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tr abc 123 < file1 > file2
# 32 JMJS    11.4.11 16:07

tr [-c] [-d] [-s] [string1] [string2]

-c Complement the set of characters specified by string1.
-d Delete all occurrences of input characters that are specified by string1.
-s Replace instances of repeated characters with a single character.
string1 First string or character to be changed.
string2 Second string or character to change the string1.

Examples

tr -s '[a-z][A-Z]' '[A-Z][a-z]' <input_file >output_file

echo "12345678 9247" | tr 123456789 computerh
:this example takes an echo response of '12345678 9247' and pipes it through the tr replacing the appropriate numbers with the letters. In this example it would return computer hope.

tr -cd '\11\12\40-\176' < myfile1 > myfile2
:this example would take the file myfile1 and strip all non printable characters and take that results to myfile2.

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105  Split and merge large files JMJS 16.3.21 846
104  [Makefile]random JMJS 14.12.5 1282
100  À©µµ¿ì7 ¿ë·®ºÎÁ· winsxs Æú´õ ÃÖÀûÈ­ JMJS 14.10.14 2191
99  [sh,csh]while loop JMJS 13.2.6 2245
98  hostname, hostid, /sbin/ifconfig eth0 JMJS 13.1.4 4270
97  [linux]fedora 16 gome-shell extension JMJS 12.3.12 1964
96  [linux]fedora 16 grub boot order change JMJS 12.3.10 2165
95  [linux]fedora Input Method,ibus,hangul JMJS 12.3.8 1853
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93  [sh].wrapper example JMJS 11.6.15 2144
92  [make]for loop JMJS 11.9.8 1854
91  [make]conditional expression JMJS 11.5.12 1745
90  [make]shell ½ÇÇà JMJS 11.3.9 1858
89  [wish]jplot JMJS 10.5.12 1519
88  yum JMJS 09.8.12 1541
87  [CYGWIN]X setupÇϱâ JMJS 10.8.6 2923
86  [Make]Makefile Brief JMJS 10.8.6 1593
85  ldd /user/bin/xterm JMJS 09.4.24 1268
84  [HTML]¾îµµºñ SVG ºä¾î¿Í HTML JMJS 09.4.24 1849
83  [DOS]DOS command JMJS 09.7.20 1510
82  [DOS]DOS command brief JMJS 07.2.21 2000
81  À¥ÆäÀÌÁö ¼Ò½ºº¸±â JMJS 09.4.24 1526
80  [html]ÀÚµ¿À¸·Î ±ÛÀÚ»ö ¹Ù²ñ JMJS 07.1.10 1474
79  [html]º¹»ç, µå·¡±× ±ÝÁö JMJS 07.1.10 1965
78  [csh]cshell¿¡¼­ function ¸ø¾´´Ù³×¿ä JMJS 11.3.17 1545
77  ¸®´ª½º¿¡¼­ i386,i586,i686, x86ÀÇ Â÷ÀÌÁ¡ JMJS 06.10.16 1755
76  [CSH]$status JMJS 06.8.21 1224
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72  lmutil.csh JMJS 05.11.8 1688
71  È­ÀÏÀ̸§¿¡ ¸ø¿À´Â ¹®ÀÚ JMJS 05.9.8 1494
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66  find . -name -print -exec perl JMJS 09.4.17 1638
65  pkgadd -d packagefile JMJS 05.5.9 1399
64  prstat JMJS 08.10.2 1638
63  vi ¸í·É¾î, vim¸í·É¾î gvim JMJS 11.2.11 4921
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61  [csh].cshrc_axis JMJS 04.5.14 1688
60  [csh].cshrc_modelsim JMJS 04.5.14 1767
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56  lmgrd JMJS 09.6.22 2422
55  [csh]which case JMJS 04.5.14 1682
54  [bash]example 2 JMJS 04.5.12 1947
53  [bash]example 1 JMJS 04.5.12 1781
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49  [csh]make awk JMJS 03.6.6 2070
48  [csh]wordsplit JMJS 03.6.6 1701
47  [csh]vi2 JMJS 03.6.6 1529
46  [csh]cat.csh JMJS 03.6.6 1602
45  [csh]chgword.csh JMJS 03.6.6 1530
44  [bash]password JMJS 11.3.9 1455
43  [Tcl]bi2int JMJS 02.11.29 1446
42  [PC]ask °Ë»öâÀÌ ÀÚ²Ù ¶á´Ù¸é JMJS 09.4.24 1988
41  [csh]backup_copyc.csh; foreach; continue JMJS 09.4.24 1624
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39  [tk]»õ â ¿­°í ´Ý±â ¿¹Á¦ JMJS 09.4.24 11423
38  [sh]if [[ "$abc" == "abc" && "$bbc" == "bbc" ]]; ... JMJS 11.3.17 1532
37  [expect]expect_scp.exp JMJS 11.3.9 1624
36  ssh -x -l soc lion scp -r ... JMJS 11.3.9 1414
35  TclTk ¹è¿­ JMJS 09.7.20 1541
34  ./configure make make install JMJS 11.1.13 1410
33  [csh]diff JMJS 10.7.14 1495
32  tr abc 123 < file1 > file2 JMJS 11.4.11 1444
31  Installing RPMforge JMJS 10.2.8 1538
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