sample-bashrc.html

Shall高级编程

 299 { find . -type f -iname '*'$1'*' -exec "${2:-file}" {} \;  ; }
 300 # find pattern in a set of filesand highlight them:
 301 
 302 function fstr()
 303 {
 304     OPTIND=1
 305     local case=""
 306     local usage="fstr: find string in files.
 307 Usage: fstr [-i] \"pattern\" [\"filename pattern\"] "
 308     while getopts :it opt
 309     do
 310         case "$opt" in
 311         i) case="-i " ;;
 312         *) echo "$usage"; return;;
 313         esac
 314     done
 315     shift $(( $OPTIND - 1 ))
 316     if [ "$#" -lt 1 ]; then
 317         echo "$usage"
 318         return;
 319     fi
 320     local SMSO=$(tput smso)
 321     local RMSO=$(tput rmso)
 322     find . -type f -name "${2:-*}" -print0 |
 323     xargs -0 grep -sn ${case} "$1" 2>&- | \
 324     sed "s/$1/${SMSO}\0${RMSO}/gI" | more
 325 }
 326 
 327 function cuttail() # Cut last n lines in file, 10 by default.
 328 {
 329     nlines=${2:-10}
 330     sed -n -e :a -e "1,${nlines}!{P;N;D;};N;ba" $1
 331 }
 332 
 333 function lowercase()  # move filenames to lowercase
 334 {
 335     for file ; do
 336         filename=${file##*/}
 337         case "$filename" in
 338         */*) dirname==${file%/*} ;;
 339         *) dirname=.;;
 340         esac
 341         nf=$(echo $filename | tr A-Z a-z)
 342         newname="${dirname}/${nf}"
 343         if [ "$nf" != "$filename" ]; then
 344             mv "$file" "$newname"
 345             echo "lowercase: $file --> $newname"
 346         else
 347             echo "lowercase: $file not changed."
 348         fi
 349     done
 350 }
 351 
 352 function swap()         # swap 2 filenames around
 353 {
 354     local TMPFILE=tmp.$$
 355     mv "$1" $TMPFILE
 356     mv "$2" "$1"
 357     mv $TMPFILE "$2"
 358 }
 359 
 360 
 361 #-----------------------------------
 362 # Process/system related functions:
 363 #-----------------------------------
 364 
 365 function my_ps()
 366 { ps $@ -u $USER -o pid,%cpu,%mem,bsdtime,command ; }
 367 
 368 function pp()
 369 { my_ps f | awk '!/awk/ && $0~var' var=${1:-".*"} ; }
 370 
 371 # This function is roughly the same as 'killall' on linux
 372 # but has no equivalent (that I know of) on Solaris
 373 function killps()   # kill by process name
 374 {
 375    local pid pname sig="-TERM"   # default signal
 376    if [ "$#" -lt 1 ] || [ "$#" -gt 2 ]; then
 377        echo "Usage: killps [-SIGNAL] pattern"
 378        return;
 379    fi
 380    if [ $# = 2 ]; then sig=$1 ; fi
 381    for pid in $(my_ps| awk '!/awk/ && $0~pat { print $1 }' pat=${!#} ) ; do
 382        pname=$(my_ps | awk '$1~var { print $5 }' var=$pid )
 383        if ask "Kill process $pid <$pname> with signal $sig?"
