我有这些文件:
atk-2.8.0-ia64-11.31.depot gtk+2-2.24.25-ia64-11.31.depot lzo-2.09-ia64-11.31.depot
bash-4.3.030-ia64-11.31.depot gtk+3-3.6.5-ia64-11.31.depot m4-1.4.17-ia64-11.31.depot
bash-4.3.033-ia64-11.31.depot harfbuzz-0.9.35-ia64-11.31.depot make-4.1-ia64-11.31.depot
bzip2-1.0.6-ia64-11.31.depot harfbuzz-0.9.36-ia64-11.31.depot Mesa-7.4.4-ia64-11.31.depot
cairo-1.14.0-ia64-11.31.depot harfbuzz-0.9.37-ia64-11.31.depot ncurses-5.9-ia64-11.31.depot
coreutils-8.23-ia64-11.31.depot harfbuzz-0.9.38-ia64-11.31.depot nettle-2.7.1-ia64-11.31.depot
cups-1.7.5-ia64-11.31.depot heimdal-1.5.2-ia64-11.31.depot openldap-2.4.40-ia64-11.31.depot
cyrus_sasl-2.1.26-ia64-11.31.depot installed_packages.txt openssl-1.0.1j-ia64-11.31.depot
db-6.0.20-ia64-11.31.depot jasper-1.900.1-ia64-11.31.depot openssl-1.0.1k-ia64-11.31.depot
editline-2.9-ia64-11.31.depot jpeg-9.1.0-ia64-11.31.depot openssl-1.0.1l-ia64-11.31.depot
expat-2.1.0-ia64-11.31.depot lcms2-2.6-ia64-11.31.depot openssl-1.0.2-ia64-11.31.depot
findutils-4.4.2-ia64-11.31.depot lcms-1.19-ia64-11.31.depot p11_kit-0.22.1-ia64-11.31.depot
flex-2.5.39-ia64-11.31.depot ldns-1.6.17-ia64-11.31.depot packages-ia64-11.31.gz
fontconfig-2.11.1-ia64-11.31.depot libcroco-0.6.8-ia64-11.31.depot pango-1.36.8-ia64-11.31.depot
freetype-2.5.3-ia64-11.31.depot libffi-3.1-ia64-11.31.depot pcre-8.36-ia64-11.31.depot
freetype-2.5.5-ia64-11.31.depot libffi-3.2.1-ia64-11.31.depot pixman-0.32.6-ia64-11.31.depot
gdk_pixbuf-2.28.2-ia64-11.31.depot libgcrypt-1.6.2-ia64-11.31.depot popt-1.16-ia64-11.31.depot
gettext-0.19.3-ia64-11.31.depot libgpg_error-1.17-ia64-11.31.depot readline-6.3.008-ia64-11.31.depot
gettext-0.19.4-ia64-11.31.depot libgpg_error-1.18-ia64-11.31.depot rsync-3.1.1-ia64-11.31.depot
ghostscript-9.06.0-ia64-11.31.depot libgsf-1.14.30-ia64-11.31.depot tar-1.28-ia64-11.31.depot
ghostscript-9.14.0-ia64-11.31.depot libiconv-1.14-ia64-11.31.depot termcap-1.3.1-ia64-11.31.depot
glib2-2.34.3-ia64-11.31.depot libidn-1.29-ia64-11.31.depot tiff-4.0.3-ia64-11.31.depot
gmp-5.0.5-ia64-11.31.depot libpng-1.6.8-ia64-11.31.depot unbound-1.4.22-ia64-11.31.depot
gnutls-3.3.10-ia64-11.31.depot librsvg-2.40.5-ia64-11.31.depot unbound-1.5.0-ia64-11.31.depot
gnutls-3.3.11-ia64-11.31.depot libtasn1-4.2-ia64-11.31.depot unbound-1.5.1-ia64-11.31.depot
gnutls-3.3.12-ia64-11.31.depot libXft-2.3.2-ia64-11.31.depot vim-7.4-ia64-11.31.depot
gnutls-3.3.9-ia64-11.31.depot libxml2-2.9.1-ia64-11.31.depot xz-5.0.7-ia64-11.31.depot
grep-2.20-ia64-11.31.depot libxml2-2.9.2-ia64-11.31.depot xz-5.2.0-ia64-11.31.depot
grep-2.21-ia64-11.31.depot libXrender-0.9.8-ia64-11.31.depot zlib-1.2.8-ia64-11.31.depot
gtk+2-2.24.24-ia64-11.31.depot lzo-2.08-ia64-11.31.depot
其中一些具有较旧的版本号,我想删除所有具有次要版本号的重复文件。用bash脚本可以吗?还是awk?
答案1
可以通过 GNU ls
+ awk
one-liner 来完成:
ls -vr *.depot | awk -F- '$1 == name{system ("rm \""$0"\"")}{name=$1}'
说明:文件名作为 awk 脚本的输入传递。这些选项-vr
导致文件名按版本号以相反的顺序排序,因此 egfoo-1.9.depot
位于foo-1.10.depot
. awk 脚本将名称的第一部分(直到第一个-
)存储在变量中name
。当当前名称的第一部分与先前名称的第一部分相同时,调用脚本rm
来删除当前文件(这是旧版本)。
答案2
$ cat remover
#!/usr/bin/perl
for(<*depot>){
if(/(\w.*?)-(\d+)(?:\.(\d+))?\.(\d+)-/){
$norm=sprintf("%04d%04d%04d",$2,$3,$4);
if($v{$1} and $v{$1} > $norm){ unlink($_) ; next }
if($v{$1} ){ unlink($name{$1}) }
$v{$1}=$norm;
$name{$1}=$_;
}
}
如果您喜欢输出,请尝试perl remover
替换print
为system