小编use*_*828的帖子

While starting MariaDB I got [Warning] Could not increase number of max_open_files to more than 1024 (request: 4607)

$ sudo systemctl status mysqld
? mysqld.service - MariaDB database server
  Loaded: loaded (/usr/lib/systemd/system/mysqld.service; enabled)
  Active: activating (start-post) since Tue 2014-08-26 14:12:01 EST; 2s ago
Main PID: 8790 (mysqld);         : 8791 (mysqld-post)
  CGroup: /system.slice/mysqld.service
      ??8790 /usr/bin/mysqld --pid-file=/run/mysqld/mysqld.pid
      ??control
    ??8791 /bin/sh /usr/bin/mysqld-post
    ??8841 sleep 1

Aug 26 14:12:01 acpfg mysqld[8790]: 140826 14:12:01 [Warning] Could not increase number of max_open_files to more than 1024 …

我可以通过以下方式过滤掉卡在我们排队系统中的作业：

> qjobs | grep "racon" 
       5240703 racon-3/utg001564l-racon-3.fasta  H   1     1   0     10.0   0.0    150   :03   
       5241418 racon-3/utg002276l-racon-3.fasta  H   1     1   0     10.0   0.0    150   :02   
       5241902 racon-3/utg002759l-racon-3.fasta  H   1     1   0     10.0   0.0    150   :03   
       5242060 racon-3/utg002919l-racon-3.fasta  H   1     1   0     10.0   0.0    150   :04   
       5242273 racon-3/utg003133l-racon-3.fasta  H   1     1   0     10.0   0.0    150   :03   
       5242412 racon-3/utg003270l-racon-3.fasta  H   1     1   0     10.0   0.0    150   :04   
       5242466 racon-3/utg003325l-racon-3.fasta  H   1     1   0     10.0   0.0    150   :03   

但是，qjobs | grep …

我收到以下错误：

./assemblyDB.116.las
test.sh: line 9: ${ls $filename | sed 's/assemblyDB.//' | sed 's/.las//'}: bad substitution

这是脚本：

for filename in $(find . -type f -name "assemblyDB.*.las"); do
   echo $filename
   no=${ls $filename | sed 's/assemblyDB.//' | sed 's/.las//'}
   echo $no
done

我的根分区上没有足够的空间来存储数据库。

$ df -h
Filesystem                         Size  Used Avail Use% Mounted on
/dev/mapper/ManjaroVG-ManjaroRoot   29G   21G  6.4G  77% /
dev                                1.9G     0  1.9G   0% /dev
run                                1.9G  852K  1.9G   1% /run
tmpfs                              1.9G   76K  1.9G   1% /dev/shm
tmpfs                              1.9G     0  1.9G   0% /sys/fs/cgroup
tmpfs                              1.9G  596K  1.9G   1% /tmp
/dev/mapper/ManjaroVG-ManjaroHome  197G   54G  133G  29% /home
/dev/sda1                          247M   88M  147M  38% /boot
tmpfs                              383M  8.0K  383M   1% /run/user/1000

在 my.datadir 中更改数据目录 cnf到新位置导致权限问题（[警告] 无法创建测试文件/home/u/tmp/mysql/acpfg.lower-test ）

如何在 Linux 下更改 MariaDB/MySQL 存储数据库的目录（例如到 /home/u/tmp/mysql）？

我想得到>chr05_pilon_pilon.12.1但不幸的是下面的命令没有删除t

echo '>chr05_pilon_pilon.12.t1' | sed '/^\\>chr[0-9][0-9]_pilon_pilon/ s/\(.*\)t/\1/g'
>chr05_pilon_pilon.12.t1

我错过了什么？

当我运行以下命令时，它会打印整个字符串，例如 Note="Peptidase S59%2C nucleoporin"