 384            then kill $sig $pid
 385        fi
 386    done
 387 }
 388 
 389 function my_ip() # get IP adresses
 390 {
 391     MY_IP=$(/sbin/ifconfig ppp0 | awk '/inet/ { print $2 } ' | \
 392 sed -e s/addr://)
 393     MY_ISP=$(/sbin/ifconfig ppp0 | awk '/P-t-P/ { print $3 } ' | \
 394 sed -e s/P-t-P://)
 395 }
 396 
 397 function ii()   # get current host related info
 398 {
 399   echo -e "\nYou are logged on ${RED}$HOST"
 400   echo -e "\nAdditionnal information:$NC " ; uname -a
 401   echo -e "\n${RED}Users logged on:$NC " ; w -h
 402   echo -e "\n${RED}Current date :$NC " ; date
 403   echo -e "\n${RED}Machine stats :$NC " ; uptime
 404   echo -e "\n${RED}Memory stats :$NC " ; free
 405   my_ip 2>&- ;
 406   echo -e "\n${RED}Local IP Address :$NC" ; echo ${MY_IP:-"Not connected"}
 407   echo -e "\n${RED}ISP Address :$NC" ; echo ${MY_ISP:-"Not connected"}
 408   echo
 409 }
 410 
 411 # Misc utilities:
 412 
 413 function repeat()       # repeat n times command
 414 {
 415     local i max
 416     max=$1; shift;
 417     for ((i=1; i <= max ; i++)); do  # --> C-like syntax
 418         eval "$@";
 419     done
 420 }
 421 
 422 function ask()
 423 {
 424     echo -n "$@" '[y/n] ' ; read ans
 425     case "$ans" in
 426         y*|Y*) return 0 ;;
 427         *) return 1 ;;
 428     esac
 429 }
 430 
 431 #=======================================================================
 432 #
 433 # PROGRAMMABLE COMPLETION - ONLY SINCE BASH-2.04
 434 # Most are taken from the bash 2.05 documentation and from Ian McDonalds
 435 # 'Bash completion' package
 436 #  (http://www.caliban.org/bash/index.shtml#completion)
 437 # You will in fact need bash-2.05a for some features
 438 #
 439 #=======================================================================
 440 
 441 if [ "${BASH_VERSION%.*}" \< "2.05" ]; then
 442    echo "You will need to upgrade to version 2.05 \
 443 for programmable completion"
 444    return
 445 fi
 446 
 447 shopt -s extglob        # necessary
 448 set +o nounset          # otherwise some completions will fail
 449 
 450 complete -A hostname   rsh rcp telnet rlogin r ftp ping disk
 451 complete -A export     printenv
 452 complete -A variable   export local readonly unset
 453 complete -A enabled    builtin
 454 complete -A alias      alias unalias
 455 complete -A function   function
 456 complete -A user       su mail finger
 457 
 458 complete -A helptopic  help     # currently same as builtins
 459 complete -A shopt      shopt
 460 complete -A stopped -P '%' bg
 461 complete -A job -P '%'     fg jobs disown
 462 
 463 complete -A directory  mkdir rmdir
 464 complete -A directory   -o default cd
 465 
 466 # Compression
 467 complete -f -o default -X '*.+(zip|ZIP)'  zip
 468 complete -f -o default -X '!*.+(zip|ZIP)' unzip
 469 complete -f -o default -X '*.+(z|Z)'      compress
 470 complete -f -o default -X '!*.+(z|Z)'     uncompress
 471 complete -f -o default -X '*.+(gz|GZ)'    gzip
 472 complete -f -o default -X '!*.+(gz|GZ)'   gunzip
 473 complete -f -o default -X '*.+(bz2|BZ2)'  bzip2
 474 complete -f -o default -X '!*.+(bz2|BZ2)' bunzip2
 475 # Postscript,pdf,dvi.....
