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<A HREF="Bash-Prompt-HOWTO-4.html">$B<!$N%Z!<%8(B</A>
<A HREF="Bash-Prompt-HOWTO-2.html">$BA0$N%Z!<%8(B</A>
<A HREF="Bash-Prompt-HOWTO.html#toc3">$BL\<!$X(B</A>
<HR>
<H2><A NAME="s3">3. $B30It%3%^%s%I(B</A></H2>
<H2><A NAME="ss3.1">3.1 PROMPT_COMMAND</A>
</H2>
<P>Bash $B$K$O!"(B<B>PROMPT_COMMAND</B> $B$H$$$&4D6-JQ?t$,$"$j$^$9!#$3$NFbMF$O(B
Bash $B$,%W%m%s%W%H$r=P$9A0$KIaDL$N(B Bash $B$N%3%^%s%I$H$7$F<B9T$5$l$^$9!#(B
<PRE>
[21:55:01][giles@nikola:~] PS1="[\u@\h:\w]\$ "
[giles@nikola:~] PROMPT_COMMAND="date +%H%M"
2155
[giles@nikola:~] d
bin mail
2156
[giles@nikola:~]
</PRE>
<P>
<P>$B$3$3$G$O!"(B<CODE>\t</CODE>$B%(%9%1!<%W%7!<%1%s%9$O(B PS1 $B$NCf$K$O$"$j$^$;$s$N$G!"(B
$B%W%m%s%W%H$K$O;~4V>pJs$,4^$^$l$^$;$s!#(B<CODE>date +%H%M</CODE>$B$K$h$C$F(B
$B;d$N9%$_$N%U%)!<%^%C%H$G;~4V$,I=<($5$l$^$9!#$7$+$7!";~4V$,%W%m%s%W%H$H(B
$BJL$N9T$KI=$l$^$9!#(BBash 2.0+ $B$G$O!"(B<CODE>echo -n ...</CODE>$B$r;H$C$F$3$l$r(B
$BD>$9$3$H$,$G$-$^$9$,!"(BBash 1.14.7 $B$G$O$G$-$J$$$h$&$G$9!#%W%m%s%W%H$N(B
$BI=<(J}K!$,0[$J$C$F$*$j!"%F%-%9%H$,(B2$B2sI=<($5$l$k$h$&$K$J$C$F$7$^$$$^$9!#(B
<PRE>
2156
[giles@nikola:~] PROMPT_COMMAND="echo -n [$(date +%H%M)]"
[2156][giles@nikola:~]$
[2156][giles@nikola:~]$ d
bin mail
[2157][giles@nikola:~]$ unset PROMPT_COMMAND
[giles@nikola:~]
</PRE>
<P>
<P><CODE>echo -n ...</CODE>$B$O(B date $B%3%^%s%I$N=PNO$r@)8f$7!":G8e$N2~9T$rM^@)$9$k(B
$B$3$H$K$h$C$F!"%W%m%s%W%H$,(B1$B9T$GI=<($5$l$k$h$&$K$J$j$^$9!#:G8e$K(B
<CODE>unset</CODE>$B%3%^%s%I$r;H$C$F!"4D6-JQ?t(B PROMPT_COMMAND $B$r=|$-$^$9!#(B
<P>$B%3%^%s%IE83+$r9T$J$&$N$K!"(B$(<command>)$B$H$$$&=q$-J}$r;H$C$F(B
$B$$$k$3$H$KCm0U$7$F$/$@$5$$!#$D$^$j!"(B
<P>
<PRE>
$(date +%H%M)
</PRE>
<P>$B$O!"!V(B<B>date +%H%M</B>$B$N%3%^%s%I$N=PNO$GCV49$9$k!W$H$$$&0UL#$G$9!#(B
$B$3$l$O!"(BBash 2.0+ $B$G$OF0$-$^$9$,!"(B1.14.7 $B0JA0$N(B Bash $B$G$O!"%P%C%/%/%)!<%H(B
$B$r;H$C$F!"(B<CODE>`date +%H%M`</CODE>$B$H$7$^$9!#(BBash 2.0+ $B$G$b%P%C%/%/%)!<%H$O(B
