我有一个纯文本文件,其中包含用破折号分隔的曲目标题和艺术家。我想将所有标题放入一个数组 ( TRK_TITLE[]
) 中。同时创建艺术家数组 ( ARTIST[]
)。下面是我正在使用的代码:
CTR=0
# Read in the track title file
while read line
do
# Add to the counter
CTR=$((CTR + 1))
# Get the track number
TRK_NUM[$CTR]=$CTR
# VARIOUS is set by command line parameter
if [ $VARIOUS = "FALSE" ]
then
# -- THIS BIT WORKS! ------------------------------
TRK_TITLE[$CTR]=${line}
# ARTISTS determined by grandparent directory name.
ARTIST[$CTR]="$ARTISTS"
# THE BIT THAT DOESN'T WORK AS IT APPEARS ---------
else
# VARIOUS has been set to TRUE
# Get the track title
# 1st, Make sure I'm dealing with something sensible
echo "$line"
# Get the length of the line,
# just for information
total_len=${#line}
# Find the position of the "-"
dash_pos=`expr index "$line" -`
# These lines prove that the syntax works
echo "${line:0:$dash_pos - 2}"
echo "${line:$dash_pos + 1}"
echo $total_len "--" $dash_pos
# Now add to arrays
TRK_TITLE[$CTR]="${line:0:$dash_pos -2}"
#TRK_TITLE="${line:0:$dash_pos -2}"
ARTIST[$CTR]="${line:$dash_pos + 1}"
#ARTIST="${line:$dash_pos + 1}"
#Now to see the output
echo $TRK_TITLE[$CTR] "is Track"
#echo "$TRK_TITLE is Track"
echo $ARTIST[$CTR] "is Artist"
#echo "$ARTIST is Artist"
fi
# keep going until the end
# Variable name used for input file
done < "$FYL_2_USE"
当哈希在它们所在的位置时,输出如下:
献给我爱的人——妈妈和爸爸
献给我爱的人
妈妈和爸爸
53 -- 29
[19] 是轨道
[19] 是艺术家
如果在 variable 和 echo 语句上交换散列,则输出如下:
献给我爱的人——妈妈和爸爸
献给我爱的人
妈妈和爸爸
53 -- 29
献给我爱的人是轨道
妈妈和爸爸是艺术家
Shell 是 Gnu Bash V4.1.0(2)