 476 complete -f -o default -X '!*.ps'  gs ghostview ps2pdf ps2ascii
 477 complete -f -o default -X '!*.dvi' dvips dvipdf xdvi dviselect dvitype
 478 complete -f -o default -X '!*.pdf' acroread pdf2ps
 479 complete -f -o default -X '!*.+(pdf|ps)' gv
 480 complete -f -o default -X '!*.texi*' makeinfo texi2dvi texi2html texi2pdf
 481 complete -f -o default -X '!*.tex' tex latex slitex
 482 complete -f -o default -X '!*.lyx' lyx
 483 complete -f -o default -X '!*.+(htm*|HTM*)' lynx html2ps
 484 # Multimedia
 485 complete -f -o default -X '!*.+(jp*g|gif|xpm|png|bmp)' xv gimp
 486 complete -f -o default -X '!*.+(mp3|MP3)' mpg123 mpg321
 487 complete -f -o default -X '!*.+(ogg|OGG)' ogg123
 488 
 489 
 490 
 491 complete -f -o default -X '!*.pl'  perl perl5
 492 
 493 # This is a 'universal' completion function - it works when commands have
 494 # a so-called 'long options' mode , ie: 'ls --all' instead of 'ls -a'
 495 
 496 _get_longopts () 
 497 { 
 498     $1 --help | sed  -e '/--/!d' -e 's/.*--\([^[:space:].,]*\).*/--\1/'| \
 499 grep ^"$2" |sort -u ;
 500 }
 501 
 502 _longopts_func ()
 503 {
 504     case "${2:-*}" in
 505 	-*)	;;
 506 	*)	return ;;
 507     esac
 508 
 509     case "$1" in
 510 	\~*)	eval cmd="$1" ;;
 511 	*)	cmd="$1" ;;
 512     esac
 513     COMPREPLY=( $(_get_longopts ${1} ${2} ) )
 514 }
 515 complete  -o default -F _longopts_func configure bash
 516 complete  -o default -F _longopts_func wget id info a2ps ls recode
 517 
 518 
 519 _make_targets ()
 520 {
 521     local mdef makef gcmd cur prev i
 522 
 523     COMPREPLY=()
 524     cur=${COMP_WORDS[COMP_CWORD]}
 525     prev=${COMP_WORDS[COMP_CWORD-1]}
 526 
 527     # if prev argument is -f, return possible filename completions.
 528     # we could be a little smarter here and return matches against
 529     # `makefile Makefile *.mk', whatever exists
 530     case "$prev" in
 531         -*f)    COMPREPLY=( $(compgen -f $cur ) ); return 0;;
 532     esac
 533 
 534     # if we want an option, return the possible posix options
 535     case "$cur" in
 536         -)      COMPREPLY=(-e -f -i -k -n -p -q -r -S -s -t); return 0;;
 537     esac
 538 
 539     # make reads `makefile' before `Makefile'
 540     if [ -f makefile ]; then
 541         mdef=makefile
 542     elif [ -f Makefile ]; then
 543         mdef=Makefile
 544     else
 545         mdef=*.mk               # local convention
 546     fi
 547 
 548     # before we scan for targets, see if a makefile name was specified
 549     # with -f
 550     for (( i=0; i < ${#COMP_WORDS[@]}; i++ )); do
 551         if [[ ${COMP_WORDS[i]} == -*f ]]; then
 552             eval makef=${COMP_WORDS[i+1]}      # eval for tilde expansion
 553             break
 554         fi
 555     done
 556 
 557         [ -z "$makef" ] && makef=$mdef
 558 
 559     # if we have a partial word to complete, restrict completions to
 560     # matches of that word
 561     if [ -n "$2" ]; then gcmd='grep "^$2"' ; else gcmd=cat ; fi
 562 
 563     # if we don't want to use *.mk, we can take out the cat and use
 564     # test -f $makef and input redirection
 565     COMPREPLY=( $(cat $makef 2>/dev/null | \
 566     awk 'BEGIN {FS=":"} /^[^.#   ][^=]*:/ {print $1}' \
 567     | tr -s ' ' '\012' | sort -u | eval $gcmd ) )
 568 }
 569 
 570 complete -F _make_targets -X '+($*|*.[cho])' make gmake pmake