$B;H$($^$9$,!"(B$()$B$NJ}$,%M%9%H$7$d$9$$$N$G;H$o$l$J$/$J$C$F$$$^$9!#(B
$B$3$NJ8=q$G$O$3$N=q$-J}$r;H$C$F$$$-$^$9!#$b$7$"$J$?$N;H$C$F$$$k(B Bash $B$,(B
$B8E$$%P!<%8%g%s$J$i!"(B$()$B$NBe$o$j$K%P%C%/%/%)!<%H$r;H$C$F$/$@$5$$!#(B
$B%3%^%s%IE83+$,%(%9%1!<%W$5$l$F$$$k;~(B($B$D$^$j(B \$(command) )$B$O!"%P%C%/%/%)!<%H$r(B
$BN>J}%(%9%1!<%W(B($B$D$^$j(B \`command\` )$B$7$F$/$@$5$$(B
<H2><A NAME="ss3.2">3.2 $B%W%m%s%W%H$NCf$G$N30It%3%^%s%I(B</A>
</H2>
<P>$BIaDL$N(B Linux $B$N%3%^%s%I$N=PNO$rD>@\%W%m%s%W%H$KKd$a9~$`$3$H$b$G$-$^$9!#(B
$B$?$/$5$s$N$b$N$rKd$a9~$b$&$H$O$7$J$$$G$/$@$5$$!#(B
$B%W%m%s%W%H$,D9$/$J$j$9$.$^$9!#$"$J$?$O(B
<B>$BB.$$(B</B>$B%3%^%s%I$r;H$$$?$$$H$b;W$C$F$$$k$G$7$g$&!#%W%m%s%W%H$,2hLL$K(B
$BI=<($5$l$k$?$S$K<B9T$5$l$F!":n6HCf$K%W%m%s%W%H$NI=<($K;~4V$,$+$+$k$H(B
$B%$%i%$%i$7$^$9$+$i!#(B($BA0$N(B
$BNc$K;w$F$$$^$9$,!"$3$l$O(B Bash 1.14.7 $B$G$bF0:n$7$^$9!#(B)
<P>
<BLOCKQUOTE><CODE>
<PRE>
[21:58:33][giles@nikola:~]$ PS1="[\$(date +%H%M)][\u@\h:\w]\$ "
[2159][giles@nikola:~]$ ls
bin mail
[2200][giles@nikola:~]$
</PRE>
</CODE></BLOCKQUOTE>
<P>
<P>$B%3%^%s%IE83+$N%I%k0u$NA0$K$"$k%P%C%/%9%i%C%7%e$KCm0U$7$F2<$5$$!#$3$l$,(B
$B$J$$$H30It%3%^%s%I$O!"(BPS1 $BJ8;zNs$,4D6-$KFI$_9~$^$l$k;~$K$?$C$?0lEY$@$1$7$+(B
$B<B9T$5$l$^$;$s!#$3$N%W%m%s%W%H$N>l9g$K$O!"$I$s$J$KD9$/%W%m%s%W%H$,(B
$B;H$o$l$F$b!"$$$D$bF1$8;~4V$rI=<($9$k$3$H$K$J$j$^$9!#(B
$B%P%C%/%9%i%C%7%e$rCV$/$3$H$K$h$C$F!"(B$()$B$NFbMF$,$9$0$K$O<B9T$5$l$J$/(B
$B$J$j!"(B"date" $B$O%W%m%s%W%H$,@8@.$5$l$kEY$K<B9T$5$l$k$3$H$K$J$j$^$9!#(B
<P>Linux $B$K$OB?$/$N>.$5$J%f!<%F%#%j%F%#$,$D$$$F$-$^$9!#(B<B>date</B>$B!"(B
<B>grep</B>$B!"(B <B>wc</B>$B$J$I$G%G!<%?$rA`:n$G$-$^$9!#$3$N$h$&$J(B
$B%W%m%0%i%`$r;H$C$FJ#;($J%W%m%s%W%H$r:n$k$K$O!"%7%'%k%9%/%j%W%H$r(B
$B:n$C$F!"$=$l$r%W%m%s%W%H$+$i<B9T$5$;$?J}$,$$$$$G$7$g$&!#%9%/%j%W%H$N(B
$BCf$G$b%3%^%s%I$,@5$7$$;~$K<B9T$5$l$k$h$&!"%(%9%1!<%W%7!<%1%s%9$,(B
$BI,MW$K$J$k$3$H$,$"$j$^$9(B($B>e$N(Bdate$B%3%^%s%I$NNc$N$h$&$K(B)$B!#(BPS1$B$N9T$N(B
$BCf$G$O%l%Y%k$,0lCJ>e$,$k$3$H$K$J$j$^$9$N$G!"%7%'%k%9%/%j%W%H$r:n$k(B
