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--- ubuntu:bash:cut [2019/11/29 10:36] – peter
+++ ubuntu:bash:cut [2019/12/07 01:36] (current) – removed peter
@@ Line 1: / Line 1: @@
-====== Ubuntu - Bash - cut ======
-cut - remove sections from each line of files
-**cut** can return section based on number of bytes (-b), characters (-c), or fields (-f) when fields are separated by a delimiter(-d).
-Default delimiter is tab.
-----
-A range must be provided in each case which consists of one of N, N-M, N-(N to last) or -M (first to M)
-<code bash>
-cut -c 2-4
-abcdef
-</code>
-Press CTRL+D to stop inputting
-returns:
-<code bash>
-bcd
-</code>
-----
-<code bash>
-cut -c 3
-abcdef
-</code>
-returns:
-<code bash>
-c
-</code>
-----
-<code bash>
-cut -c 2,4,7
-alongtext
-</code>
-returns:
-<code bash>
-lne
-</code>
-----
-<code bash>
-cut -c -2
-abcdef
-</code>
-returns:
-<code bash>
-ab
-</code>
-----
-<code bash>
-cut -c 2-
-abcdef
-</code>
-returns:
-<code bash>
-bcdef
-</code>
-----
-<code bash>
-cut -c 1,6-9,16-
-alongtextwithnospaces
-</code>
-returns:
-<code bash>
-atextspaces
-</code
-----
-<code bash>
-cut -f 2- -d ':'
-:34:45:56
-</code>
-NOTE: -d specifies delimiter
-returns:
-<code bash>
-:45:56
-</code>
-----
-<code bash>
-cut -f 2
-er rt fg wd ji
-</code>
-returns:
-<code bash>
-er rt fg wd ji
-</code>
-NOTE: cut didn't find the delimiter (default is tab) so returns whole line.
-----
-<code bash>
-cut -f 2 -s
-er rt fg wd ji
-</code>
-NOTE: cut wont print as -s flag is used to prevent printing when delimiter not found.
-----
-<code bash>
-cut -d: -f1 /etc/passwd >users.txt
-</code>