invocation.
- Universal Coordinated Time
- Time zone items.
- Universal Time (Coordinated)
- Time zone items.
- uppercase, translating to lowercase
- Input.
- USER
- su invocation.
- user id, switching
- su invocation.
- user information, commands for
- User information.
- user name, printing
- logname invocation.
- usernames, printing current
- users invocation.
- users
- users invocation.
- UTC
- Options for date.
- utilities for shell programming
- Top.
- utmp
- logname invocation.
- valid file names, checking for
- pathchk invocation.
- version number, finding
- Common options.
- version of operating system
- uname invocation.
- vtN
- Output.
- week in date strings
- Relative items in date strings.
- werase
- Characters.
- wheel group, not supported
- su invocation.
- who
- who invocation.
- who am i
- who invocation.
- whoami
- whoami invocation.
- working context
- Working context.
- working directory, printing
- pwd invocation.
- writable file check
- Access permission tests.
- write, allowed
- who invocation.
- xcase
- Local.
- XON/XOFF flow control
- Input.
- year in date strings
- Relative items in date strings.
- yes
- yes invocation.
- yesterday
- Options for date.
- yesterday in date strings
- Relative items in date strings.
- zero-length string check
- String tests.
- |
- Relations for expr.
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