$B$3$H$K$h$j$3$l$rHr$1$k$N$O$h$$9M$($G$9!#(B
<P>$B>.$5$J%7%'%k%9%/%j%W%H$r%W%m%s%W%H$NCf$G;H$&Nc$r<($7$^$7$g$&!#(B
<HR>
<PRE>
#!/bin/bash
# lsbytesum - sum the number of bytes in a directory listing
TotalBytes=0
for Bytes in $(ls -l | grep "^-" | cut -c30-41)
do
let TotalBytes=$TotalBytes+$Bytes
done
TotalMeg=$(echo -e "scale=3 \n$TotalBytes/1048576 \nquit" | bc)
echo -n "$TotalMeg"
</PRE>
<HR>
<P>
<P>
<P>$B$3$N$h$&$J$b$N$r4X?t(B($B$NJ}$,8zN(E*$G$9$,!"$3$NJ8=q$G$O4X?t$N=q$-J}$O(B
$B;DG0$J$,$i07$$$^$;$s(B)$B$K$7$?$j!"%Q%9$NDL$C$F$$$k(B /bin $B%G%#%l%/%H%j$NCf$K(B
$B%7%'%k%9%/%j%W%H$H$7$FJ]B8$7$F$*$-$^$9!#%W%m%s%W%H$NCf$G$N;H$$J}$O!"(B
<BLOCKQUOTE><CODE>
<PRE>
[2158][giles@nikola:~]$ PS1="[\u@\h:\w (\$(lsbytesum) Mb)]\$ "
[giles@nikola:~ (0 Mb)]$ cd /bin
[giles@nikola:/bin (4.498 Mb)]$
</PRE>
</CODE></BLOCKQUOTE>
<P>
<H2><A NAME="ss3.3">3.3 $B%W%m%s%W%H$K2?$rCV$/$+(B</A>
</H2>
<P>$B;d$,<($9%W%m%s%W%H$NNc$G$O!"$[$H$s$I$$$D$b%f!<%6!<L>!"5!3#L>!";~4V!"8=:_$N(B
$B%G%#%l%/%H%jL>$,I=<($5$l$k$3$H$K$*5$$E$-$G$7$g$&!#;~4V$r=|$1$P!"$3$l$i$O(B
$B%W%m%s%W%H$KI=<($5$l$kI8=`$N$b$N$G!";~4V$O$*$=$i$/$=$N<!$KDI2C$5$l$k$3$H$N(B
$BB?$$$b$N$G$7$g$&!#$G$b2?$r$$$l$k$+$O!"A4$/8D?M$N<qL#$K$+$+$k$b$N$G$9!#(B
$B$3$3$G$O!";d$NCN$C$F$$$k?M$?$A$NNc$r<($7$F$"$J$?$K;29M$K$7$F$b$i$$$^$7$g$&!#(B
<P>
<P>Dan$B$N%W%m%s%W%H$OC;$$$1$l$I$b8z2LE*$G$9!#FC$KH`$N;E;v$N$d$jJ}$K$H$C$F!#(B
<P>
<PRE>
[giles@nikola:~]$ cur_tty=$(tty | sed -e "s/.*tty\(.*\)/\1/")
[giles@nikola:~]$ echo $cur_tty
p4
[giles@nikola:~]$ PS1="\!,$cur_tty,\$?\$ "
1095,p4,0$
</PRE>
<P>
<P>Dan$B$O!"%G%#%l%/%H%j%D%j!<$rF0$-2s$C$F$$$k4V!"%W%m%s%W%H$ND9$5$,5^$KBgI}$K(B
$BJQ$o$k$N$G!"8=:_$N%G%#%l%/%H%j$rI=<($9$k$N$O9%$-$G$O$"$j$^$;$s!#$@$+$i$=$l$O(B
$BF,$K$?$?$-9~$s$G$*$-$^$9(B($B$^$?$O(Bpwd$B%3%^%s%I$r;H$$$^$9(B)$B!#H`$O(B Unix $B$r(B csh $B$d(B
tcsh $B$G3X$s$@$N$G!"%3%^%s%I%R%9%H%j!<$r(B
$B$h$/;H$$$^$9(B(Bash $B;H$$$O$"$^$j$=$&$O$7$J$$$h$&$G$9(B)$B$N$G!"%W%m%s%W%H$N:G=i$K(B
