[求助]关于从文本中选择的问题。

sejishikong · 发表于 2006-9-8 16:58:49

preinstall scriptlet (using /bin/sh):
# Remove these old glibc files on upgrade (bug #84090).
for file in $(find /usr/share/locale -type f -name LC_TIME); do
[ -x /bin/rm ] && /bin/rm -f "$file"
done
# We must desinstall theses info files since they're merged in
# coreutils.info. else their postun'll be runned too last
# and install-info'll faill badly because of doubles
for file in sh-utils.info textutils.info fileutils.info; do
if [ -f /usr/share/info/$file.bz2 ]; then
/sbin/install-info /usr/share/info/$file.bz2 --dir=/usr/share/info/dir --remove &> /dev/null
fi
done
postinstall scriptlet (using /bin/sh):
/bin/grep -v '(sh-utils)\|(fileutils)\|(textutils)' /usr/share/info/dir > \
/usr/share/info/dir.rpmmodify || exit 0
/bin/mv -f /usr/share/info/dir.rpmmodify /usr/share/info/dir
[ -f /usr/share/info/coreutils.info.gz ] && \
/sbin/install-info /usr/share/info/coreutils.info.gz /usr/share/info/dir || :
preuninstall scriptlet (using /bin/sh):
if [ $1 = 0 ]; then
[ -f /usr/share/info/coreutils.info.gz ] && \
/sbin/install-info --delete /usr/share/info/coreutils.info.gz \
/usr/share/info/dir || :
fi

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想把其中postinstall到preuninstall中的脚本拿出来，就是把

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拿出来，用脚本怎么写？

bikecheng · 发表于 2006-9-8 17:36:44

我写了一段傻乎乎的东东，你看行不，我在想想，我也刚学不久
sed -e '1,/^postinstall/d' -e '/^preuninstall/,/^fi/d' test >tmp

bikecheng · 发表于 2006-9-8 17:38:49

sed -e '1,/^postinstall/d' -e '/^preuninstall/,/^$/d' test >tmp
这个好像好点，不过要保证脚本里没有别的空行

sejishikong · 发表于 2006-9-8 17:43:36

如果有空行呢？

另，如果下面的可能是preuninstall/postuninstall两个中的一个，又怎么办呢？

bikecheng · 发表于 2006-9-8 17:50:44

用这个sed -e '/^$/d' -e '1,/^postinstall/d' -e '/^preuninstall/,/^$/d' test >tmp，万无一失

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