我的脚本有以下输出:
panos@panos:~/scripts> ./list_packages openSUSE-2016-254
zypper-aptitude.noarch : 1.12.23-1.1 update needed
zypper-log.noarch : 1.12.23-1.1 update needed
libsolv-debugsource : None not installed
libsolv-demo : None not installed
libsolv-demo-debuginfo : None not installed
libsolv-devel : None not installed
libsolv-devel-debuginfo : None not installed
libsolv-tools : 0.6.14-1.1 update needed
libsolv-tools-debuginfo : None not installed
perl-solv : None not installed
perl-solv-debuginfo : None not installed
python-solv : 0.6.14-1.1 update needed
python-solv-debuginfo : None not installed
ruby-solv : None not installed
ruby-solv-debuginfo : None not installed
libzypp : 15.19.5-1.1 update needed
libzypp-debuginfo : None not installed
libzypp-debugsource : None not installed
libzypp-devel : None not installed
libzypp-devel-doc : None not installed
zypper : 1.12.23-1.1 update needed
zypper-debuginfo : None not installed
zypper-debugsource : None not installed
输出是根据一些 if-else 语句生成的。让我给你我的源代码中使用的三个 echo 命令:
echo "$pkg : $pkg_version update needed"
echo "$pkg : $new_version updated"
echo "$pkg : None not installed"
我的问题是希望它们位于列中,例如:
$pkg\t$pkg_version\t$message
但由于某些包名的长度超过 8 个字符,整个“制表符”变得很难看。有什么建议么?
答案1
有两种方法:
- 使用 bash'
printf
函数打印并格式化输出(而不是echo
) - 使用
column -s : -t
命令
./list_packages openSUSE-2016-254 | column -s : -t
zypper-aptitude.noarch 1.12.23-1.1 update needed
zypper-log.noarch 1.12.23-1.1 update needed
libsolv-debugsource None not installed
libsolv-demo None not installed
libsolv-demo-debuginfo None not installed
libsolv-devel None not installed
libsolv-devel-debuginfo None not installed
libsolv-tools 0.6.14-1.1 update needed
libsolv-tools-debuginfo None not installed
perl-solv None not installed
perl-solv-debuginfo None not installed
python-solv 0.6.14-1.1 update needed
python-solv-debuginfo None not installed
ruby-solv None not installed
ruby-solv-debuginfo None not installed
libzypp 15.19.5-1.1 update needed
libzypp-debuginfo None not installed
libzypp-debugsource None not installed
libzypp-devel None not installed
libzypp-devel-doc None not installed
zypper 1.12.23-1.1 update needed
zypper-debuginfo None not installed
zypper-debugsource None not installed
答案2
您可以使用类似的东西:while read -r arg1 arg2; do awk '{print "package: $arg1 version: $arg1}';done < input file
所以想法是 arg1 将始终是该行中的第一个单词,arg2 将是第二个单词,依此类推。您可以使用if
grep
etc 来实现所需的目标。希望有帮助!