$B%R%9%H%jHV9f$rI=<($7$^$9!#<!$K(B(tty $B%3%^%s%I$N=PNO$r(B sed $B$G2C9)$7$F(B)tty $B$N(B
$BJ8;zNs$NCf$NFCD'E*$JItJ,$rI=<($7$^$9!#$3$l$O(B "screen" $B$r;H$C$F$$$k?M$N(B
$BLr$KN)$A$^$9!#;0HVL\$K!":G8e$K;H$C$?%3%^%s%I$d(B
$B%Q%$%W%i%$%s$N(B exit $BCM$rI=<($7$^$9(B($B$3$l$O%W%m%s%W%H$+$i<B9T$5$l$k%3%^%s%I(B
$B$G$O0UL#$,$"$j$^$;$s$N$G!"(Bexit$BCM$rJL$NJQ?t$KJa$($FI=<($9$k$h$&$J$3$H$r(B
$B9M$($kI,MW$,$"$j$^$9(B)$B!#:G8e$K(B \$ $B$GDL>o$N%f!<%6!<$G$O(B $ $B$r!"(Broot $B$KBP$7$F$O(B
# $B$rI=<($9$k$h$&$K$7$^$9!#(B
<P>
<P>Torben Fjerdingstad $B$O!";~!9%8%g%V$r%5%9%Z%s%I$7!"$=$N$3$H$K$D$$$FK:$l$F(B
$B$7$^$&$N$G!"%5%9%Z%s%ICf$N%8%g%V$r;W$$=P$5$;$F$/$l$k%W%m%s%W%H$r;H$C$F$$$k(B
$B$H%a!<%k$7$F$/$l$^$7$?!#(B
<P>
<BLOCKQUOTE><CODE>
<PRE>
[giles@nikola:~]$ function jobcount {
> jobs|wc -l| awk '{print $1}'
> }
[giles@nikola:~]$ export PS1='\W[`jobcount`]# '
giles[0]# man ls &
[1] 4150
[1]+ Stopped (tty output) man ls
giles[1]#
</PRE>
</CODE></BLOCKQUOTE>
<P>
<P>Torben $B$O!"(B<B>awk</B>$B$G(B wc $B$N=PNO$NCf$N%9%Z!<%9$r:o$C$F$$$^$9!#;d$J$i(B
sed $B$+(B tr $B$r;H$&$3$H$G$7$g$&!#$=$NJ}$,$$$$$+$i$G$O$J$/!"$=$NJ}$,47$l$F(B
$B$$$k$+$i$G$9!#B>$NJ}K!$b$"$k$3$H$G$7$g$&!#(BTorben $B$O(B PS1 $BJ8;zNs$r%7%s%0%k(B
$B%/%)!<%H$G0O$s$G$$$^$9$,!"$3$l$O(B Bash $B$,%P%C%/%/%)!<%H$rD>$A$K2r<a$9$k$N$r(B
$BKI$.$^$9!#;d$,=R$Y$?%(%9%1!<%W$NJ}K!$O;H$C$F$$$^$;$s!#(B
<P>
<P><B>$BCm0U(B:</B> Bash 2.02 $B$K$O%7%'%k$NAH$_9~$_%3%^%s%I$G$"$k(B <B>jobs</B> $B$,(B
$B%Q%$%W$K2?$bEO$5$J$$$H$$$&%P%0$,CN$i$l$F$$$^$9!#>e$N%3!<%I$r(B Bash 2.02 $B$G(B
$B;n$9$H!"%5%9%Z%s%I$7$?%8%g%V$,$$$/$D$"$C$F$b(B0$B$,5"$C$F$-$^$9!#(BBash $B$NJ]<i$r(B
$B$7$F$$$k0l?M$G$"$k(B Chet Ramey $B$O!"(Bv2.03 $B$G$O$3$l$rD>$9$H8@$C$F$$$^$9!#(B
<P>
<H2><A NAME="ss3.4">3.4 Bash $B$N4D6-$H4X?t(B</A>
</H2>
<P>$B$9$G$K=R$Y$?$h$&$K!"(BPS1$B!"(BPS2$B!"(BPS3$B!"(BPS4$B!"(BPROMPT_COMMAND $B$O$9$Y$F(B
Bash $B$N4D6-$KJ]B8$5$l$^$9!#;d$?$A$N$h$&$K(B DOS $B$+$i$-$?$b$N$K$H$C$F!"(B
DOS $B$N4D6-NN0h$O69$/!"$&$^$/3HD%$G$-$J$+$C$?$N$G!"4D6-$KB?$/$NJ8;z$r(B
