多年来,我注意到 GNU 在 Unix 中的 grep(不仅仅是 Linux 风格)检测到我正在交互地使用具有颜色功能的 TERM,例如 xterm/gnome-terminal/kconsole,并且很好地在上下文中为我的搜索表达式着色。
什么可能是一个简单的 cli 工具,它只会加粗/突出显示您的正则表达式或简单的搜索字符串,但与 grep 不同,它不会过滤掉任何行?也许一个sed技巧可以做到这一点,我可以别名和以后的管道命令?
例子
所以我写了一个程序pricehist.sh,它通常会为另一个程序生成类似 CSV 的数据,但我经常像这样直观地检查它:
./pricehist.sh mostalexp-GPW 28 |sort -r -g -k 3 -t ' ' |column -t -s", "
MOSTALEXP,20120222,0.78,0.79,0.76,0.77,63900,0.77 0.04000 5.00000 -0.01000 -1.25000 49203
MOSTALEXP,20120203,0.82,0.82,0.78,0.78,446089,0.78 0.04000 4.87805 0 0 347949
MOSTALEXP,20120124,0.71,0.71,0.69,0.71,61478,0.71 0.03000 4.16667 -0.01000 -1.38889 43649
MOSTALEXP,20120130,0.73,0.73,0.70,0.73,59488,0.73 0.03000 4.10959 0 0 43426
MOSTALEXP,20120210,0.79,0.81,0.77,0.81,104120,0.81 0.03000 3.75000 0.01000 1.25000 84337
MOSTALEXP,20120213,0.80,0.80,0.78,0.80,86606,0.80 0.03000 3.70370 -0.01000 -1.23457 69284
MOSTALEXP,20120126,0.69,0.75,0.69,0.72,146353,0.72 0.02000 2.81690 0.04000 5.63380 105374
MOSTALEXP,20120131,0.72,0.73,0.71,0.72,72734,0.72 0.02000 2.73973 0 0 52368
MOSTALEXP,20120123,0.72,0.73,0.71,0.72,24133,0.72 0.02000 2.73973 0 0 17375
MOSTALEXP,20120214,0.78,0.81,0.78,0.79,56990,0.79 0.02000 2.50000 0.01000 1.25000 45022
MOSTALEXP,20120209,0.79,0.82,0.79,0.80,65243,0.80 0.02000 2.46914 0.01000 1.23457 52194
MOSTALEXP,20120118,0.69,0.70,0.68,0.69,62520,0.69 0.01000 1.44928 0.01000 1.44928 43138
MOSTALEXP,20120125,0.70,0.71,0.70,0.71,92317,0.71 0.01000 1.40845 0 0 65545
MOSTALEXP,20120201,0.71,0.74,0.71,0.74,199791,0.74 0.01000 1.38889 0.02000 2.77778 147845
MOSTALEXP,20120127,0.73,0.73,0.71,0.73,38157,0.73 0.01000 1.38889 0.01000 1.38889 27854
MOSTALEXP,20120207,0.78,0.79,0.77,0.79,56243,0.79 0.01000 1.28205 0.01000 1.28205 44431
MOSTALEXP,20120206,0.78,0.80,0.77,0.78,133597,0.78 0.01000 1.28205 0.02000 2.56410 104205
MOSTALEXP,20120221,0.81,0.81,0.79,0.80,112738,0.80 0.01000 1.25000 0.01000 1.25000 90190
MOSTALEXP,20120217,0.80,0.85,0.79,0.80,272245,0.80 0.01000 1.25000 0.05000 6.25000 217796
MOSTALEXP,20120216,0.81,0.81,0.79,0.80,30814,0.80 0.01000 1.25000 0.01000 1.25000 24651
MOSTALEXP,20120113,0.66,0.66,0.65,0.65,90267,0.65 0.00500 0.76336 0.00500 0.76336 58673
MOSTALEXP,20120220,0.80,0.82,0.80,0.80,83881,0.80 0 0 0.02000 2.50000 67104
MOSTALEXP,20120215,0.80,0.82,0.79,0.80,128714,0.80 0 0 0.03000 3.79747 102971
MOSTALEXP,20120208,0.79,0.84,0.79,0.81,280446,0.81 0 0 0.05000 6.32911 227161
MOSTALEXP,20120120,0.74,0.74,0.72,0.73,128831,0.73 0 0 0.02000 2.77778 94046
MOSTALEXP,20120117,0.67,0.71,0.67,0.69,284886,0.69 0 0 0.04000 5.97015 196571
MOSTALEXP,20120116,0.65,0.67,0.65,0.67,9548,0.67 0 0 0.02000 3.07692 6397
MOSTALEXP,20120202,0.75,0.87,0.75,0.82,1270955,0.82 -0.01000 -1.35135 0.13000 17.56757 1042183
MOSTALEXP,20120119,0.70,0.74,0.70,0.72,320471,0.72 -0.01000 -1.44928 0.05000 7.24638 230739
在管道的末尾(在 之后|column -t
)添加一些至少突出显示 string 的东西会很好,$(date +%Y%m%d)
目前评估为20120222
另一个例子是tail -F /tmp/*.log | grep -C 9999 YouJustGotHacked
除了我不希望 grep 实际过滤掉任何行,只是让YouJustGotHacked更容易在噪音中发现。