一组小脚本

KornLee · 发表于 2004-5-28 14:36:38

在网上找的,这些小脚本很有趣,也很简单

希望对大家有帮助 :thank
------------------------------------------------------------------
calc

#!/bin/ksh
#
# A very simple calculator - one expression per command
#
print $(($*))

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------------------------------------------------------------------
calc2

#!/bin/ksh
#
# A more complex calculator - multiple expressions till ctrl-c
#
trap 'print Thank you for calculating!' EXIT
while read expr'?expression> '; do
print $(($expr))
done

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------------------------------------------------------------------
conj

#!/bin/ksh
#
# A program to convert tiff to jpeg - with checking
#
print there are $# files to convert
print $*
print Is this correct
done=false
while [[ $done = false ]]; do
done=true
{
print 'Enter y for yes'
print 'Enter n for no'
} >&2
read REPLY?'answer? '
case $REPLY in
y ) GO=y ;;
n ) GO=n ;;
* ) print 'invalid.'
done=false ;;
esac
done
if [[ "$GO" = "y" ]] then
for filename in "$@" ; do
newfile=${filename%.tif}.jpg
eval convert $filename $newfile
done
fi

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------------------------------------------------------------------
conjx

#!/bin/ksh
#
# A simple program to convert tiff to jpeg
#
for filename in "$@" ; do
newfile=${filename%.tif}.jpg
eval convert $filename $newfile
done

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------------------------------------------------------------------
copro

#!/bin/ksh
ed - memo |&
print -p /word/
read -p search
print "$search"

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------------------------------------------------------------------
copro2

#!/bin/ksh
search=eval echo /word/ | ed - memo
print $search

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------------------------------------------------------------------
files

#!/bin/ksh
#
# A program to give information about a file
#
if [[ ! -a $1 ]]; then
print "file $1 does not exist."
return 1
fi
if [[ -d $1 ]]; then
print -n "$1 is a directory that you may"
if [[ ! -x $1 ]]; then
print -n " not "
fi
print "search."
elif [[ -f $1 ]]; then
print "$1 is a regular file."
else
print "$1 is a special type of file."
fi
if [[ -O $1 ]]; then
print 'you own the file.'
else
print 'you do not own the file.'
fi
if [[ -r $1 ]]; then
print 'you have read permission on the file.'
fi
if [[ -w $1 ]]; then
print 'you have write permission on the file.'
fi
if [[ -x $1 && ! -d $1 ]]; then
print 'you have execute permission on the file.'
fi

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------------------------------------------------------------------
flist

#!/bin/ksh
#
# A program to list multiple files seperated with file name as
# a sub-header and the date as the header
#
narg=$#
if test $# -eq 0
then echo "No files requested for listing"
exit
fi
if test $# -eq 2
then
head=$1
shift
fi
echo `date`
for i
in $*
do
echo "------------------------------------------------------------------"
if test $narg -eq 1
then head=$i
fi
echo $head
echo
cat $i
done

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------------------------------------------------------------------
lower

#!/bin/ksh
#
# A program to convert file names to lower case
#
for filename in "$@" ; do
typeset -l newfile=$filename
eval mv $filename $newfile
done

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------------------------------------------------------------------
term1

#!/bin/ksh
#
# An example of using select and setting terminal options
#
PS3='terminal? '
select term in vt100 vt102 vt220 xterm; do
if [[ -n $term ]]; then
TERM=$term
print TERM is $TERM
break
else
print 'invalid.'
fi
done

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------------------------------------------------------------------
term2

#!/bin/ksh
#
# An example of using select and case to set terminal type
#
print 'Select your terminal type:'
PS3='terminal? '
select term in \
'DEC vt100' \
'DEC vt102' \
'DEC vt220' \
'xterm'
do
case $REPLY in
1 ) TERM=vt100 ;;
2 ) TERM=vt102 ;;
3 ) TERM=vt220 ;;
4 ) TERM=xterm ;;
* ) print 'invalid.' ;;
esac
if [[ -n $term ]]; then
print TERM is $TERM
break
fi
done

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------------------------------------------------------------------
testit

#!/bin/ksh
#
# Script to test functions inside a shell program
#
testopt $*

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------------------------------------------------------------------
upper

#!/bin/ksh
#
# A program to convert file names to upper case
#
for filename in "$@" ; do
typeset -u newfile=$filename
eval mv $filename $newfile
done[/coe]
------------------------------------------------------------------
usernames
[code]
#!/bin/ksh
#
# A program to generate email addresses of users sorted by surname
#
niscat passwd.org_dir | gawk 'BEGIN {FS=":"} /area/ && !/ftp/ && !/cccb/ && !/africa/ {print $5,$1}' | gawk '{print $(NF-1),$0 | "sort"}' | gawk 'ORS=" "{for ( i=2;i\n"}' > users

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------------------------------------------------------------------
grep2

#!/bin/ksh
#
# Script to search for two words in a file
#
filename=$1
word1=$2
word2=$3
if grep $word1 $filename && grep $word2 $filename
then
print "$word1 and $word2 are both in $filename."
fi

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------------------------------------------------------------------
guess

#!/bin/ksh
#
# A simple number guessing program
#
trap 'print Thank you for playing!' EXIT
magicnum=$(($RANDOM%10+1))
print 'Guess a number between 1 and 10:'
while read guess'?number> '; do
sleep 1
if (( $guess == $magicnum )); then
print 'Right!'
exit
fi
print 'Wrong!'
done

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------------------------------------------------------------------
guesshl

#!/bin/ksh
#
# Another number guessing program
#
magicnum=$(($RANDOM%100+1))
print 'Guess a number between 1 and 100:'
while read guess'?number> '; do
if (( $guess == $magicnum )); then
print 'Right!'
exit
fi
if (( $guess < $magicnum )); then
print 'Too low!'
else
print 'Too high!'
fi
done

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------------------------------------------------------------------
message

#!/bin/ksh
#
# An
#
eval /disk2/bin/msgs
print 'Select your option:'
PS3='(1-3 or q)? '
select opt in \
'quit' \
'list header of all messages' \
'read all available messages'
do
case $REPLY in
1|q ) break ;;
2 ) eval /disk2/bin/msgs -h 1 ;;
3 ) eval /disk2/bin/msgs 1 ;;
* ) print "type q to quit" ;;
esac
done

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------------------------------------------------------------------
minute

#!/bin/ksh
#
# A simple program to count a minute
#
i=0
date
while test $i -lt 60;do
print $i
sleep 1
let i=i+1
done
date

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------------------------------------------------------------------
minute2

#!/bin/ksh
#
# A slightly more elegant version of minute
#
i=0
date
print
while test $i -lt 60;do
print "[1A"$i
sleep 1
let i=i+1
done
date

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------------------------------------------------------------------
copro

#!/bin/ksh
ed - memo |&
print -p /word/
read -p search
print "$search"

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------------------------------------------------------------------
copro2

#!/bin/ksh
search=eval echo /word/ | ed - memo
print $search

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------------------------------------------------------------------
infloop

#!/bin/ksh
#
# A simple program that loops indefinitely
#
trap 'print "You hit control-C"' INT
trap 'print "You hit control-"' QUIT
trap 'print "You tried to kill me!"' TERM
while true; do
sleep 60
done

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一组小脚本

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