Cut (Unix)
From Wikipedia, the free encyclopedia
- The correct title of this article is cut (Unix). The initial letter is shown capitalized due to technical restrictions.
 |
This article may require cleanup to meet Wikipedia's quality standards. Please discuss this issue on the talk page or replace this tag with a more specific message. This article has been tagged since February 2007. |
cut is a Unix command which is typically used to extract a certain range of characters from a line, usually from a file.
[edit] Syntax
cut [-b] [-c] [-f list] [-n] [-d delim] [-s] [file]
Flags which may be used include
- -b
- Bytes; a list following -b specifies a range of bytes which will be returned, e.g. cut -b1-66 would return the first 66 bytes of a line. NB If used in conjunction with -n, no multi-byte characters will be split. NNB. -b will only work on input lines of less than 1023 bytes
- -c
- Characters; a list following -c specifies a range of characters which will be returned, e.g. cut -c1-66 would return the first 66 characters of a line
- -f
- Specifies a field list, separated by a delimiter
- list
- A comma separated or blank separated list of integer denoted fields, incrementally ordered. The - indicator may be supplied as shorthand to allow inclusion of ranges of fields e.g. 4-6 for ranges 4–6 or 5- as shorthand for field 5 to the end, etc.
- -n
- Used in combination with -b suppresses splits of multi-byte characters
- -d
- Delimiter; the character immediately following the -d option is the field delimiter for use in conjunction with the -f option; the default delimiter is tab. Space and other characters with special meanings within the context of the shell in use must be enquoted or escaped as necessary.
- -s
- Bypasses lines which contain no field delimiters when -f is specified, unless otherwise indicated.
- file
- The file (and accompanying path if necessary) to process as input. If no file is specified then standard input will be used.
[edit] See also
[edit] External links
| Unix command line programs and builtins (more) | |||
| File and file system management: | cat | cd | chmod | chown | chgrp | cp | du | df | file | fsck | ln | ls | lsof | mkdir | mount | mv | pwd | rm | rmdir | split | touch | ||
| Process management: | at | chroot | crontab | exit | kill | killall | nice | pgrep | pidof | pkill | ps | sleep | time | top | wait | watch | ||
| User Management/Environment: | env | finger | id | mesg | passwd | su | sudo | uname | uptime | w | wall | who | whoami | write | ||
| Text processing: | awk | comm | cut | ex | head | iconv | join | less | more | paste | sed | sort | tail | tr | uniq | wc | xargs | ||
| Shell programming: | echo | expr | printf | unset | Printing: | lp |
| Communications: inetd | netstat | ping | rlogin | traceroute |
Searching: find | grep | strings |
Miscellaneous: banner | bc | cal | man | size | yes |
|