 571 
 572 
 573 # cvs(1) completion
 574 _cvs ()
 575 {
 576     local cur prev
 577     COMPREPLY=()
 578     cur=${COMP_WORDS[COMP_CWORD]}
 579     prev=${COMP_WORDS[COMP_CWORD-1]}
 580 
 581     if [ $COMP_CWORD -eq 1 ] || [ "${prev:0:1}" = "-" ]; then
 582         COMPREPLY=( $( compgen -W 'add admin checkout commit diff \
 583         export history import log rdiff release remove rtag status \
 584         tag update' $cur ))
 585     else
 586         COMPREPLY=( $( compgen -f $cur ))
 587     fi
 588     return 0
 589 }
 590 complete -F _cvs cvs
 591 
 592 _killall ()
 593 {
 594     local cur prev
 595     COMPREPLY=()
 596     cur=${COMP_WORDS[COMP_CWORD]}
 597 
 598     # get a list of processes (the first sed evaluation
 599     # takes care of swapped out processes, the second
 600     # takes care of getting the basename of the process)
 601     COMPREPLY=( $( /usr/bin/ps -u $USER -o comm  | \
 602         sed -e '1,1d' -e 's#[]\[]##g' -e 's#^.*/##'| \
 603         awk '{if ($0 ~ /^'$cur'/) print $0}' ))
 604 
 605     return 0
 606 }
 607 
 608 complete -F _killall killall killps
 609 
 610 
 611 # A meta-command completion function for commands like sudo(8), which
 612 # need to first complete on a command,
 613 # then complete according to that command's own
 614 # completion definition - currently not quite foolproof
 615 # (e.g. mount and umount don't work properly),
 616 # but still quite useful --
 617 # By Ian McDonald, modified by me.
 618 
 619 _my_command()
 620 {
 621     local cur func cline cspec
 622     
 623     COMPREPLY=()
 624     cur=${COMP_WORDS[COMP_CWORD]}
 625 
 626     if [ $COMP_CWORD = 1 ]; then
 627 	COMPREPLY=( $( compgen -c $cur ) )
 628     elif complete -p ${COMP_WORDS[1]} &>/dev/null; then
 629 	cspec=$( complete -p ${COMP_WORDS[1]} )
 630 	if [ "${cspec%%-F *}" != "${cspec}" ]; then
 631 	    # complete -F <function>
 632 	    #
 633 	    # COMP_CWORD and COMP_WORDS() are not read-only,
 634 	    # so we can set them before handing off to regular
 635 	    # completion routine
 636 	
 637 	    # set current token number to 1 less than now
 638 	    COMP_CWORD=$(( $COMP_CWORD - 1 ))
 639 	    # get function name
 640 	    func=${cspec#*-F }
 641 	    func=${func%% *}
 642 	    # get current command line minus initial command
 643 	    cline="${COMP_LINE#$1 }"
 644 	    # split current command line tokens into array
 645 		COMP_WORDS=( $cline )
 646 	    $func $cline
 647 	elif [ "${cspec#*-[abcdefgjkvu]}" != "" ]; then
 648           # complete -[abcdefgjkvu]
 649           #func=$( echo $cspec | sed -e 's/^.*\(-[abcdefgjkvu]\).*$/\1/' )
 650           func=$( echo $cspec | sed -e 's/^complete//' -e 's/[^ ]*$//' )
 651 	    COMPREPLY=( $( eval compgen $func $cur ) )
 652 	elif [ "${cspec#*-A}" != "$cspec" ]; then
 653 	    # complete -A <type>
 654 	    func=${cspec#*-A }
 655 	func=${func%% *}
 656 	COMPREPLY=( $( compgen -A $func $cur ) )
 657 	fi
 658     else
 659 	COMPREPLY=( $( compgen -f $cur ) )
 660     fi
 661 }
 662 
 663 
 664 complete -o default -F _my_command nohup exec eval \
 665 trace truss strace sotruss gdb
 666 complete -o default -F _my_command command type which man nice
 667 
 668 # Local Variables:
 669 # mode:shell-script
 670 # sh-shell:bash
 671&nbsp;# End:</PRE
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