awk '$3=="mRNA"'  Nitab-v4.5_gene_models_Chr_Edwards2017.gff | head 
Nt01    maker   mRNA    143295  155540  .   +   .   ID=Nitab4.5_0006317g0010.1;Parent=Nitab4.5_0006317g0010;Name=Nitab4.5_0006317g0010.1;_AED=0.08;_eAED=0.08;_QI=0|0.45|0.25|1|0.90|0.75|12|0|1011;Note="Peptidase S59%2C nucleoporin"
Nt01    maker   mRNA    170633  173860  .   +   .   ID=Nitab4.5_0006317g0020.1;Parent=Nitab4.5_0006317g0020;Name=Nitab4.5_0006317g0020.1;_AED=0.26;_eAED=0.26;_QI=15|0|0|0.83|0.6|0.33|6|0|424;Note="Putative S-adenosyl-L-methionine-dependent methyltransferase"
Nt01    maker   mRNA    156516  160996  .   -   .   ID=Nitab4.5_0006317g0030.1;Parent=Nitab4.5_0006317g0030;Name=Nitab4.5_0006317g0030.1;_AED=0.01;_eAED=0.01;_QI=161|1|1|1|0|0.5|2|358|141;Note="Unknown"
Nt01    maker   mRNA    78554   80638   .   -   .   ID=Nitab4.5_0006317g0040.1;Parent=Nitab4.5_0006317g0040;Name=Nitab4.5_0006317g0040.1;_AED=0.02;_eAED=0.02;_QI=0|0|0|1|1|1|3|0|187;Note="Heavy metal-associated domain%2C HMA"
Nt01    maker   mRNA    111288  129916  .   -   .   ID=Nitab4.5_0006317g0050.1;Parent=Nitab4.5_0006317g0050;Name=Nitab4.5_0006317g0050.1;_AED=0.24;_eAED=0.24;_QI=0|0|0|0.5|1|1|2|0|72;Note="Unknown"
Nt01    maker   mRNA    470560  474346  .   +   .   ID=Nitab4.5_0002367g0010.1;Parent=Nitab4.5_0002367g0010;Name=Nitab4.5_0002367g0010.1;_AED=0.11;_eAED=0.11;_QI=0|0|0|1|1|1|14|0|668;Note="Auxin response factor%2C B3 DNA binding domain%2C DNA-binding pseudobarrel domain%2C AUX/IAA …

我跑了，awk -F= '$20+0 >= 99 && $31+0 >= 50' sample.txt但没有找到以下文件的任何命中：

chr15_pilon_pilon.g1.t1 XP_016515887.1  XP_016515887.1 PREDICTED: uncharacterized protein LOC107832536 [Nicotiana tabacum]  2.7e-36 161.4   407 95  200 1   94  88  181 MKVAEMRMLRWMCGHTRLDKIKNEVIREKVGVAPVEEKMREATLRWFGNVRRRSPDAPVRNCERLEIVGGRRDRGRPKKYWGELIRQDRTRMQV  MKVAEMRMLRWMCGLTRLDKIKNEVIREKVGVAPVDEKMREARLMWFGHVRRRSPDAPVRSCERLAVVGASRGRGRPKRYWGEVIRQDMAKMRI  MKVAEMRMLRWMCGHTRLDKIKNEVIREKVGVAPVEEKMREATLRWFGNVRRRSPDAPVRNCERLEIVGGRRDRGRPKKYWGELIRQDRTRMQV* MNFHLQDGIEKGLVENDKKDHGEDERNDHEQDGRNDHVEVEPLAMTHETWKTELQVCLKGKFYKAVVRPAMLYGVECWPVKNSHVQRMKVAEMRMLRWMCGLTRLDKIKNEVIREKVGVAPVDEKMREARLMWFGHVRRRSPDAPVRSCERLAVVGASRGRGRPKRYWGEVIRQDMAKMRISEDMTLDRKVWRSSIRVVG    161.4   407 94  80.9    76  18  85  0   0   90.4    0   14HL20ED6TR1RM3NH11NS4EAIV2GARS1DG5KR4LV4RMTARK1QRVI    80.9    2.7e-36 98.9
chr15_pilon_pilon.g1.t1 XP_016492639.1  XP_016492639.1 PREDICTED: uncharacterized protein LOC107812125 [Nicotiana tabacum]  2.3e-35 158.3   399 95  316 1   94  188 281 MKVAEMRMLRWMCGHTRLDKIKNEVIREKVGVAPVEEKMREATLRWFGNVRRRSPDAPVRNCERLEIVGGRRDRGRPKKYWGELIRQDRTRMQV  MKVAETRMLKWMCGLTRLDKIKNEVIREKVGVAPVDEKMREARLRWFEHVRRRSPDAPVRSCERLTVVGARRGRGRPKRYWGEVITQDMARMRI  MKVAEMRMLRWMCGHTRLDKIKNEVIREKVGVAPVEEKMREATLRWFGNVRRRSPDAPVRNCERLEIVGGRRDRGRPKKYWGELIRQDRTRMQV* MTSISVNQFGFIPGRSTTEAIHLVRRLVEQFRDKKKDLHMVFIDLEKAYDKVPREVLWRCLEAKSVPEAYIRVIKDMYDGVKTRVKTVSGDSNHFPVVMGLDQGSALSPLLSKTDHLECKFSAEPSEVGRDMKIGSQVIAKRRLALGVLCDKKVPQKLKGKFYRAVVRPAMLYEAECWPVKNSHVQRMKVAETRMLKWMCGLTRLDKIKNEVIREKVGVAPVDEKMREARLRWFEHVRRRSPDAPVRSCERLTVVGARRGRGRPKRYWGEVITQDMARMRIFEDMALDRKVWRYQGCRIGASRIFRTPFPGLGGAW    158.3   399 94  79.8    75  19  84  0   0 …