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|
file: &errout
file: &input
file: &output
file: file(/dev/null)
file: file(/etc/motd)
aaa
bbbb
ccccc
dddddd
eeeeeee
ffffffff
ggggggggg
hhhhhhhhhh
flush /etc/motd: file(/etc/motd)
close /etc/motd: file(/etc/motd)
close /etc/motd: file(/etc/motd)
flush /etc/motd: file(/etc/motd)
flush /dev/null: file(/dev/null)
close /dev/null: file(/dev/null)
close /dev/null: file(/dev/null)
flush /dev/null: file(/dev/null)
read /dev/null:
!f:
read/!f:
reads():
write tmp1,w: follow the yellow brick road : 30
read tmp1: follow the yellow brick road
!f: follow the yellow brick road
read/!f: follow the yellow brick road
reads(): follo w.the .yell ow.br ick.r oad.
write tmp1,w: shorter file : 14
read tmp1: shorter file
!f: shorter file
read/!f: shorter file
reads(): short er.fi le.
write tmp1,a: gets extended : 28
read tmp1: shorter file gets extended
!f: shorter file gets extended
read/!f: shorter file gets extended
reads(): short er.fi le.ge ts.ex tende d.
write tmp1,rw: changed : 9
read tmp1: changed file gets extended
!f: changed file gets extended
read/!f: changed file gets extended
reads(): chang ed.fi le.ge ts.ex tende d.
write tmp1,b: mode b : 8
read tmp1: mode b file gets extended
!f: mode b file gets extended
read/!f: mode b file gets extended
reads(): mode. b..fi le.ge ts.ex tende d.
write tmp1,crw: cleared anew : 14
read tmp1: cleared anew
!f: cleared anew
read/!f: cleared anew
reads(): clear ed.an ew.
read tmp2: cleared anew
!f: cleared anew
read/!f: cleared anew
reads(): clear ed.an ew.
file(tmp1)
file(tmp2)
>stdout>stdout>stdout
>stdout
read tmp1: >1a>1b>1c >1d >1e>1f
!f: >1a>1b>1c >1d >1e>1f
read/!f: >1a>1b>1c >1d >1e>1f
reads(): >1a>1 b>1c. .>1d. .>1e> 1f.
read tmp2: >2a>2b >2c >2d >2e>2f
!f: >2a>2b >2c >2d >2e>2f
read/!f: >2a>2b >2c >2d >2e>2f
reads(): >2a>2 b.>2c .>2d. .>2e> 2f.
abcdef
ghi
jklmno
pqr
stu
vwxyz
$ echo hello world
hello world
$ ls io.[ids][tca][dnt]
io.dat
io.icn
io.std
file(echo hello world)
> hello world
file(sed 's/^/=()= /' io.icn)
> =()= #SRC: JCON
> =()=
> =()= # I/O test -- writes ./tmp1 and ./tmp2 as well as stdout
> =()=
> =()= procedure main()
> =()= local L, f, m, n, t1, t2
> =()=
> =()= L := [&input, &output, &errout,
> =()= m := open("/etc/motd") | stop("no /etc/motd"),
> =()= n := open("/dev/null", "w") | stop("no /dev/null")]
file(ls io.i?n io.d?t io.s?d)
> io.dat
> io.icn
> io.std
file(tr aeiou oaeui)
--- closing output pipe
unca ipun o medneght draory
twu ruods devargad en o yalluw wuud
ond tha muma roths uitgroba
--- done closing output pipe
|