$B$$$l$k$N$O62I]$G$9!#$*$=$i$/4D6-$NBg$-$5$K$O<B:]>e$N>e8B$,$"$k$N$G(B
$B$7$g$&$,!";d$OCN$j$^$;$s$7!"(BDOS $B%f!<%6!<$,47$l$F$$$?Bg$-$5$N2?G\$b$N(B
$B%*!<%@!<$NOC$J$N$G$7$g$&!#(BDan $B$O<!$N$h$&$K8@$C$F$$$^$9!#(B
<P>$B!V;d$N;H$C$F$$$kBPOC7?$N%7%'%k$K$O!"%(%$%j%"%9$,(B62$B$H4X?t$,(B25$B$"$k!#(B
$BBPOC7?$@$1$G;H$&$b$N$G!"4JC1$K(B bash $B$G=q$1$k>l9g$O!"4X?t$K$7$F$$$k(B
($B%(%$%j%"%9$G=q$/$K$OFq$7$$>l9g(B)$B!#$b$7%a%b%j$,5$$K$J$k$J$i!"(Bbash $B$r(B
$B;H$o$J$$J}$,$$$$$@$m$&!#(Bbash $B$O;d$N(B linux box $B$GF0$$$F$$$k%W%m%0%i%`$N(B
$BCf$G(B Oracle $B$N<!$KBg$-$$!#(Btop $B%3%^%s%I$r;~!9F0$+$7$F!"(BM $B$r2!$7$F%a%b%j$N(B
$BBg$-$5$G%=!<%H$7$F$4$i$s!#(Bbash $B$,$[$H$s$I0lHV>e$K6a$$$H$3$m$K$"$k$N$,(B
$B$o$+$k$@$m$&!#(Bsendmail $B$h$jBg$-$$$s$@$h(B! $B%a%b%j$,5$$K$J$k$J$i(B ash $B$N$h$&$J(B
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$B$rF0$+$;$P!"(BBash $B$h$jBg$-$$$N$,$$$C$Q$$$"$j$^$9!#$G$b9M$(J}$OF1$8$G$9!#(B
$B4D6-$O;H$&$Y$-$b$N$G!";H$$2a$.$r?4G[$9$kI,MW$O$J$$$N$G$9$+$i!#(B
<P>$B$3$&=q$/$H!"(BUnix $B$NF3;U$?$A$K$OC1=c2=$7$9$.$F$$$k$H8!1\$r<u$1$k$+$b$7$l$^$;$s!#(B
$B$7$+$74X?t$O4pK\E*$K>.$5$J%7%'%k%9%/%j%W%H$G!"8zN($N$?$a$K4D6-$KFI$_9~$^$l$F(B
$B$$$^$9!#(BDan $B$N8@MU$r<Z$j$l$P!V%7%'%k4X?t$O!"8B3&$K6a$$$H$3$m$^$G8zN(E*$@!#(B
$B%7%'%k%9%/%j%W%H$r(B source $B$9$k$N$H$[$\F1MM$N$3$H$r%U%!%$%kF~=PNO$J$7$K(B
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$B%m%0%$%s%7%'%k$+%5%V%7%'%k$+$K$h$C$F!"(B.bashrc $B$+(B .bash_profile $B%U%!%$%k$+$i(B
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$B;R%W%m%;%9$,(B exec $B$r9T$J$$!"$*$=$i$/%Q%9$,C5$5$l!"%+!<%M%k$O%U%!%$%k$r(B
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$B>l9g$K$O?7$7$$%7%'%k$r%9%/%j%W%HL>$r0z?t$H$7$FM?$($F5/F0$7!"$=$N%7%'%k(B
$B$,%U%!%$%k$r3+$$$F!"3F9T$r<B9T$9$k!#%7%'%k4X?t$N>l9g$HHf$Y$k$H!"3F9T$r(B
$B<B9T$9$k0J30$NItJ,$OITI,MW$J%*!<%P!<%X%C%I$K$9$.$J$$!#!W(B
<P>
<HR>
<A HREF="Bash-Prompt-HOWTO-4.html">$B<!$N%Z!<%8(B</A>
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