命令
- 1: colon
- 2: 1dot
- 3: 3dot
- 4: trap
- 5: cancel
- 6: lprm
- 7: lpq
- 8: lpstat
- 9: lp
- 10: lpr
- 11: groff
- 12: roff
- 13: printf
- 14: pr
- 15: fmt
- 16: fold
- 17: nl
- 18: aspell
- 19: sed
- 20: tr
- 21: patch
- 22: diff
- 23: comm
- 24: join
- 25: paste
- 26: cut
- 27: sort
- 28: cat
- 29: rsync
- 30: zip
- 31: tar
- 32: bzip2
- 33: gzip
- 34: find
- 35: locate
- 36: sftp
- 37: scp
- 38: ssh
- 39: wget
- 40: lftp
- 41: ftp
- 42: netstat
- 43: traceroute
- 44: ping
- 45: killall
- 46: kill
- 47: top
- 48: ps
- 49: chgrp
- 50: chown
- 51: sudo
- 52: su
- 53: umask
- 54: chmod
- 55: tee
- 56: tail
- 57: head
- 58: grep
- 59: wc
- 60: uniq
- 61: info
- 62: whatis
- 63: apropos
- 64: man
- 65: help
- 66: which
- 67: type
- 68: ln
- 69: rm
- 70: mv
- 71: cp
- 72: mkdir
- 73: less
- 74: file
- 75: ls
1 - colon
- NAME
- Null command.
SYNOPSIS :
DESCRIPTION Null command.
No effect; the command does nothing.
Exit Status:
Always succeeds.
SEE ALSO bash(1)
IMPLEMENTATION GNU bash, version 5.0.17(1)-release (x86_64-redhat-linux-gnu) Copyright (C) 2019 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later http://gnu.org/licenses/gpl.html
2 - 1dot
https://linuxcommand.org/lc3_man_pages/doth.html
NAME . - Execute commands from a file in the current shell.
SYNOPSIS . filename [arguments]
DESCRIPTION Execute commands from a file in the current shell.
Read and execute commands from FILENAME in the current shell. The
entries in $PATH are used to find the directory containing FILENAME.
If any ARGUMENTS are supplied, they become the positional parameters
when FILENAME is executed.
Exit Status:
Returns the status of the last command executed in FILENAME; fails if
FILENAME cannot be read.
SEE ALSO bash(1)
IMPLEMENTATION GNU bash, version 5.0.17(1)-release (x86_64-redhat-linux-gnu) Copyright (C) 2019 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later http://gnu.org/licenses/gpl.html
3 - 3dot
https://linuxcommand.org/lc3_man_pages/dbl_parensh.html
NAME (( … )) - Evaluate arithmetic expression.
SYNOPSIS (( expression ))
DESCRIPTION Evaluate arithmetic expression.
The EXPRESSION is evaluated according to the rules for arithmetic
evaluation. Equivalent to "let EXPRESSION".
Exit Status:
Returns 1 if EXPRESSION evaluates to 0; returns 0 otherwise.
SEE ALSO bash(1)
IMPLEMENTATION GNU bash, version 5.0.17(1)-release (x86_64-redhat-linux-gnu) Copyright (C) 2019 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later http://gnu.org/licenses/gpl.html