.Dd Created:2025-10-03|Updated:2025-10-21|
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.obc option arguments description
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.Dt TEXT_MANIPULATION oh
.Nm text manipulation
.Nd tools
.Tg index
.Bl -column -offset indent ".Sy Xr roff_supported oh " ".Sy roff_supported (oh) "
.It Li Xr sed oh Ta : text stream editor, commonly used for substitution.
.It Li Xr cut oh Ta : split string.
.It Li Xr tr oh Ta : translate characters.
.It Li Xr paste oh Ta : join files/lines.
.El
.Sh SED
.obc2
.It replace old with new Ta : Li  s/old/new/
.It replace all occurrences Ta : Li s/old/new/g
.It replace the second occurrence Ta : Li s/l/p/2
.El
.Ss Examples
.obdl $ echo \&"hello\&" | sed \&"s/l/p/\&"
heplo
$ echo "hello" | sed "s/l/p/g"
heppo
$ echo "hello" | sed "s/l/p/2"
helpo
.Ed
.Sh CUT
.Bl -column ".Sy - -opt "
.It -d Ta | delimeter
.It -c Ta | split by character count
.It -d Ta | split by character (specify delimeter)
.It -f Ta | specify field count. Use n,-n,n-
.D1 -f 2, gets 2nd field; -f -2, gets up to the 2nd field; -f 2-, gets from the 2nd field to the end
.El
.Bd -literal -compact
$ echo "a b c" | cut -d " " -f 2
b
$ echo "a b c" | cut -d " " -f 2-
b c
$ echo hello | cut -c 2
e
.Ed
.Sh TR
.Bd -literal -compact
$ echo "hello" | tr "l" "m"
hemmo
.Ed
.Ss control chacters
.obdl echo \&"hello\&" | tr 'e' '\en'
h
llo
.Ed
.Ss
.obdl echo 'hello' | tr 'l' '\et'
he              o
.Ed
.Ss character range
.obdl echo 'hello' | tr 'h-l' 'a-d'
aeddo
.Ed
.Ss Character classes
.obdl echo '1.hello\en2.goodbye' | tr '[:digit:]' 'a-c'
b.hello
c.goodbye
.Ed
.Sh PASTE
Requires a file OpenBSD, cat be a pipe redirection on Slackware.
.Ss OpenBSD
.Bd -literal -compact
$ cat test.log
1
2
3
$ paste -s -d "+" test.log
1+2+3
.Ed
.obdl cat test.log | paste -s -d "+"
1+2+3
.Ed
.Sh TODO
.obdi review and improve if needed.
.El
.Sh SEE ALSO
.oxr openbsd oh
.Xr slackware oh
.Sh AUTHORS
.An -nosplit
.Xr ohazot oh | 
.Xr about oh |
.Lk https://ohazot.com ohazot.com
.Aq Mt admin@ohazot.com