CategoryComputingTips > DebianCompTips

Debian GNU/Linux Tips

See all of dpkg -l

dpkg -l gets cutoff? Use:

COLUMNS=200 dpkg -l

or if you just want package names:

dpkg --get-selections

Keeping up with changes in packages

apt-get install apt-listchanges - I like to keep up-to-date know what's changed on my woody boxes. This emails you the diffs of upgraded packages when you run apt-get upgrade.

Some common apt problems

I keep finding out that a number of people don't know these two things.

Firstly, E: Dynamic MMap ran out of room errors when doing an apt-get update are easily resolved by adding a line to /etc/apt/apt.conf like so:

Cache-Limit "8388608";

(There's no special significance to this number AFAIK except that it represents 8MB, and has always been good enough for me. I suggest trying 16777216 if it doesn't work...)

Secondly, running out of space in /var is quite common for newbie debian users. Packages downloaded by apt are stored in /var/cache/apt, so if this gets full you can end up with logging and mail delivery breaking and stuff. The solution is to either have this directory on its own partition, or to use apt-get clean every so often. (Note that tools like dselect apparently do this automatically, though)

[http://www.linkfh.com/enidine.htm enidine] [http://www.linkfh.com/koganei.htm koganei] [http://www.linkfh.com/sunx-sunx.htm sunx] [http://www.bjsailing.com.cn/pt100.htm pt100] [http://www.1so.com.cn/led/index.htm LED] [http://chinasocks.freewebpage.org socks] [http://www.1so.com.cn/socks/index.htm socks] [http://www.65588125.com/socks.htm socks] [http://www.1so.com.cn/vpn/index.htm vpn] [http://www.bochao.com.cn/cad.htm cad] [http://chinacad.freewebpage.org cad] [http://www.online-ccc.com ccc certification] [http://www.huahuan.com/cp/h9mox-155.htm sdh] [http://www.1so.com.cn 网站推广] [http://www.online-ccc.com ccc certification] [http://www.goodyour.com/books/ 周易] [http://welltrend.freewebpage.org 移民] [http://www.huahuan.com/cp/h9mox-155.htm sdh] ][http://www.antu.com.cn/fme_jjie.htm 地理信息系统] [http://www.antu.com.cn 电子政务] [http://www.wangmatongli.com/chanpin1.asp 视频会议] [http://www.1so.com.cn/hunqing/ 婚庆] [http://hunqing.freewebpage.org 婚庆] [http://www.65588125.com/hunqing.htm 婚庆] [http://www.albaudio.com/newindex/ 灯光] [http://suji.freewebpage.org 速记培训] [http://chinacad.freewebpage.org cad] [http://www.goodyour.com 起名|取名] [http://www.btclvacuum.com/jly.htm 检漏仪] [http://www.btclvacuum.com/dwb.htm 低温泵] [http://www.zhenkonglu.com/zkl.htm 真空炉] [http://www.zhenkonglu.com/rcl.htm 热处理] [http://www.1so.com.cn/qingdian/index.htm 庆典] [http://www.1so.com.cn/liyi/index.htm 礼仪] [http://www.byxy.net/jiaquan.htm 甲醛检测仪] [http://www.byxy.net/cedong.htm 连续测氡仪] [http://www.sailworld.cn/tzys.htm 土著艺术] [http://www.sailworld.cn/fchh.htm 帆船航海] [http://www.sailworld.cn 龙之行俱乐部] [http://www.bjsailing.com.cn/chuanganqi.htm 传感器] [http://www.bjsailing.com.cn/yali.htm 压力传感器] [http://www.bjsailing.com.cn/wendu.htm 温度传感器] [http://www.bjsailing.com.cn/pt100.htm pt100] [http://www.bjsailing.com.cn/kongzhiqi.htm 控制器] [http://www.cmmdc.com.cn/yaopinpifa.htm 药品批发] [http://www.cmmdc.com.cn/dianzishangwu.htm 医药电子商务] [http://www.cmmdc.com.cn/yiyaopifa.htm 医药批发] [http://www.zytemp.com.cn/hwcw.htm 红外测温] [http://www.hmlaser.com/laser.htm 激光] [http://www.hmlaser.com/diaokeji.htm 雕刻机] [http://www.vorx.com.cn/spjk.htm 视频监控] [http://www.vorx.com.cn/bjmq.htm 编解码器] [http://www.hm-it.com 接口转换器] [http://www.jianmi.com Quixtar] [http://www.jianmi.com/book.asp?id=503 Quixtar] [http://www.jianmi.com/index.asp Quixtar] [http://www.jianmi.com/baojianpin Quixtar] [http://www.jianmi.com/baojianshipin/index.htm Quixtar] [http://www.jianmi.com/baojianshipin/index.htm Quixtar] [http://www.jianmi.com/baojianshipin/index.htm Quixtar] [http://www.jianmi.com/baojianshipin/index.htm Quixtar] [http://www.65588125.com GOOGLE] [http://www.65588125.com GOOGLE] [http://www.65588125.com GOOGLE] [http://www.65588125.com GOOGLE] [http://pmflow.freewebpage.org 企业管理软件] [http://pmflow.freewebpage.org 企业管理] [http://pmflow.freewebpage.org/product.htm 行政管理软件] [http://pmflow.freewebpage.org/xingzheng.htm 行政管理] [http://pmflow.freewebpage.org/hetong.htm 合同采购管理软件] [http://pmflow.freewebpage.org/hetong.htm 采购管理软件] [http://pmflow.freewebpage.org/liucheng.htm 项目流程管理软件]